EVALUATION KIT AVAILABLE


MAX4480–MAX4483 Single/Dual/Quad, Low-Cost, Single-Supply,

Rail-to-Rail Op Amps with Shutdown


General Description

The MAX4480–MAX4483 low-cost, general-purpose op amps offer rail-to-rail outputs, draw only 50μA of quies- cent current, and operate from a single +2.5V to +5.5V supply. For additional power conservation, the MAX4481 offers a low-power shutdown mode that reduces supply current to 0.5μA (max) and puts the amplifier’s output in a high-impedance state. These devices are unity-gain stable with capacitive loads up to 400pF. The MAX4480– MAX4483 are specified to +125°C, making them suitable for use in a variety of harsh environments.

The MAX4480 is a single amplifier offered in a tiny 5-pin SC70 package. The MAX4481 is a single amplifier with a low-power shutdown mode that reduces supply current to < 0.5μA and comes in a 6-pin SC70 package. The MAX4482 is a dual amplifier and comes in the space-sav- ing 8-pin SOT23 or μMAX® package. The MAX4483 is a quad amplifier and comes in a 14-pin TSSOP package. All devices are specified for operation across the -40°C to

+125°C automotive temperature range.

Applications


Selector Guide


PART

NO. OF AMPLIFIERS PER PACKAGE

SHUTDOWN MODE

MAX4480

1

No

MAX4481

1

Yes

MAX4482

2

No

MAX4483

4

No


μMAX is a registered trademark of Maxim Integrated Products, Inc.


19-1809; Rev 4; 5/14

Features

Ordering Information


PART

TEMP RANGE

PIN- PACKAGE

TOP MARK

MAX4480AXK+T

-40°C to +125°C

5 SC70

ABU

MAX4480AUK+T

-40°C to +125°C

5 SOT23

ADPJ

MAX4481AXT+T

-40°C to +125°C

6 SC70

AAN

MAX4481AUT+T

-40°C to +125°C

6 SOT23

AAOS

MAX4481MXT/PR3+

-55°C to +110°C

6 SC70

AEE

MAX4482AKA+T

-40°C to +125°C

8 SOT23

AAEJ

MAX4482ASA+

-40°C to +125°C

8 SO

MAX4482AUA+

-40°C to +125°C

8 FMAX

MAX4483ASD+

-40°C to +125°C

14 SO

MAX4483AUD+

-40°C to +125°C

14 TSSOP

+Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel.

Pin Configurations


MAX4480

MAX4481


IN+ 1

+

5 VDD

IN+ 1

+

6 VDD


VSS 2

VSS 2

5 SHDN


IN- 3

4 OUT IN- 3

4 OUT


SC70-5/SOT23-5

SC70-6/SOT23-6

Pin Configurations continued at end of data sheet.


Absolute Maximum Ratings

Power-Supply Voltage (VDD to VSS).........................-0.3V to +6V

All Other Pins...................................(VSS - 0.3V) to (VDD + 0.3V)

Output Short-Circuit Duration

(OUT shorted to VSS or VDD).................................Continuous Continuous Power Dissipation (TA = +70°C)

5-Pin SC70 (derate 3.1mW/°C above +70°C)............. 247mW

6-Pin SC70 (derate 3.1mW/°C above +70°C)..............245mW

5-Pin SOT23 (derate 3.1mW/°C above +70°C)...........247mW

6-Pin SOT23 (derate 8.7mW/°C above +70°C)...........696mW

8-Pin SOT23 (derate 5.1mW/°C above +70°C)...........408mW


8-Pin μMAX (derate 4.5mW/°C above +70°C)............362mW

8-Pin SO (derate 5.9mW/°C above +70°C)................471mW

14-Pin TSSOP (derate 9.1mW/°C above +70°C).........727mW

14-Pin SO (derate 8.33mW/°C above +70°C).............667mW Operating Temperature Range .........................-40°C to +125°C Military Operating Temperature Range...............-55°C to +110°C Junction Temperature.........................................................150°C

Storage Temperature Range...............................-65°C to +150°C

Lead Temperature (soldering, 10s).................................+3000°C

Soldering Temperature (reflow)........................................+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.


Electrical Characteristics

(VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL ≥ 1MΩ connected to VDD/2, SHDN = VDD (MAX4481 only), TA = +25°C, unless

otherwise noted.)


PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage Range

VDD

Inferred from PSRR test

2.5


5.5

V


Supply Current per Amplifier

IDD

VDD = 2.5V

45


μA

VDD = 5.0V


50

100

Supply Current in Shutdown

ISHDN

SHDN = VSS (MAX4481 only)


0.05

0.5

μA

Input Offset Voltage

VOS



±1

±5.5

mV

Input Bias Current

IB

(Note 1)


±0.1

±100

pA

Input Offset Current

IOS

(Note 1)


±0.1

±100

pA

Input Resistance

RIN

Differential or common mode

1000

Input Common-Mode Voltage Range

VCM

Inferred from CMRR test

VSS


VDD - 1.3

V

Common-Mode Rejection Ratio

CMRR

VSS ≤ VCM ≤ VDD - 1.3V

71

86


dB

Power-Supply Rejection Ratio

PSRR

2.5V ≤ VDD ≤ 5.5V

82

92


dB


Large-Signal Voltage Gain


AVOL

VSS + 0.02V ≤ VOUT

≤ VDD - 0.03V

RL = 100kΩ

110


dB

VSS + 0.10V ≤ VOUT

≤ VDD - 0.20V

RL = 5kΩ

94

105



Output Voltage High

VOH

Specified as

VDD - VOUT

RL = 100kΩ

4


mV

RL = 5kΩ


80

150


Output Voltage Low

VOL

Specified as

VOUT - VSS

RL = 100kΩ

1


mV

RL = 5kΩ


8

30


Output Short-Circuit Current

ISC

Sourcing

3


mA

Sinking

17

Shutdown Mode Output Leakage

IOUTSHDN

Device in shutdown mode, SHDN = VSS, VSS < VOUT < VCC (MAX4481 only)


±0.01

±0.1

μA

SHDN Logic Low

VIL

MAX4481 only

0.3 x VDD

V

SHDN Logic High

VIH

MAX4481 only

0.7 x VDD

V

SHDN Input Current

IIL, IIH

SHDN = VDD or VSS (MAX4481 only)

±0.001

±1

±500

nA

Gain-Bandwidth Product

GBW


140

kHz


Electrical Characteristics (continued)

(VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL ≥ 1MΩ connected to VDD/2, SHDN = VDD (MAX4481 only), TA = +25°C, unless

otherwise noted.)


PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

Phase Margin

φM


70

degrees

Gain Margin



30

dB

Slew Rate

SR


80

V/ms

Input Voltage Noise Density

en

f = 10kHz

100

nV/√Hz

Input Current Noise Density

in

f = 10kHz

1

nV/√Hz

Capacitive-Load Stability

CLOAD

AV = +1V/V

400

pF

Shutdown Delay Time

tSHDN

MAX4481 only

0.4

μs

Enable Delay Time

tEN

MAX4481 only

12

μs

Power-On Time

tON


15

μs

Input Capacitance

CIN


2.0

pF


Total Harmonic Distortion


THD

f = 1kHz, VOUT = 2VP-P, AV = +1V/V

RL = 100kΩ


0.005


%

Settling Time to 0.1%

tS

VOUT = 2V step

50

μs

Electrical Characteristics

(VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL ≥ 1MΩ connected to VDD/2, SHDN = VDD (MAX4481 only), TA = -40°C to +125°C,

unless otherwise noted.)


PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

Supply Voltage Range

VDD

Inferred from PSRR test

2.5 5.5

V

Supply Current per Amplifier

IDD


120

μA

Supply Current in Shutdown

ISHDN

SHDN = VSS (MAX4481 only)

1.0

μA

Input Offset Voltage

VOS


9

mV

Input Offset Voltage Drift

TCVOS


±3

μV/°C

Input Bias Current

IB

(Note 1)

±100

pA

Input Offset Current

IOS

(Note 1)

±100

pA

Input Common-Mode Voltage Range

VCM

Inferred from CMRR test

VSS VDD -

1.4

V

Common-Mode Rejection Ratio

CMRR

VSS ≤ VCM ≤ VDD - 1.4V

67

dB

Power-Supply Rejection Ratio

PSRR

2.5V ≤ VDD ≤ 5.5V

77

dB


Shutdown Mode Output Leakage


IOUTSHDN

Device in shutdown mode, SHDN = VSS, VSS < VOUT < VCC

(MAX4481 only)

-40°C to +85°C

±0.5


μA

+85°C to +125°C

±2.5

SHDN Logic Low

VIL

MAX4481 only

0.3 x VDD

V

SHDN Logic High

VIH

MAX4481 only

0.7 x VDD

V

SHDN Input Current

IIL, IIH

SHDN = VDD or VSS (MAX4481 only)

1

µA

Large-Signal Voltage Gain

AVOL

VSS + 0.1V ≤ VOUT ≤ VDD - 0.20V, RL = 5kΩ

84

dB

Output Voltage High

VOH

Specified as VDD - VOUT, RL = 5kΩ

200

mV

Output Voltage Low

VOL

Specified as VOUT - VSS, RL = 5kΩ

50

mV

Note 1: Guaranteed by design.

Note 2: Specifications are 100% tested at TA = +25°C (exceptions noted). All temperature limits are guaranteed by design.


Typical Operating Characteristics

(VDD = +5V, VSS = 0V, VCM = VDD/2, VSHDN = 5V, RL ≥ 1MΩ connected to VDD/2, TA = +25°C, unless otherwise noted.)



80

60

GAIN (dB)/PHASE (degrees)

40

20

0

-20

-40

-60

-80

-100

-120

-140

-160

-180

GAIN AND PHASE

vs. FREQUENCY (NO LOAD)


AVCL = +1000V/V


80

MAX4480 toc01

60

GAIN (dB)/PHASE (degrees)

40

20

0

-20

-40

-60

-80

-100

-120

-140

-160

-180

GAIN AND PHASE

vs. FREQUENCY (CL = 400pF)


AVCL = +1000V/V


10


MAX4480 toc02

-10


PSRR (dB)

-30


-50


-70


-90


-110

POWER-SUPPLY REJECTION RATIO vs. FREQUENCY
















































































MAX4480 toc03

1 10

100

1k 10k

100k 1M

1 10

100 1k

10k

100k 1M

10 100

1k 10k 100k 1M


1000


OUTPUT IMPEDANCE (Ω)

100


10


1


0.1


0.01

FREQUENCY (Hz)


OUTPUT IMPEDANCE vs. FREQUENCY

FREQUENCY (Hz)


SUPPLY CURRENT vs. TEMPERATURE

MAX4480 toc4



























































































60

58

SUPPLY CURRENT (µA)

56

54

52

50

48

46

44

42

40


100k


MAX4480 toc05

SUPPLY CURRENT (pA)

10k


1k


100


10


1

FREQUENCY (Hz)

MAX4481 SHUTDOWN SUPPLY CURRENT

MAX4480 toc06

vs. TEMPERATURE


VSHDN = VSS














































1 10 100 1k 10k 100k 1M

-40

-20 0

20 40

60 80

100 120

-40

-20 0

20 40 60

80 100 120

FREQUENCY (Hz)

MAX4481

OUTPUT LEAKAGE CURRENT vs. TEMPERATURE

VSHDN = VSS VOUT = VDD/2











































1000k


100k


ILEAK (pA)

10k


1k


100


10


1500


MAX4480 toc07

1000


VOS (µV)

500


0


-500


-1000


-1500

TEMPERATURE (°C)


INPUT OFFSET VOLTAGE vs. TEMPERATURE


MAX4480 toc08
























































100


90


VDD - VOUT (mV)

80


70


60


50


40

TEMPERATURE (°C)


MAX4480 toc09

OUTPUT VOLTAGE SWING HIGH vs. TEMPERATURE


RL = 5kΩ to VDD/2























































-40

-20 0

20 40 60

80 100 120

-40

-20 0

20 40 60

80 100 120

-40

-20 0

20 40 60

80 100 120

TEMPERATURE (∞C)

TEMPERATURE (°C)

TEMPERATURE (°C)


Typical Operating Characteristics (continued)

(VDD = +5V, VSS = 0V, VCM = VDD/2, VSHDN = 5V, RL ≥ 1MΩ connected to VDD/2, TA = +25°C, unless otherwise noted.)


OUTPUT VOLTAGE SWING LOW vs. TEMPERATURE

RL = 5kΩ to VDD/2




























































11


10


VOUT - VSS (mV)

9


8


7


6


5


4


-80


MAX4480 toc10

-82


CMRR (dB)

-84


-86


-88


-90

COMMON-MODE REJECTION RATIO vs. TEMPERATURE


MAX4480 toc11














































130

125

120

115

GAIN (dB)

110

105

100

95

90

85

80

LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE


RL = 5kΩ to VDD/2













































































MAX4480 toc12

-40 -20 0 20 40 60 80 100 120

-40

-20 0 20 40 60 80 100 120

0.5

1.0

1.5 2.0 2.5 3.0 3.5

4.0 4.5


110


105


GAIN (dB)

100


95


90

TEMPERATURE (°C)

LARGE-SIGNAL GAIN vs. TEMPERATURE


MAX4480 toc13

RL = 5kΩ to VDD/2





































2.0

1.9

1.8

1.7

VDD (MIN)

1.6

1.5

1.4

1.3

1.2

1.1

1.0

TEMPERATURE (°C)

MINIMUM OPERATING VOLTAGE vs. TEMPERATURE


MAX4480 toc14

















































































100


10


THD + N (%)

1


0.1


0.01


0.001

VOUT (V)

MAX4480 toc15

TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY


RL = 5kΩ VOUT = 2VP-P AV = +1

BW = 30kHz

-40

-20 0

20 40 60

80 100 120

-40

-20 0

20 40 60

80 100 120

10 100 1k

10k 100k


100


10


THD + N (%)

1


0.1

TEMPERATURE (°C)

TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY


RL = 100kΩ VOUT = 2VP-P AV = +1

BW = 30kHz


100


MAX4480 toc16

10


THD + N (%)

1


0.1

TEMPERATURE (°C)

TOTAL HARMONIC DISTORTION PLUS NOISE vs. INPUT AMPLITUDE


RL = 5kΩ

f = 1kHz

BW = 22kHz


100


MAX4480 toc17

10


THD + N (%)

1


0.1

FREQUENCY (Hz)

MAX4480 toc18

TOTAL HARMONIC DISTORTION PLUS NOISE vs. INPUT AMPLITUDE


RL = 100kΩ

f = 1kHz

BW = 22kHz


0.01

0.01

0.01


0.001

10


100


1k FREQUENCY (Hz)


10k 100k

0.001

0


1 2

VIN (Vp-p)

0.001

3 0


0.5


1.0


1.5 2.0 2.5 3.0

VIN (Vp-p)


Typical Operating Characteristics (continued)

MAX4480 toc19

(VDD = +5V, VSS = 0V, VCM = VDD/2, VSHDN = 5V, RL ≥ 1MΩ connected to VDD/2, TA = +25°C, unless otherwise noted.)



CAPACITIVE-LOAD STABILITY

20

AV = +1V/V

TA = +25°C

RL // CL

CAPACITIVE LOAD (nF)

15

UNSTABLE REGION

10


5 STABLE

REGION

NONINVERTING SMALL-SIGNAL TRANSIENT RESPONSE



AV = 1V/V RL = 5kΩ

MAX4480 roc20

IN


50mV/div


OUT


0

1k 10k 100k RESISTIVE LOAD (Ω)

NONINVERTING LARGE-SIGNAL TRANSIENT RESPONSE


MAX4480 roc21

IN


1V/div


20µs/div


PERCENT OVERSHOOT vs. CAPACITIVE LOAD

MAX4480 toc22

25


POSITIVE

OVERSHOOT (%)

20 OVERSHOOT


15


10



AV = 1V/V RL = 5kΩ


100µs/div


OUT

5


0

0 100


200 300

MAX4480 toc23

CLOAD (pF)

NEGATIVE OVERSHOOT


400 500 600


CHANNEL-TO-CHANNEL ISOLATION (dB)

120

110

100

90

80

70

60

50

40

30

20

CHANNEL-TO-CHANNEL ISOLATION vs. FREQUENCY





































































































































SUPPLY CURRENT vs. SUPPLY VOLTAGE

MAX4480 toc24

60

VOUT = VDD/2

SUPPLY CURRENT (mA)

50


40


30


20


10


0

10 100 1k

10k 100k 1M

0 1 2 3

4 5 6

FREQUENCY (kHz) SUPPLY VOLTAGE (V)


Pin Description


PIN


NAME


FUNCTION

MAX4480

MAX4481

MAX4482

MAX4483

1

1

IN+

Noninverting Amplifier Input

3

3

INA+

Noninverting Amplifier Input A

5

5

INB+

Noninverting Amplifier Input B

10

INC+

Noninverting Amplifier Input C

12

IND+

Noninverting Amplifier Input D

2

2

4

11

VSS

Negative Supply. Connect to ground for single-supply

operation. Use a 0.01μF bypass capacitor to GND.

3

3

IN-

Inverting Amplifier Input

2

2

INA-

Inverting Amplifier Input A

6

6

INB-

Inverting Amplifier Input B

9

INC-

Inverting Amplifier Input C

13

IND-

Inverting Amplifier Input D

4

4

OUT

Amplifier Output

1

1

OUTA

Amplifier Output A

7

7

OUTB

Amplifier Output B

8

OUTC

Amplifier Output C

14

OUTD

Amplifier Output D

5

6

8

4

VDD

Positive Supply. Use a 0.01μF bypass capacitor to GND.

5

SHDN

Active-Low Shutdown Input. Connect to VDD for

normal operation. Do not leave floating.



1V/div


100µs/div

Detailed Description

Rail-to-Rail Output Stage

The MAX4480–MAX4483 can drive a 5kΩ load and still typically swing within 80mV of the supply rails. Figure 1 shows the MAX4480 output voltage swing configured with AV = +10V/V.

Driving Capacitive Loads

Driving a capacitive load can cause instability in many op amps, especially those with low quiescent current. The MAX4480–MAX4483 are unity-gain stable for a range of capacitive loads to above 400pF. Figure 2 shows the MAX4480 response with an excessive capacitive load. Adding a series resistor between the output and the load capacitor (Figure 3) improves the circuit’s response by

isolating the load capacitance from the op amp’s output. Figure 1. Rail-to-Rail Output Operation




50mV/div


20µs/div

RISO


MAX4480 MAX4481 MAX4482 MAX4483

CL


2V/div


400µs/div


CL = 1nF

Figure 2. Small-Signal Transient Response with Excessive Capacitive Load



RL = 10MΩ TO VSS, CL = 25pF


Figure 4. Shutdown Waveform

Figure 3. Capacitive-Load-Driving Circuit



VDD

2V/div


OUT

1V/div


4µs/div

Figure 5. Power-Up/Down Waveform


Applications Information

Shutdown Mode

The MAX4481 features a low-power shutdown mode. When SHDN goes low, the supply current drops to 0.05μA (typ) and the output enters a high-impedance state. Pull SHDN high to enable the amplifier. Do not leave SHDN floating. Figure 4 shows the shutdown waveform.

Power-Up

The MAX4480–MAX4483 outputs typically settle within 50μs after power-up. Figure 5 shows the output voltage on power-up and power-down.


Power Supplies and Layout

The MAX4480–MAX4483 operate from a single +2.5V to +5.5V power supply. Bypass the power supply with a 0.1μF capacitor to ground.

Good layout techniques optimize performance by decreasing the amount of stray capacitance at the op amp’s inputs and outputs. To decrease stray capacitance, minimize trace lengths by placing external components close to the op amp’s pins.

Chip Information

PROCESS: BiCMOS


8 VDD

Pin Configurations (continued)


MAX4483


OUTA 1

+

14 OUTD


OUTA 1

+

MAX4482

INA- 2

13 IND-


INA+ 3

12 IND+


INA- 2

7 OUTB


VDD 4

11 VSS


INA+ 3

6 INB-


INB+ 5

10 INC+


VSS 4

5 INB+


SOT23/SO/µMAX

INB- 6

9 INC-


OUTB 7

8 OUTC


TSSOP/SO


Package Information

For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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

OUTLINE NO.

LAND PATTERN NO.

5 SC70

X5+1

21-0076

90-0188

5 SOT23

U5+1

21-0057

90-0174

6 SC70

X6SN+1

21-0077

90-0189

6 SOT23

U6SN+1

21-0058

90-0175

8 SOT23

K8+5

21-0078

90-0176

8 SO

S8+2

21-0041

90-0096

8 µMAX

U8+1

21-0036

90-0092

14 TSSOP

U14+1

21-0066

90-0113

14 SO

S14+1

21-0041

90-0112


Revision History


REVISION NUMBER

REVISION DATE


DESCRIPTION

PAGES CHANGED

0

10/00

Initial release

1

1/01

Released MAX4481, revised Electrical Characteristics and Figures 2 and 4.

1, 2, 3, 8

2

10/12

Added MAX4481MXT/PR2-W and lead-free notation to Ordering Information. Revised

Absolute Maximum Ratings with military temp range.

1, 2

3

4/13

Removed –W from MAX4481MXT/PR2 in Ordering Information and revised Absolute Maximum Ratings and updated to MAX4481MXT/PR3+.

1, 2

4

5/14

Removed automotive reference from General Description

1


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


Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.

Mouser Electronics


Authorized Distributor


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Maxim Integrated:

MAX4480AUK+T MAX4480AXK+T MAX4481AUT+T MAX4481AUT-T MAX4481AXT+T MAX4481AXT-T MAX4482AKA+T MAX4482ASA+ MAX4482ASA+T MAX4482AUA+ MAX4482AUA+T MAX4483ASD+ MAX4483ASD+T MAX4483AUD+ MAX4483AUD+T