19-0942; Rev 3; 5/10


Single/Dual/Triple/Quad Operational Amplifiers


ICL761X–ICL764X

General Description Features

The ICL761X–ICL764X family of monolithic CMOS op amps combine ultra-low input current with low-power operation over a wide supply voltage range. With pin- selectable quiescent currents of 10µA, 100µA, or 1000µA per amplifier, these op amps will operate from

±1V to ±8V power supplies, or from single supplies from 2V to 16V. The CMOS outputs swing to within milli- volts of the supply voltages.

The ultra-low bias current of 1pA makes this family of op amps ideal for long time constant integrators, picoammeters, low droop rate sample/hold amplifiers and other applications where input bias and offset cur- rents are critical. A low noise current of 0.01pAHz and an input impedance of 1012 ensure optimum perfor- mance with very high source impedances in such applications as pH meters and photodiode amplifiers.

Applications Ordering Information

ICL76XX

M

N

OP


VOS SELECTION

TEMP RANGE

PKG CODE


A = 2mV

C = 0°C to 70°C

TV= 8-Pin TO- 99

B = 5mV

E = -40°C to

+85°C

PA = 8-Pin

Plastic Dip

C = 10mV

M = -55°C to

+125°C

SA = 8-Pin

Small SO

D = 15mV


JD = 14-Pin CERDIP

E = 20mV


PD = 14-Pin

Plastic Dip



SD = 14-Pin

Small SO



JE = 16-Pin CERDIP



PE = 16-Pin

Plastic Dip



SE = 16-Pin

Small SO



WE – 16-Pin

Wide SO

Battery-Powered Instruments Low-Leakage Amplifiers

Long-Time Constant Integrators Low-Frequency Active Filters

Hearing Aids and Microphone Amplifiers Low Droop Rate Sample/Hold Amplifiers Picoammeters

TOP VIEW SINGLES—ICL7611/12/14/16 TO—99


(IOSET)*

OFFSET 8 V+

1 7


-IN 2 6 OUTPUT


+IN 3 5 OFFSET

4

V-


*PIN 7 CONNECTED TO CASE 8-PIN DIP


OFFSET 1 8 (IOSET)*


IN 2 7 V+


+IN 3 6 OUT


V- 4 5 OFFSET


*EXTERNAL COMPENSATION (ICL7614)

Pin Configuration


Typical Operating Circuit appears at end of data sheet.


Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.


ICL761X–ICL764X

Ordering Information (continued)


ICL7642 ICL7641 ICL7632 ICL7631 ICL7622 ICL7621 ICL7616 ICL7614 ICL7612 ICL7611

Compensated

X

X


X

X

X

X


X

X

Externally Compensated



X








Extended CMVR


X


X







Offset null capability

X

X

X

X


X





Programmable IQ

X

X


X



X

X



Fixed IQ-10µA










X

Fixed IQ- 100µA



X


X

X





Fixed IQ-1mA









X



Ordering Information (Single/Dual)


PART

TEMP RANGE

PIN-PACKAGE

ICL761XACPA

0°C to +70°C

8 Plastic Dip

ICL761XACSA

0°C to +70°C

8 Slim SO

ICL761XACTV

0°C to +70°C

TO-99 Metal Can

ICL761XAMTV

-55°C to +125°C

TO-99 Metal Can

ICL761XBCPA

0°C to +70°C

8 Plastic Dip

ICL761XBCSA

0°C to +70°C

8 Slim SO

ICL761XBCTV

0°C to +70°C

TO-99 Metal Can

ICL761XBESA

-40°C to +85°C

8 Slim SO

ICL761XBMTV

-55°C to +125°C

TO-99 Metal Can

ICL761XDCPA

0°C to +70°C

8 Plastic Dip

ICL761XDCSA

0°C to +70°C

8 Slim SO

ICL761XDCTV

0°C to +70°C

TO-99 Metal Can

ICL761XDESA

-40°C to +85°C

8 Slim SO

ICL7621ACPA

0°C to +70°C

8 Plastic Dip

ICL7621ACSA

0°C to +70°C

8 Slim SO

ICL7621ACTV

0°C to +70°C

TO-99 Metal Can

ICL7621AMTV

-55°C to +125°C

TO-99 Metal Can

ICL7621BCPA

0°C to +70°C

8 Plastic Dip

PART

TEMP RANGE

PIN-PACKAGE

ICL7621BCSA

0°C to +70°C

8 Slim SO

ICL7621BCTV

0°C to +70°C

TO-99 Metal Can

ICL7621BMTV

-55°C to +125°C

TO-99 Metal Can

ICL7621DCPA

0°C to +70°C

8 Plastic Dip

ICL7621DCSA

0°C to +70°C

8 Slim SO

ICL7621DCTV

0°C to +70°C

TO-99 Metal Can

ICL7622ACPD

0°C to +70°C

14 Plastic Dip

ICL7622ACSD

0°C to +70°C

14 Slim SO

ICL7622ACJD

0°C to +70°C

14 CERDIP

ICL7622AMJD

-55°C to +125°C

14 CERDIP

ICL7622BCPD

0°C to +70°C

14 Plastic Dip

ICL7622BCSA

0°C to +70°C

14 Slim SO

ICL7622BCJD

0°C to +70°C

14 CERDIP

ICL7622BMJD

-55°C to +125°C

14 CERDIP

ICL7622DCPD

0°C to +70°C

14 Plastic Dip

ICL7622DCSD

0°C to +70°C

14 Slim SO

ICL7622DCJD

0°C to +70°C

14 CERDIP

Note: X above is replaced by: 1, 2, 4, 8.


9 V+

+INB 6

B

+ -

A

- +

*PIN 7 CONNECTED TO CASE

+ -

A

ICL761X–ICL764X

Pin Configurations


TOP VIEW

SINGLES—ICL7611/12/14/16 TO—99

DUALS—ICL7621/22 TO—99


(IOSET)* V+


OFFSET 1

8

7 V+

OUTA 1

8

7 OUTB

14 LEAD


-IN 2

6 OUTPUT

-INA 2

6 -INB

-INA 1

14 OFFSETA


+IN 3

4

V-

5 OFFSET

+INA 3

4

V-

5 +INB

+INA 2

13 V+


OFFSETA 3

12 OUTA



V- 4

11 N.C.


8 LEAD

8 LEAD


OFFSETB 5

10 OUTB

OFFSET 1

8 (IOSET)*

OUTA 1

8 V+



-IN 2

7 V+

-INA 2

7 OUTB

B

+ - -INB 7

8 OFFSETB

+IN 3 6 OUT +INA 3 6 -INB


NOTE: PINS 9 & 13 ARE INTERNALLY CONNECTED


V- 4

5 OFFSET

V- 4

5 +INB


*EXTERNAL COMPENSATION (ICL7614)


ICL761X–ICL764X

ABSOLUTE MAXIMUM RATINGS (Single/Dual)

Total Supply Voltage (V+ to V-) ...........................................+18V

Input Voltage ........................................(V+ + 0.3V) to (V- - 0.3V)

Differential Input Voltage (Note 1) ......±(V+ + 0.3V) to (V- - 0.3V) Duration of Output Short Circuit (Note 2) ......................Unlimited Continuous Power Dissipation (TA = +25°C)

TO-99 Metal Can (derate 2mW/°C above +25°C) .......250mW

8-Pin Minidip (derate 2mW/°C above +25°C) ..............250mW 14-Pin Plastic (derate 3mW/°C above +25°C) .............375mW 14-Pin CERDIP (derate 4mW/°C above +25°C)...........500mW 16-Pin Plastic (derate 3mW/°C above +25°C) .............375mW 16-Pin CERDIP (derate 4mW/°C above +25°C)...........500mW

Operating Temperature Ranges:

M Series .............................................................-55°C to +125°C

E Series................................................................-40°C to +85°C

C Series .................................................................-0°C to +70°C

Storage Temperature Range ............................-55°C to +150°C

Lead Temperature (soldering, 10s) ................................+300°C Soldering Temperature (reflow)

Lead(Pb)-Free Packages.............................................+260°C

Packages Containing Lead..........................................+240°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.


Note 1: Long-term offset voltage stability will be degraded if large input differential voltages are applied for long periods of time.

Note 2: The outputs may be shorted to ground or to either supply for VSUPP 10V. Care must be taken to insure that the dissipation rating is not exceeded.


ELECTRICAL CHARACTERISTICS (Single/Dual)

(VSUPP = ±1.0V, IQ = 10µA, TA = +25°C, unless otherwise noted.)



PARAMETER


SYMBOL


CONDITIONS

ICL76XXA

ICL76XXB


UNITS

MIN

TYP

MAX

MIN

TYP

MAX


Input Offset Voltage


VOS

RS 100kΩ, TA = +25°C

2

5


mV

RS 100kΩ, TMIN TA TMAX


3


7

Temperature Coefficient of VOS

ΔVOS/ΔT

RS 100kΩ

10

15

µV/°C

Input Offset Current

IOS

TA = +25°C


0.5

30


0.5

30

pA

0°C TA +70°C

300

300

Input Bias Current

IBIAS

TA = +25°C


1.0

50


1.0

50

pA

0°C TA +70°C

500

500

Common-Mode Voltage Range (Except ICL7612/ ICL7616)


VCMR



-0.4



+0.6


-0.4



+0.6


V

Extended Common- Mode Voltage Range (ICL7612 Only)


VCMR



-1.1



+0.6


-1.1



+0.6


V

Extended Common- Mode Voltage Range (ICL7616 Only)


VCMR


IQ = 10µA


-1.3



-0.3


-1.3



-0.3


V


Output Voltage Swing


VOUT

RL = 1MΩ, TA = +25°C

±0.98

±0.98


V

RL = 1MΩ, 0°C TA

+70°C

±0.96

±0.96


ICL761X–ICL764X

ELECTRICAL CHARACTERISTICS (Single/Dual) (continued)

(VSUPP = ±1.0V, IQ = 10µA, TA = +25°C, unless otherwise noted.)


PARAMETER

SYMBOL

CONDITIONS

ICL76XXA

ICL76XXB

UNITS

MIN

TYP

MAX

MIN TYP

MAX


Large-Signal Voltage Gain


AVOL

VO = ±0.1V, RL = 1M, TA = +25°C

90

90


dB

VO = ±0.1V, RL = 1M, 0°C TA +70°C

80

80

Unity-Gain Bandwidth

GBW


0.044

0.044

MHz

Input Resistance

RIN


1012

1012

Common-Mode Rejection Ratio

CMRR

RS 100k

80

80

dB

Power-Supply Rejection Ratio

PSRR

RS 100k

80

80

dB

Input-Referred Noise Voltage

en

RS = 100, f = 1kHz

100

100

nV/Hz

Input-Referred Noise Current

in

RS = 100, f = 1kHz

0.01

0.01

pA/Hz

Supply Current (Per Amplifier)

ISUPP

No signal, no load

6

15

6

15

µA

Slew Rate

SR

AVOL = 1, CL = 100pF, VIN = 0.2VP-P, RL = 1M

0.016

0.016

V/µs

Rise Time

tr

VIN = 50mV, CL = 100pF, RL = 1M

20

20

µs

Overshoot Factor


VIN = 50mV, CL = 100pF, RL = 1M

5

5

%

ELECTRICAL CHARACTERISTICS (Single/Dual)

(VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.)



PARAMETER


SYMBOL


CONDITIONS

ICL76XXA

ICL76XXB

ICL76XXD


UNITS

MIN TYP MAX

MIN TYP MAX

MIN TYP MAX


Input Offset Voltage


VOS

RS 100k, TA = +25°C

2

5

15


mV

RS 100k, TMIN TA TMAX

3

7

20

Temperature Coefficient of VOS

VOS/T

RS 100k

10

15

25

µV/°C


Input Offset Current


IOS

TA = +25°C

0.5 30

0.5 30

0.5 30


pA

C: 0°C TA

+70°C

300

300

300

E: -40°C TA

+85°C

800

800

800

M: -55°C TA

+125°C

800

800

800


ICL761X–ICL764X

ELECTRICAL CHARACTERISTICS (Single/Dual) (continued)

(VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.)


PARAMETER

SYMBOL

CONDITIONS

ICL76XXA

ICL76XXB

ICL76XXD

UNITS

MIN TYP MAX

MIN TYP MAX

MIN TYP MAX


Input Bias Current


IBIAS

TA = +25°C

1.0 50

1.0 50

1.0 50


pA

C: 0°C TA

+70°C

400

400

400

E: -40°C TA

+85°C

4000

4000

4000

M: -55°C TA

+125°C

4000

4000

4000


Common-Mode Voltage Range (Except ICL7612/ ICL7616)


VCMR

IQ = 10µA (Note 3)

+4.4

+4.4

+4.4


V

-4.0

-4.0

-4.0

IQ = 100µA (Note 3)

+4.2

+4.2

+4.2

-4.0

-4.0

-4.0

IQ = 1mA (Note 3)

+3.7

+3.7

+3.7

-3.7

-3.7

-3.7


Extended Common-Mode Voltage Range (ICL7612 Only)


VCMR

IQ = 10µA

±5.3

±5.3

±5.3


V

IQ = 100µA

+5.3

+5.3

+5.3

-5.1

-5.1

-5.1

IQ = 1mA

+5.3

+5.3

+5.3

-4.5

-4.5

-4.5


Extended Common-Mode Voltage Range (ICL7616 Only)


VCMR

IQ = 10µA

-5.3

-5.3

-5.3


V

+3.7

+3.7

+3.5

IQ = 100µA

-5.1

-5.1

-5.1

+3.0

+3.0

+2.7

IQ = 1mA

-4.5

-4.5

-4.5

+2.0

+2.0

+1.7


ICL761X–ICL764X

ELECTRICAL CHARACTERISTICS (Single/Dual) (continued)

(VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.)



PARAMETER


SYMBOL


CONDITIONS

ICL76XXA

ICL76XXB

ICL76XXD


UNITS

MIN TYP MAX

MIN TYP MAX

MIN TYP MAX


Output Voltage Swing


VOUT


IQ = 10µA, RL =

1M

(Note 3)

TA =

+25°C

±4.9

±4.9

±4.9


V

C: 0°C

TA

+70°C


±4.8


±4.8


±4.8

E: -40°C

TA

+85°C


±4.7


±4.7


±4.7

M: -55°C

TA

+125°C


±4.7


±4.7


±4.7


IQ = 100µA, RL =

100k

TA =

+25°C


±4.9


±4.9


±4.9

C: 0°C

TA

+70°C


±4.8


±4.8


±4.8

E: -40°C

TA

+85°C


±4.5


±4.5


±4.5

M: -55°C

TA

+125°C


±4.5


±4.5


±4.5


IQ = 1mA, RL

= 10k

(Note 3)

TA =

+25°C

±4.5

±4.5

±4.5

C: 0°C

TA

+70°C


±4.3


±4.3


±4.3

E: -40°C

TA

+85°C


±4.0


±4.0


±4.0

M: -55°C

TA

+125°C


±4.0


±4.0


±4.0


ICL761X–ICL764X

ELECTRICAL CHARACTERISTICS (Single/Dual) (continued)

(VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.)


PARAMETER

SYMBOL

CONDITIONS

ICL76XXA

ICL76XXB

ICL76XXD

UNITS

MIN TYP MAX

MIN TYP MAX

MIN TYP MAX


Large-Signal Voltage Gain


AVOL


VO =

±4.0V RL = 1M,

IQ = 10µA

TA =

+25°C

86 104

80 104

80 104


dB

C: 0°C

TA

+70°C


80


75


75

E: -40°C

TA

+85°C


74


68


68

M: -55°C

TA

+125°C


74


68


68


VO =

±4.0V, RL =

100k,

IQ = 100µA


TA =

+25°C


86 102


80 102


80 102

C: 0°C

TA

+70°C


80


75


75

E: -40°C

TA

+85°C


74


68


68

M: -55°C

TA

+125°C


74


68


68


VO =

±4.0V, RL =

10k,

IQ =

1mA (Note 3)


TA =

+25°C


80 83


76 83


76 83

C: 0°C

TA

+70°C


76


72


72

E: -40°C

TA

+85°C


72


68


68

M: -55°C

TA

+125°C


72


68


68


ICL761X–ICL764X

ELECTRICAL CHARACTERISTICS (Single/Dual) (continued)

(VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.)


PARAMETER

SYMBOL

CONDITIONS

ICL76XXA

ICL76XXB

ICL76XXD

UNITS

MIN

TYP

MAX

MIN

TYP

MAX

MIN

TYP

MAX


Unity-Gain Bandwidth


GBW

IQ = 10µA (Note 3)

0.044

0.044

0.044


MHz

IQ = 100µA

0.48

0.48

0.48

IQ = 1mA (Note 3)

1.4

1.4

1.4

Input Resistance

RIN


1012

1012

1012


Common-Mode Rejection Ratio


CMRR

RS 100k,

IQ = 10µA (Note 3)

76

96


70

96


70

96



dB

RS 100k, IQ = 100µA


76


91



70


91



70


91


RS 100k,

IQ = 1mA (Note 3)


66


87



60


87



60


87



Power-Supply Rejection Ratio


PSRR

RS 100k,

IQ = 10µA (Note 3)

80

94


80

94


80

94



dB

RS 100k, IQ = 100µA

80

86


80

86


80

86


RS 100k,

IQ = 1mA (Note 3)

70

77


70

77


70

77


Input-Referred Noise Voltage

en

RS = 100, f =

1kHz

100

100

100

nV/Hz

Input-Referred Noise Current

in

RS = 100, f =

1kHz

0.01

0.01

0.01

pA/Hz


Supply Current (Per Amplifier)


ISUPP


No signal, no load


IQ = 10µA

(Note 3)



0.01


0.02



0.01


0.02



0.01


0.02


mA

IQ = 100µA



0.1


0.25



0.1


0.25



0.1


0.25

IQ = 1mA

(Note 3)



1.0


2.5



1.0


2.5



1.0


2.5

Channel Separation

VO1 / VO2

AVOL = 100

120

120

120

dB


ICL761X–ICL764X

ELECTRICAL CHARACTERISTICS (Single/Dual) (continued)

(VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.)


PARAMETER

SYMBOL

CONDITIONS

ICL76XXA

ICL76XXB

ICL76XXD

UNITS

MIN TYP MAX

MIN TYP MAX

MIN TYP MAX


Slew Rate (Note 4)


SR


AVOL = 1, CL =

100pF, VIN = 8VP-P

IQ = 10µA

(Note 3), RL = 1M


0.016


0.016


0.016


V/µs

IQ = 100µA, RL

= 100k


0.16


0.16


0.16

IQ = 1mA

(Note 3), RL =

10k


1.6


1.6


1.6


Rise Time (Note 4)


tr


VIN = 50mV, CL = 100pF

IQ = 10µA

(Note 3), RL = 1M


20


20


20


µs

IQ = 100µA, RL

= 100k


2


2


2

IQ = 1mA

(Note 3), RL =

10k


0.9


0.9


0.9


Overshoot Factor (Note 4)



VIN = 50mV, CL = 100pF

IQ = 10µA

(Note 3), RL = 1M


5


5


5


%

IQ = 100µA, RL

= 100k


10


10


10

IQ = 1mA

(Note 3), RL =

10k


40


40


40

Note 3: ICL7611, ICL7612, ICL7616 only.

Note 4: ICL7814; 39pF from pin 6 to pin 8.


ICL761X–ICL764X

Ordering Information (Triple/Quad)


PART

TEMP RANGE

PIN-PACKAGE

ICL763XBCPE

0°C to +70°C

16 Plastic Dip

ICL763XBCSE

0°C to +70°C

16 Slim SO

ICL763XCCPE

0°C to +70°C

16 Plastic Dip

ICL763XCCSE

0°C to +70°C

16 Slim SO

ICL763XECPE

0°C to +70°C

16 Plastic Dip

ICL763XECSE

0°C to +70°C

16 Slim SO

ICL763XBCJE

0°C to +70°C

16 CERDIP

ICL763XCCJE

0°C to +70°C

16 CERDIP

ICL763XECJE

0°C to +70°C

16 CERDIP

ICL763XBMJE

-55°C to +125°C

16 CERDIP

ICL763XCMJE

-55°C to +125°C

16 CERDIP

PART

TEMP RANGE

PIN-PACKAGE

ICL764XBCPD

0°C to +70°C

14 Plastic Dip

ICL764XBCWE

0°C to +70°C

16 Wide SO

ICL764XCCPD

0°C to +70°C

14 Plastic Dip

ICL764XCCWE

0°C to +70°C

16 Wide SO

ICL764XECPD

0°C to +70°C

14 Plastic Dip

ICL764XECWE

0°C to +70°C

16 Wide SO

ICL764XBCJD

0°C to +70°C

14 CERDIP

ICL764XCCJD

0°C to +70°C

14 CERDIP

ICL764XECJD

0°C to +70°C

14 CERDIP

ICL764XBMJD

-55°C to +125°C

14 CERDIP

ICL764XCMJD

-55°C to +125°C

14 CERDIP

Note: X above is replaced by 1, 2.


- + + - - + + -

B C B C

B

13 V-

V+ 4

13 V-

V+ 4

14 +IND

+INA 3

14 +IND

+INA 3

14 OUTA

3

Pin Configurations


TOP VIEW



ICL7631/32 16 LEAD

ICL7641/42

16 LEAD WIDE S.O.

ICL7641/42 14 LEAD


N.C. 1

16 IOC SET

OUTA 1

16 OUTD

OUTA 1

16 OUTD


- A + + D - - A + + D -


-INA 2

15 V+

-INA 2

15 -IND

-INA 2

15 -IND


-

+INA

+

A


OUTB 4

+


-

13 +INB


V+ 5

12 -INB

INB 5

12 +INC

INB 5

12 +INC


SET IOC 6

11 IOB SET

-INB 6

11 -INC

-INB 6

11 -INC


-INC 7

-

C

+

10 OUT

OUTB 7

10 OUTC

OUTB 7

10 OUTC



+INC 8

9 V-

N.C. 8

9 N.C.



NOTE: PINS 5 & 15 ARE INTERNALLY CONNECTED


ICL761X–ICL764X

ABSOLUTE MAXIMUM RATINGS (Triple/Quad)

Total Supply Voltage (V+ to V-) ...........................................+18V

Input Voltage ........................................(V+ + 0.3V) to (V- - 0.3V)


16-Pin Plastic (derate 3mW/°C above +25°C) .............375mW 16-Pin CERDIP (derate 4mW/°C above +25°C)...........500mW

Differential Input Voltage (Note 5) .......±|(V+ + 0.3V) - (V- - 0.3V)

Duration of Output Short Circuit (Note 6) ......................Unlimited Continuous Power Dissipation (TA = +25°C)

TO-99 Metal Can (derate 2mW/°C above +25°C) .......250mW

8-Pin Minidip (derate 2mW/°C above +25°C) ..............250mW 14-Pin Plastic (derate 3mW/°C above +25°C) .............375mW 14-Pin CERDIP (derate 4mW/°C above +25°C)...........500mW

Operating Temperature Ranges:

M Series .............................................................-55°C to +125°C

E Series................................................................-40°C to +85°C

C Series .................................................................-0°C to +70°C

Storage Temperature Range ............................-55°C to +150°C

Lead Temperature (soldering, 10s) ................................+300°C


Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.


Note 5: Long-term offset voltage stability will be degraded if large input differential voltages are applied for long periods of time.

Note 6: The outputs may be shorted to ground or to either supply for VSUPP 10V. Care must be taken to insure that the dissipation rating is not exceeded.

ELECTRICAL CHARACTERISTICS (Triple/Quad)

(VSUPP = ±1.0V, IQ = 10µA, TA = +25°C, unless otherwise noted.) (Specifications apply to ICL7631/7632/7642 only.)



PARAMETER


SYMBOL


CONDITIONS

ICL76XXB

ICL76XXC


UNITS

MIN

TYP

MAX

MIN

TYP

MAX


Input Offset Voltage


VOS

RS 100k, TA = +25°C

5

10


mV

RS 100k, TMIN TA TMAX


7


12

Temperature Coefficient of VOS

VOS/T

RS 100k

15

20

µV/°C

Input Offset Current

IOS

TA = +25°C


0.5

30


0.5

30

pA

0°C TA +70°C

300

300

Input Bias Current

IBIAS

TA = +25°C


1.0

50


1.0

50

pA

0°C TA +70°C

500

500

Common-Mode Voltage Range

VCMR


-0.4


+0.6

-0.4


+0.6

V


Output Voltage Swing


VOUT

RL = 1M, TA = +25°C

±0.98

±0.98


V

RL = 1M, 0°C TA

+70°C

±0.96

±0.96


Large-Signal Voltage Gain


AVOL

VO = ±0.1V, RL = 1M, TA = +25°C

90

90


dB

VO = ±0.1V, RL = 1M, 0°C TA +70°C


80


80

Unity-Gain Bandwidth

GBW


0.044

0.044

MHz

Input Resistance

RIN


1012

1012

Common-Mode Rejection Ratio

CMRR

RS 100k

80

80

dB


ICL761X–ICL764X

ELECTRICAL CHARACTERISTICS (Triple/Quad) (continued)

(VSUPP = ±1.0V, IQ = 10µA, TA = +25°C, unless otherwise noted.) (Specifications apply to ICL7631/7632/7642 only.)


PARAMETER

SYMBOL

CONDITIONS

ICL76XXB

ICL76XXC

UNITS

MIN TYP MAX

MIN TYP MAX

Power-Supply Rejection Ratio

PSRR


80

80

dB

Input-Referred Noise Voltage

en

RS = 100, f = 1kHz

100

100

nV/Hz

Input-Referred Noise Current

in

RS = 100, f = 1kHz

0.01

0.01

pA/Hz

Supply Current (Per Amplifier)

ISUPP

No signal, no load

6 15

6 15

µA

Channel Separation

VO1 / VO2

AVOL = 100

120

120

dB

Slew Rate

SR

AVOL = 1, CL = 100pF, VIN = 0.2VP-P, RL = 1M

0.016

0.016

V/µs

Rise Time

tr

VIN = 50mV, CL = 100pF, RL = 1M

20

20

µs

Overshoot Factor


VIN = 50mV, CL = 100pF, RL = 1M

5

5

%

ELECTRICAL CHARACTERISTICS (Triple/Quad)

(VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.)


PARAMETER

SYMBOL

CONDITIONS

ICL76XXB

ICL76XXC

ICL76XXE

UNITS

MIN TYP MAX

MIN TYP MAX

MIN TYP MAX


Input Offset Voltage


VOS

RS 100k, TA = +25°C

5

10

20


mV

RS 100k, TMIN TA TMAX


7


15


25

Temperature Coefficient of VOS

VOS/T

RS 100k

15

20

30

µV/°C


Input Offset Current


IOS

TA = +25°C

0.5 30

0.5 30

0.5 30


pA

C: 0°C TA

+70°C


300


300


300

M: -55°C TA

+125°C


800


800


800


Input Bias Current


IBIAS

TA = +25°C

1.0 50

1.0 50

1.0 50


pA

C: 0°C TA

+70°C

500

500

500

M: -55°C TA

+125°C

4000

4000

4000


ICL761X–ICL764X

ELECTRICAL CHARACTERISTICS (Triple/Quad) (continued)

(VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.)


PARAMETER

SYMBOL

CONDITIONS

ICL76XXB

ICL76XXC

ICL76XXE

UNITS

MIN TYP MAX

MIN TYP MAX

MIN TYP MAX


Common-Mode Voltage Range


VCMR

IQ = 10µA (Note 7)

+4.4

+4.4

+4.4


V

-4.0

-4.0

-4.0

IQ = 100µA (Note 9)

+4.2

+4.2

+4.2

-4.0

-4.0

-4.0

IQ = 1mA (Note 8)

+3.7

+3.7

+3.7

-3.7

-3.7

-3.7


Output Voltage Swing


VOUT


IQ = 10µA, RL =

1M

(Note 7)

TA =

+25°C

±4.9

±4.9

±4.9


V

C: 0°C

TA

+70°C


±4.8


±4.8


±4.8

M: -55°C

TA

+125°C


±4.7


±4.7


±4.7


IQ = 100µA, RL =

100k

(Note 9)

TA =

+25°C


±4.9


±4.9


±4.9

C: 0°C

TA

+70°C


±4.8


±4.8


±4.8

M: -55°C

TA

+125°C


±4.5


±4.5


±4.5


IQ = 1mA, RL

= 10k (Note 8)

TA =

+25°C


±4.5


±4.5


±4.5

C: 0°C

TA

+70°C


±4.3


±4.3


±4.3

M: -55°C

TA

+125°C


±4.0


±4.0


±4.0


ICL761X–ICL764X

ELECTRICAL CHARACTERISTICS (Triple/Quad) (continued)

(VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.)


PARAMETER

SYMBOL

CONDITIONS

ICL76XXB

ICL76XXC

ICL76XXE

UNITS

MIN TYP MAX

MIN TYP MAX

MIN TYP MAX


Large-Signal Voltage Gain


AVOL


VO =

±4.0V, RL = 1M,

IQ = 10µA

(Note 7)

TA =

+25°C

86 104

80 104

80 104


dB

C: 0°C

TA

+70°C


80


75


75

M: -55°C

TA

+125°C


74


68


68


VO =

±4.0V, RL =

100k,

IQ = 100µA

TA =

+25°C


86 102


80 102


80 102

C: 0°C

TA

+70°C


80


75


75

M: -55°C

TA

+125°C


74


68


68


VO =

±4.0V, RL =

10k

(Note 8), IQ =

1mA

(Note 7)

TA =

+25°C

86 98

80 98

80 98

C: 0°C

TA

+70°C


80


75


75

M: -55°C

TA

+125°C


74


68


68


ICL761X–ICL764X

ELECTRICAL CHARACTERISTICS (Triple/Quad) (continued)

(VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.)


PARAMETER

SYMBOL

CONDITIONS

ICL76XXB

ICL76XXC

ICL76XXE

UNITS

MIN

TYP

MAX

MIN

TYP

MAX

MIN

TYP

MAX



Unity-Gain Bandwidth


GBW

IQ = 10µA (Note 7)

0.044

0.044

0.044


MHz

IQ = 100µA (Note 9)

0.48

0.48

0.48

IQ = 1mA (Note 8)

1.4

1.4

1.4

Input Resistance

RIN


1012

1012

1012


Common-Mode Rejection Ratio


CMRR

RS 100k,

IQ = 10µA (Note 7)

76

96


70

96


70

96



dB

RS 100k, IQ = 100µA

76

91


70

91


70

91


RS 100k,

IQ = 1mA (Note 8)

66

87


60

87


60

87



Power-Supply Rejection Ratio


PSRR

RS 100k,

IQ = 10µA (Note 7)

80

94


80

94


80

94



dB

RS 100k, IQ = 100µA

80

86


80

86


80

86


RS 100k,

IQ = 1mA (Note 8)

70

77


70

77


70

77


Input-Referred Noise Voltage

en

RS = 100, f = 1kHz

100

100

100

nV/Hz

Input-Referred Noise Current

in

RS = 100, f = 1kHz

0.01

0.01

0.01

pA/Hz


Supply Current (Per Amplifier)


ISUPP


No signal, no load

IQ = 10µA

(Note 7)


0.01

0.022


0.01

0.022


0.01

0.022


mA

IQ = 100µA



0.1


0.25



0.1


0.25



0.1


0.25

IQ = 1mA

(Note 8)



1.0


2.5



1.0


2.5



1.0


2.5

Channel Separation

VO1 / VO2

AVOL = 100

120

120

120

dB


Slew Rate (Note 10)


SR


AVOL = 1, CL =

100pF, VIN = 8VP-P

IQ = 10µA

(Note 7), RL = 1M


0.016


0.016


0.016


V/µs

IQ = 100µA, RL = 100k

0.16

0.16

0.16

IQ = 1mA

(Note 7),

RL = 10k


1.6


1.6


1.6


ICL761X–ICL764X

ELECTRICAL CHARACTERISTICS (Triple/Quad) (continued)

(VSUPP = ±5.0V, TA = +25°C, unless otherwise noted.)


PARAMETER

SYMBOL

CONDITIONS

ICL76XXB

ICL76XXC

ICL76XXE

UNITS

MIN TYP MAX

MIN TYP MAX

MIN TYP MAX


Rise Time (Note 10)


tr


VIN = 50mV, CL = 100pF

IQ = 10µA

(Note 7), RL = 1M


20


20


20


µs

IQ = 100µA, RL = 100k

2

2

2

IQ = 1mA

(Note 8), RL = 10k


0.9


0.9


0.9


Overshoot Factor (Note 10)



VIN = 50mV, CL = 100pF

IQ = 10µA

(Note 7), RL = 1M


5


5


5


%

IQ = 100µA, RL = 100k

10

10

10

IQ = 1mA

(Note 8),

RL = 10k


40


40


40

Note 7: Does not apply to ICL7641. Note 8: Does not apply to ICL7642. Note 9: ICL7631/ICL7632 only.

Note 10: Does not apply to ICL7632.


Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)


ICL761X–ICL764X

Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)


ICL761X–ICL764X

Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)


ICL761X–ICL764X

Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)


Detailed Description

Quiescent Current Selection The voltage input to the IQ pin of the single and triple amplifiers selects a quiescent current (IQ) of 10µA, 100µA, or 1000µA. The dual and quad amplifiers have fixed quiescent current (IQ) settings. Unity-gain band- width and slew-rate increase with increasing quiescent current, as does output sink current capability. The out- put source current capability is independent of quies- cent current.

The lowest IQ setting that results in sufficient bandwidth and slew rate should be selected for each specific application.

The IQ pin of the single and triple amplifiers controls the quiescent current as follows:


IQ = 10µA IQ pin to V+

IQ = 100µA IQ pin between V- + 0.8V and V+ - 0.8V IQ = 1mA IQ pin to V-


Input Offset Nulling The input offset can be nulled by connecting a 25k pot between the OFFSET terminals with the wiper con- nected to V+. At quiescent currents of 1mA and 100µA, the nulling range provided is adequate for all VOS selections. However, with higher values of VOS, and an IQ of 10µA, nulling may not be possible.

Frequency Compensation All of the ICL7611 and ICL7621 series except the ICL7614 are internally compensated for unity-gain operation. The ICL7614 is externally compensated by a capacitor connected between COMP and OUT pins, with 39pF being greater than unity. The compensation capacitor value may be reduced to increase the band- width and slew rate. The ICL7132 is not compensated and does not have frequency compensation pins. Use only at gains 20 at IQ of 1mA; at gains > 10 at IQ of 100µA; at gain > 5 at IQ of 10µA.

Output Loading Considerations Approximately 70% of the amplifier’s quiescent current flows in the output stage. The output swing can approach the supply rails for output loads of 1M, 100k, and 10k, using the output stage in a highly linear Class A mode. Crossover distortion is avoided

and the voltage gain is maximized in this mode. The output stage, however, can also be operated in Class AB, which supplies higher output currents (see the Typical Operating Characteristics). The voltage gain decreases and the output transfer characteristic is non- linear during the transition from Class A to Class B operation.

ICL761X–ICL764X

The output stage, with a gain that is directly proportion- al to load impedance, approximates a transconduc- tance amplifier. Approximately the same open-loop gains are obtained at each of the IQ settings if corre- sponding loads of 10k, 100k, and 1M are used.

The maximum output source current is higher than the maximum sink current, and is independent of IQ.

Like most amplifiers, there are output loads for which the amplifier stability is not guaranteed. In particular, avoid capacitive loads greater than 100pF; and while on the 1mA IQ setting, avoid loads less than 5k. Since the output stage is a transconductance output, very large (>10µF) capacitive loads will create a dominant pole and the output will be stable, even with loads that are less than 5k.

Extended Common-Mode Voltage Range

(ICL7612/ICL7616)

A common-mode voltage range that includes both V+ and V- is often desirable, especially in single-supply operation. The ICL7612/ICL7616 extended common- mode range op amps are designed specifically to meet this need. The ICL7612 input common-mode voltage range (CMVR) extends beyond both power-supply rails when operated with at least 3V total supply and an IQ of 10µA or 100µA. The ICL7616 CMVR includes the negative supply voltage (or ground when operated with a single supply) at an IQ or 10µA or 100µA.

PC Board Layout Careful PC board layout techniques must be used to take full advantage of the very low bias current of the ICL7611 family. The inputs should be encircled with a low-impedance trace, or guard, that is at the same potential as the inputs. In an inverting amplifier, this is normally ground; in a unity-gain buffer connect the guard to the output. A convenient way of guarding the 8-pin TO-99 version of the ICL7611 is to use a 10-pin circle, with the two extra pads on either side of the input pins to provide space for a guard ring (see Figure 8). Assembled boards should be carefully cleaned, and if a high humidity environment is expected, confor- mally coated.


ICL761X–ICL764X

Single-Supply Operation The ICL7611 family will operate from a single 2V to 16V power supply. The common-mode voltage range of the standard amplifier types when operated from a single supply is 1.0V to (V+ - 0.6V) at 10µA IQ. At 100µA IQ, the CMVR is 1.0V to (V+ - 0.8V), and at 1mA IQ, the CMVR is 1.3V to (V+ - 1.3V). If this CMVR range is insufficient, use the ICL7612, whose CMVR includes

Low-Voltage Operation Operation at VSUPP = ±1.0V is only guaranteed at IQ = 10µA. Output swings to within a few millivolts of the supply rails are achievable for RL (> or =) 1M. Guaranteed input CMVR is ±0.6V minimum and typical- ly +0.9V to -0.7V at VSUPP = ±1.0V. For applications where greater common-mode range is desirable, see the description of ICL7612 and ICL7616 above.

includes ground.

both ground and V+, or the ICL7616, whose CMVR Applications Information

A convenient way to generate a psuedo-ground at V+/2 is to use one op amp of a quad to buffer a V+/2 voltage from a high-impedance resistive divider.

Note that in no case is IQ shown. The value of IQ must be chosen by the designer with regard to frequency response and power dissipation.



+ + R R3 A1

-


R2

R1 R -

+A3 VOUT

VIN +18V R2

25k R3


-

A2

- +

GAIN = R3 (2R2 +1) R R1


VIN +

ICL7612 VOUT

-

RL 10k

Figure 1. Instrumentation Amplifier—Adjust R3 to improve CMRR. The offset of all three amplifiers is nulled by the offset adjustment of A2.

Figure 2. Simple Follower—By using the ICL7612 in these applications, the circuits will follow rail-to-rail inputs



+5 +5


VIN -

VOUT

+ TO CMOS OR

100k LPTTL LOGIC


1M

IH5040


1F

- +


-

ICL7611 VOUT

+

Figure 3. Level Detector—By using the ICL7612 in these appli- cations, the circuits will follow rail-to-rail inputs.



- 1M

-

+

12 +

ICL7621 12

ICL7621

1M

V- V+

DUTY CYCLE


880k


Figure 5. Precise Triangle/Square Wave Generator—The fre- quency and duty cycle are virtually independent of power sup- ply.

Figure 4. Photocurrent Integrator—Low-leakage currents allow integration times up to several hours.


1M

VON

0.05F 10k 2.2M 20k


VIN

TO

SUCCEEDING

+ 10F 20k INPUT

STAGE

-

12 1.8k = 5%

ICL7621 SCALE VOL

ADJUST -

COMMON

+ 12

ICL7621


ICL761X–ICL764X

Figure 6. Averaging AC to DC Converter—Recommended for Maxim’s ICL7106/ICL7107/ICL7109 A/D Converters.


INPUTS


+15V


+15V

100


10k NOTE 1

V+ NOTE 2

IO

COMP

10k OUT

V-


NOTES:

1. ICL7611, 7612, 7616, 7631, 7632

2. ICL7611, 7612, 7616, 7621, 7622, 7631, 7641, 7642


BOTTOM VIEW

V+ IOSET

OUTPUT 7 8

6 1


5 2

4 3


V

GUARD

Figure 7. Burn-In and Life Test Circuit Figure 8. Input Guard for TO-99



S/H CONTROL INPUT

100k S2 1

R1 2

S1

12 ICL7622

A2 VOUT

ICL7622 A1

IH5141

VIN CHOLD


CINT

1F


RIN

VIN -

VOUT

+

ICL761X–ICL764X

Figure 9. Low Droop Rate Sample and Hold—S2 improves accuracy and acquisition time by including the voltage drop across S1 inside the feedback loop. R1 closes the feedback loop of A1 during the hold phase. The droop rate is [IBIAS(AZ)

+ ILEAK(S1) + ILEAK(S2)]/CHOLD.



CFB


RFB - 1011


-


CURRENT + VO = 100mV/pA SOURCE

Figure 11. Pico Ammeter—The response time of this curcuit is RFB x CFB, where CFB is the stray capacitance between the output and the inverting terminal of the amplifier.

Figure 10. Long-Time Constant Integrator—With RIN = 1011, the time constant of this integrator is 100,000s. Since the input voltage is converted to a current by RIN, the input voltage can far exceed the power-supply range.




10M 10M - OUTPUT

+

VIN ICL7611

540pF


5M


270pF 270pF

Figure 12. 60Hz Twin “T“ Notch Filter—The low 1pA bias cur- rent of the ICL7611 allows use of small 540pF and 270pF capacitors, even with a notch frequency of 60Hz. The 60Hz rejection is approximately 40dB.

Typical Operating Circuit



CINT


RIN

VIN -

VOUT

+


LONG TIME CONSTANT INTEGRATOR

(Detailed Circuit Diagram — Figure 10)


ICL761X–ICL764X

Chip Topographies


Package Information

For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.


PACKAGE TYPE

PACKAGE CODE

DOCUMENT NO.

TO99

T99-8

21-0022

8 PDIP

P8-1

21-0043

8 SO

S8-2

21-0041

8 CDIP

J16-3

21-0045

14 PDIP

P14-3

21-0043

14 CDIP

J14-3

21-0045

16 PDIP

P16-1

21-0043

16 SO

S16-1

21-0041

16 Wide SO

W16-2

21-0042


ICL761X–ICL764X

Revision History


REVISION NUMBER

REVISION DATE

DESCRIPTION

PAGES CHANGED

2

4/08

Removed all part numbers offered in die form from the Ordering Information

2, 11

3

5/10

Corrected letter grades in EC table headings

13–17


Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

26 Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

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ICL7611ACPA ICL7611ACPA+ ICL7611ACSA ICL7611BCPA+ ICL7611BCSA ICL7611BCSA+ ICL7611BCSA+T ICL7611DCPA ICL7611DCPA+ ICL7611DCSA ICL7611DCSA+ ICL7611DCSA+T ICL7611DESA ICL7611DESA+ ICL7611DESA+T ICL7612ACPA ICL7612ACSA ICL7612ACSA+ ICL7612ACSA+T ICL7612BCPA ICL7612BCSA ICL7612BCSA+ ICL7612BCSA+T ICL7612BESA ICL7612BESA+ ICL7612BESA+T ICL7612DCSA ICL7612DCSA+

ICL7612DCSA+T ICL7612DESA ICL7612DESA+ ICL7612DESA+T ICL7614ACSA ICL7614DCPA+ ICL7616ACSA ICL7621ACPA ICL7621ACPA+ ICL7621ACSA ICL7621ACSA+ ICL7621ACSA+T ICL7621BCPA+

ICL7621BCSA+T ICL7621DCPA ICL7621DCPA+ ICL7621DCSA ICL7621DCSA+T ICL7621DESA ICL7621DESA+ ICL7621DESA+T ICL7622BCPD+ ICL7622DCPD+ ICL7631BCPE ICL7631CCPE ICL7631CCSE ICL7631ECSE ICL7631ECSE+ ICL7631ECSE+T ICL7641BCPD ICL7641BCPD+ ICL7641BCWE+ ICL7641BCWE+T ICL7641CCPD ICL7641CCPD+ ICL7641CCWE+ ICL7641CCWE+T ICL7641ECWE+ ICL7641ECWE+T ICL7642BCPD+ ICL7642BCWE+ ICL7642BCWE+T ICL7642CCPD ICL7642CCPD+ ICL7642ECPD+ ICL7614ACPA+ ICL7611ACSA-T ICL7631CCSE-T ICL7611BCSA-T ICL7611DCSA-T ICL7611DESA-T ICL7612ACSA-T ICL7612BCSA-T ICL7612BESA-T ICL7612DCSA-T ICL7612DESA-T ICL7621ACSA-T ICL7621DCSA-T ICL7621DESA-T ICL7631ECSE-T ICL7621BCSA+ ICL7621DCSA+ ICL7641ECPD+ ICL7614ACPA ICL7614DCPA ICL7614DCSA ICL7616ACSA-T MAX9265GCM/V+ MAX9265GCM/V+T ICL7642CCWE-T ICL7622ACPD+ ICL7621BESA+