19-0942; Rev 3; 5/10
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.
Pin-for-Pin Second Source
1pA Typical Bias Current—4nA (max) at +125°C
±1V to ±8V Wide Supply Voltage Range
Industry-Standard Pinouts
Programmable Quiescent Currents of 10µA, 100µA, and 1000µA
Monolithic, Low-Power CMOS Design
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) |
Typical Operating Circuit appears at end of data sheet.
Maxim Integrated Products 1
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 |
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
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)
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.
(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 |
(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 | % |
(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 |
(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 |
(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 |
(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 |
(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 |
(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.
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
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
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.
(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 |
(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 | % |
(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 |
(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 |
(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 |
(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 |
(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.
(TA = +25°C, unless otherwise noted.)
(TA = +25°C, unless otherwise noted.)
(TA = +25°C, unless otherwise noted.)
(TA = +25°C, unless otherwise noted.)
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.
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.
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 - + 1⁄2 + ICL7621 1⁄2 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 - 1⁄2 1.8k = 5% ICL7621 SCALE VOL ADJUST - COMMON + 1⁄2 ICL7621 |
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 1⁄2 ICL7622 A2 VOUT ICL7622 A1 IH5141 VIN CHOLD |
CINT 1F RIN VIN - VOUT + |
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.
CINT RIN VIN - VOUT + LONG TIME CONSTANT INTEGRATOR (Detailed Circuit Diagram — Figure 10) |
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 | |
8 PDIP | P8-1 | |
8 SO | S8-2 | |
8 CDIP | J16-3 | |
14 PDIP | P14-3 | |
14 CDIP | J14-3 | |
16 PDIP | P16-1 | |
16 SO | S16-1 | |
16 Wide SO | W16-2 |
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.
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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+