MAXIM MAX4230, MAX4234 Technical data

General Description

The MAX4230–MAX4234 single/dual/quad, high-output­drive CMOS op amps feature 200mA of peak output
current, rail-to-rail input, and output capability from a
single 2.7V to 5.5V supply. These amplifiers exhibit a
high slew rate of 10V/µs and a gain-bandwidth product
(GBWP) of 10MHz. The MAX4230–MAX4234 can drive
typical headset levels (32Ω), as well as bias an RF
power amplifier (PA) in wireless handset applications.

The MAX4230 comes in a tiny 5-pin SC70 package and
the MAX4231, single with shutdown, is offered in the
6-pin SC70 package and a 1.5mm x 1.0mm x 0.5mm
ultra-thin µDFN package. The dual op-amp MAX4233 is
offered in the space-saving 10-bump chip-scale pack­age (UCSP™), providing the smallest footprint area for
a dual op amp with shutdown.

These op amps are designed to be part of the PA con­trol circuitry, biasing RF PAs in wireless headsets. The
MAX4231/MAX4233 offer a SHDN feature that drives
the output low. This ensures that the RF PA is fully dis­abled when needed, preventing unconverted signals to
the RF antenna.

The MAX4230 family offers low offsets, wide bandwidth,
and high-output drive in a tiny 2.1mm x 2.0mm space­saving SC70 package. These parts are offered over the
automotive temperature range (-40°C to +125°C).

Applications

RF PA Biasing Controls in Handset Applications

Portable/Battery-Powered Audio Applications
Portable Headphone Speaker Drivers (32Ω)

Audio Hands-Free Car Phones (Kits)

Laptop/Notebook Computers/TFT Panels

Sound Ports/Cards

Set-Top Boxes

Digital-to-Analog Converter Buffers

Transformer/Line Drivers

Motor Drivers

Features

♦ 30mA Output Drive Capability

♦ Rail-to-Rail Input and Output

♦ 1.1mA Supply Current per Amplifier

♦ 2.7V to 5.5V Single-Supply Operation

♦ 10MHz Gain-Bandwidth Product

♦ High Slew Rate: 10V/µs

♦ 100dB Voltage Gain (R

L

= 100kΩ)

♦ 85dB Power-Supply Rejection Ratio

♦ No Phase Reversal for Overdriven Inputs

♦ Unity-Gain Stable for Capacitive Loads to 780pF

♦ Low-Power Shutdown Mode Reduces Supply

Current to < 1µA

♦ Available in 5-Pin SC70 Package (MAX4230)

and 6-Pin Thin µDFN Package (MAX4231)

♦ Available in 10-Bump UCSP Package (MAX4233)

MAX4230–MAX4234

High-Output-Drive, 10MHz, 10V/µs,

Rail-to-Rail I/O Op Amps with Shutdown in SC70

________________________________________________________________ Maxim Integrated Products 1

19-2164; Rev 7; 7/08

Ordering Information continued at end of data sheet.

Selector Guide appears at end of data sheet.
Pin Configurations appear at end of data sheet.

UCSP is a trademark of Maxim Integrated Products, Inc.

Ordering Information

PART

PIN-

TOP

M ARK

MAX4230AXK-T

5 SC70 ACS

MAX4230AUK-T

5 SOT23

ABZZ

MAX4231AXT-T

6 SC70 ABA

MAX4231AUT-T

6 SOT23

AAUV

MAX4231AYT+TG65

6 µDFN +AI

+Denotes a lead-free/RoHS-compliant package.

T = Tape and reel.

Typical Operating Circuit

MAX4231

DAC

PA

2.7V TO 5.5V

R

ISO

ANTENNA

I

OUT

= 30mA

C

LOAD

C

RR

F

SHDN

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.

TEMP RANGE

-40°C to +125°C

-40°C to +125°C

-40°C to +125°C

-40°C to +125°C

-40°C to +125°C

PACKAGE

MAX4230–MAX4234

High-Output-Drive, 10MHz, 10V/µs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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.

Supply Voltage (VDDto VSS)....................................................6V

All Other Pins ....................................(V

SS

- 0.3V) + (VDD+ 0.3V)

Output Short-Circuit Duration to V

DD

or VSS(Note 1) ................10s

Continuous Power Dissipation (T

A

= +70°C)

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

5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW

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

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

6-Pin µDFN (derate 2.1mW/°C above +70°C) .........170.2mW

8-Pin SOT23 (derate 8.9mW/°C above +70°C) ...........714mW

8-Pin µMAX

®

(derate 4.5mW/°C above +70°C) ..........362mW

10-Pin µMAX (derate 5.6mW/°C above +70°C) ..........444mW

10-Bump UCSP (derate 6.1mW/°C above +70°C) .....484mW

10-Pin TDFN (derate 24.4mW°C above +70°C) ........1951mW

14-Pin SO (derate 8.3mW/°C above +70°C) ...............667mW

Operating Temperature Range .........................-40°C to +125°C

Junction Temperature......................................................+150°C

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

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

Note 1: Package power dissipation should also be observed.

PARAMETER

CONDITIONS

UNITS

Operating Supply Voltage Range

V

DD

Inferred from PSRR test 2.7 5.5 V

Input Offset Voltage V

OS

±6mV

Input Bias Current I

B

VCM = VSS to V

DD

50 pA

Input Offset Current I

OS

VCM = VSS to V

DD

50 pA

Input Resistance R

IN

MΩ

Common-Mode Input Voltage
Range

V

CM

Inferred from CMRR test V

SS

V

Common-Mode Rejection Ratio CMRR VSS < VCM < V

DD

52 70 dB

Power-Supply Rejection Ratio PSRR VDD = 2.7V to 5.5V 73 85 dB

Shutdown Output Impedance R

OUT

V

SHDN

= 0V (Note 3) 10 Ω

Output Voltage in Shutdown

)

V

SHDN

= 0V, R

L

= 200Ω (Note 3) 68 120 mV

RL = 100kΩ

RL = 2kΩ 85 98Large-Signal Voltage Gain A

VOL

< VDD - 0.20V

R

L

= 200Ω 74 80

dB

VDD - V

OH

RL = 32Ω

V

OL

- V

SS

500

VDD - V

OH

80 120

RL = 200Ω

V

OL

- V

SS

70 120

VDD - V

OH

814

Output Voltage Swing V

OUT

R

L

= 2kΩ

V

OL

- V

SS

714

mV

VDD = 2.7V, VIN = ±100mV 70

Output Source/Sink Current I

OUT

VDD = 5V, VIN = ±100mV

mA

VDD - V

OH

200

VOL - V

SS

175

VDD - V

OH

320

Output Voltage

VDD = 5V

V

OL

- V

SS

300

mV

DC ELECTRICAL CHARACTERISTICS

(VDD= 2.7V, VSS= 0V, VCM= VDD/2, V

OUT

= (VDD/2), RL= ∞ connected to (VDD/2), V

SHDN

= VDD, TA= +25°C, unless otherwise

noted.) (Note 2)

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

SYMBOL

MIN TYP MAX

0.85

1000

V

OUT(SHDN

100

VSS + 0.20V < V

OUT

400 500

360

200

128

112

240

224

IL = 10mA VDD = 2.7V

IL = 30mA

V

DD

MAX4230–MAX4234

High-Output-Drive, 10MHz, 10V/µs,

Rail-to-Rail I/O Op Amps with Shutdown in SC70

_______________________________________________________________________________________ 3

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

VDD = 5.5V, VCM = VDD / 2 1.2 2.3

Quiescent Supply Current (per
Amplifier)

I

DD

VDD = 2.7V, VCM = VDD / 2 1.1 2.0

mA

VDD = 5.5V 0.5 1

Shutdown Supply Current (per
Amplifier) (Note 3)

)

V

S HDN

= 0V, RL = ∞

V

DD

= 2.7V 0.1 1

µA

Shutdown mode V

SS

+ 0.3

SHDN Logic Threshold (Note 3)

Normal mode

V

SHDN Input Bias Current VSS < V

S HDN

< VDD (Note 3) 50 pA

)

DC ELECTRICAL CHARACTERISTICS (continued)

(VDD= 2.7V, VSS= 0V, VCM= VDD/2, V

OUT

= (VDD/2), RL= ∞ connected to (VDD/2), V

SHDN

= VDD, TA= +25°C, unless otherwise

noted.) (Note 2)

DC ELECTRICAL CHARACTERISTICS

(VDD= 2.7V, VSS= 0V, VCM= VDD/2, V

OUT

= (VDD/2), RL= ∞ connected to (VDD/2), V

SHDN

= VDD, TA= -40 to +125°C, unless oth-

erwise noted.) (Note 2)

I

DD(SHDN

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Operating Supply Voltage Range V

Input Offset Voltage V
Offset-Voltage Tempco ΔV

Common-Mode Input Voltage Range V

DD

OS

OS

CM

Inferred from PSRR test 2.7 5.5 V

/ΔT ±3 µV/°C

Inferred from CMRR test V

VDD - 0.3

SS

±8mV

V

DD

V

Common-Mode Rejection Ratio CMRR VSS < VCM < V

Power-Supply Rejection Ratio PSRR VDD = 2.7V to 5.5V 70 dB

Output Voltage in Shutdown V

OUT(SHDN

Large-Signal Voltage Gain A

Output Voltage Swing V

Output Voltage

46 dB

VOL

OUT

DD

V

< 0V, RL = 200Ω (Note 3) 150 mV

SHDN

VSS + 0.2V < VDD - 0.2V

RL = 32Ω, TA = +85°C

RL = 200Ω

RL = 2kΩ

IL = 10mA VDD = 2.7V

I

= 30mA,

L

T

= -40°C

A

V

= 5V

DD

to +85°C

RL = 2kΩ 76

R

= 200Ω 67

L

VDD - V

OH

- V

V

OL

SS

VDD - V

OH

- V

V

OL

SS

VDD - V

OH

- V

V

OL

SS

VDD - V

OH

- V

V

OL

SS

VDD - V

OH

- V

V

OL

SS

650

650

150

150

20

20

250

230

400

370

dB

mV

mV

MAX4230–MAX4234

High-Output-Drive, 10MHz, 10V/µs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70

4 _______________________________________________________________________________________

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Gain-Bandwidth Product GBWP VCM = VDD/2 10

MHz

Full-Power Bandwidth FPBW V

OUT

= 2V

P-P

, VDD = 5V 0.8

MHz

Slew Rate SR 10

V/µs

Phase Margin PM 70

Degrees

Gain Margin GM 15 dB

Total Harmonic Distortion Plus
Noise

f = 10kHz, V

OUT

= 2V

P-P

, A

VCL

= 1V/V

%

Input Capacitance C

IN

8pF

f = 1kHz 15

Voltage-Noise Density e

n

f = 10kHz 12

nV/√Hz

Channel-to-Channel Isolation f = 1kHz, RL = 100kΩ 125 dB

Capacitive-Load Stability A

VCL

= 1V/V, no sustained oscillations 780 pF

Shutdown Time t

SHDN

(Note 3) 1 µs

Enable Time from Shutdown

(Note 3) 1 µs

Power-Up Time t

ON

5µs

Note 2: All units 100% tested at +25°C. All temperature limits are guaranteed by design.
Note 3: SHDN logic parameters are for the MAX4231/MAX4233 only.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

VDD = 5.5V, VCM = VDD/2 2.8

Quiescent Supply Current
(per Amplifier)

I

DD

VDD = 2.7V, VCM = VDD/2 2.5

mA

VDD = 5.5V 2.0

Shutdown Supply Current
(per Amplifier) (Note 3)

)

V

SHDN

< 0V, RL = ∞

V

DD

= 2.7V 2.0

µA

DC ELECTRICAL CHARACTERISTICS (continued)

(VDD= 2.7V, VSS= 0V, VCM= VDD/2, V

OUT

= (VDD/2), RL= ∞ connected to (VDD/2), V

SHDN

= VDD, TA= -40 to +125°C, unless oth-

erwise noted.) (Note 2)

AC ELECTRICAL CHARACTERISTICS

(VDD= 2.7V, VSS= 0V, VCM= VDD/2, V

OUT

= (VDD/2), RL= ∞ connected to (VDD/2), V

SHDN

= VDD, TA= +25°C, unless otherwise noted.)

(Note 2)

I

DD(SHDN

THD+N

t

ENABLE

0.0005

MAX4230–MAX4234

High-Output-Drive, 10MHz, 10V/µs,

Rail-to-Rail I/O Op Amps with Shutdown in SC70

_______________________________________________________________________________________ 5

GAIN AND PHASE vs. FREQUENCY

FREQUENCY (Hz)

0.01k 10k 100k 1M 10M0.1k 1k 100M

GAIN (dB)

70

-30

-20

-10

0

10

20

30

60

50

40

-180

PHASE (DEGREES)

120

-150

-120

-90

-60

-30

0

90

60

30

MAX4230 toc01

A

V

= 1000V/V

GAIN AND PHASE vs. FREQUENCY

(C

L

= 250pF)

FREQUENCY (Hz)

0.01k 10k 100k 1M 10M0.1k 1k 100M

GAIN (dB)

70

-30

-20

-10

0

10

20

30

60

50

40

-180

PHASE (DEGREES)

120

-150

-120

-90

-60

-30

0

90

60

30

MAX4230 toc02

A

V

= 1000V/V

C

L

= 250pF

0

0.4

0.2

0.8

0.6

1.2

1.0

1.4

1.8

1.6

2.0

-40 0 20 40-20 60 80 100 120

SUPPLY CURRENT vs. TEMPERATURE

MAX4230 toc05

TEMPERATURE (°C)

SUPPLY CURRENT (mA)

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

FREQUENCY (Hz)

0.01k 10k 100k 1M0.1k 1k 10M

MAX4230 toc03

PSRR (dB)

0

-100

-90

-80

-70

-60

-50

-40

-10

-20

-30

A

V

= 1V/V

1000

100

10

1

0.1

0.01
1k 100k 1M10k 10M

OUTPUT IMPEDANCE vs. FREQUENCY

MAX4230 toc04

FREQUENCY (Hz)

OUTPUT IMPEDANCE (Ω)

A

V

= 1V/V

50

60

70

80

90

100

110

-40 0-20 20 40 60 80 100 120

MAX4230 toc06

TEMPERATURE (°C)

SUPPLY CURRENT (nA)

SUPPLY CURRENT vs. TEMPERATURE

(SHDN = LOW)

SHDN = V

SS

__________________________________________Typical Operating Characteristics

(VDD= 2.7V, VSS= 0V, VCM= VDD/2, V

OUT

= VDD/2, RL= ∞, connected to VDD/2, V

SHDN

= VDD, TA = +25°C, unless otherwise noted.)

MAX4230–MAX4234

High-Output-Drive, 10MHz, 10V/µs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70

6 _______________________________________________________________________________________

0

0.6

0.4

0.2

1.0

0.8

1.8

1.6

1.4

1.2

2.0

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

MAX4230 toc07

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (mA)

SUPPLY CURRENT PER AMPLIFIER

vs. SUPPLY VOLTAGE

-40 0-20 20 40 60 80 100 120

MAX4230 toc08

TEMPERATURE (°C)

-2

-1

0

1

2

V

OS

(mV)

INPUT OFFSET VOLTAGE

vs. TEMPERATURE

VDD = 5.0V

VDD = 2.7V

0

20

40

60

80

100

-40 0-20

20

40 60 80

100

120

OUTPUT SWING HIGH

vs. TEMPERATURE

MAX4230/34 toc09

TEMPERATURE (°C)

V

DD

- V

OUT

(mV)

V

DD

= 2.7V

R

L

= 200Ω

V

DD

= 5.0V

R

L

= 200Ω

0

40

20

80

60

120

100

140

-40 0 20-20 40 60 80 100 120

OUTPUT SWING LOW

vs. TEMPERATURE

MAX4230/3 toc10

TEMPERATURE (°C)

V

OUT

- V

SS

(mV)

V

DD

= 2.7V

R

L

= 200Ω

V

DD

= 5.0V

R

L

= 200Ω

0.2

0.8

0.6

0.4

1.0

1.2

1.4

02.01.50.5 1.0 2.5 3.0 3.5 4.0 4.5 5.0

SUPPLY CURRENT PER AMPLIFIER

vs. COMMON-MODE VOLTAGE

MAX4230/34 toc13

COMMON-MODE VOLTAGE (V)

SUPPLY CURRENT (mA)

VDD = 5.0V

-2.0

-1.0

-1.5

-0.5

0.5

0

1.0

0 0.5 1.0

1.5

2.0 2.5

INPUT OFFSET VOLTAGE

vs. COMMON-MODE VOLTAGE

MAX4230/3 toc11

COMMON-MODE VOLTAGE (V)

INPUT OFFSET VOLTAGE (mV)

0.2

0.6

0.4

1.0

0.8

1.2

0 0.5 1.0

1.5

2.0 2.5

SUPPLY CURRENT PER AMPLIFIER

vs. COMMON-MODE VOLTAGE

MAX4230/3 toc12

COMMON-MODE VOLTAGE (V)

SUPPLY CURRENT (mA)

V

DD

= 2.7V

0.45

10 100 1k 10k 100k

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. FREQUENCY

0.05

MAX4230/34 toc14

FREQUENCY (Hz)

THD+N (%)

0.15

0.25

0.35

0.30

0.20

0.10

0

0.40

RL = 32Ω

V

OUT

= 2V

P-P

500kHz LOWPASS FILTER

RL = 10kΩ

TOTAL HARMONIC DISTORTION PLUS NOISE

vs. PEAK-TO-PEAK OUTPUT VOLTAGE

MAX4230/34 toc15

PEAK-TO-PEAK OUTPUT VOLTAGE (V)

THD+N (%)

10

0.0001

4.0 4.2 4.6 5.0

0.001

0.1

1

4.4

4.8

RL = 2kΩ

RL = 250Ω

RL = 25Ω

RL = 100kΩ

f = 10kHz
V

DD

= 5V

____________________________Typical Operating Characteristics (continued)

(VDD= 2.7V, VSS= 0V, VCM= VDD/2, V

OUT

= VDD/2, RL= ∞, connected to VDD/2, V

SHDN

= VDD, TA = +25°C, unless otherwise noted.)

MAX4230–MAX4234

High-Output-Drive, 10MHz, 10V/µs,

Rail-to-Rail I/O Op Amps with Shutdown in SC70

_______________________________________________________________________________________ 7

400ns/div

SMALL-SIGNAL TRANSIENT
RESPONSE (NONINVERTING)

IN

50mV/div

MAX4230/34 toc16

OUT

400ns/div

SMALL-SIGNAL TRANSIENT

RESPONSE (INVERTING)

IN

50mV/div

MAX4230/34 toc17

OUT

400ns/div

LARGE-SIGNAL TRANSIENT

RESPONSE (NONINVERTING)

IN

1V/div

MAX4230/34 toc18

OUT

400ns/div

LARGE-SIGNAL TRANSIENT

RESPONSE (INVERTING)

IN

1V/div

MAX4230/34 toc19

OUT

0

50

150

100

200

250

2.0 3.02.5 3.5 4.0 4.5 5.0

OUTPUT CURRENT vs. OUTPUT VOLTAGE

(SOURCING, V

DD

= 5.0V)

MAX4230/34 toc22

OUTPUT VOLTAGE (V)

OUTPUT CURRENT (mA)

V

DIFF

= 100mV

0

20

10

30

60

70

50

40

80

1.0 1.4 1.6 1.8 2.01.2 2.2 2.4 2.6 2.8 3.0

OUTPUT CURRENT vs. OUTPUT VOLTAGE

(SOURCING, V

DD

= 2.7V)

MAX4230/34 toc20

OUTPUT VOLTAGE (V)

OUTPUT CURRENT (mA)

V

DIFF

= 100mV

-80

-60

-70

-40

-50

-30

-20

-10

0

0 0.4 0.60.2 0.8 1.0 1.2 1.4 1.6

OUTPUT CURRENT vs. OUTPUT VOLTAGE

(SINKING, V

DD

= 2.7V)

MAX4230/34 toc21

OUTPUT VOLTAGE (V)

OUTPUT CURRENT (mA)

V

DIFF

= 100mV

-250

-200

-100

-150

-50

0

0 1.00.5 1.5 2.0 2.5 3.0

OUTPUT CURRENT vs. OUTPUT VOLTAGE

(SINKING, V

DD

= 5.0V)

MAX4230/34 toc23

OUTPUT VOLTAGE (V)

OUTPUT CURRENT (mA)

V

DIFF

= 100mV

200
100

10

100 10k 100k

FREQUENCY (Hz)

INPUT VOLTAGE NOISE (nV/√Hz)

1k

INPUT VOLTAGE NOISE

vs. FREQUENCY

MAX4230/34 toc24

____________________________Typical Operating Characteristics (continued)

(VDD= 2.7V, VSS= 0V, VCM= VDD/2, V

OUT

= VDD/2, RL= ∞, connected to VDD/2, V

SHDN

= VDD, TA = +25°C, unless otherwise noted.)

MAX4230–MAX4234

Detailed Description

Rail-to-Rail Input Stage

The MAX4230–MAX4234 CMOS operational amplifiers
have parallel-connected n- and p-channel differential
input stages that combine to accept a common-mode
range extending to both supply rails. The n-channel
stage is active for common-mode input voltages typi­cally greater than (VSS+ 1.2V), and the p-channel
stage is active for common-mode input voltages typi­cally less than (VDD- 1.2V).

Applications Information

Package Power Dissipation

Warning: Due to the high output current drive, this op
amp can exceed the absolute maximum power-dissi­pation rating. As a general rule, as long as the peak cur-

rent is less than or equal to 40mA, the maximum package

power dissipation is not exceeded for any of the package
types offered. There are some exceptions to this rule,
however. The absolute maximum power-dissipation rating
of each package should always be verified using the fol­lowing equations. The equation below gives an approxi­mation of the package power dissipation:

where:

V

RMS

= RMS voltage from VDDto V

OUT

when sourcing

current and RMS voltage from V

OUT

to V

SS

when sink-

ing current.

I

RMS

= RMS current flowing out of or into the op amp

and the load.
θ = phase difference between the voltage and the cur-

rent. For resistive loads, COS θ = 1.

P V I COS

IC DISS RMS RMS

()

≅θ

High-Output-Drive, 10MHz, 10V/µs,
Rail-to-Rail I/O Op Amps with Shutdown in SC70

8 _______________________________________________________________________________________

PIN

M AX42 30

SOT 23 /

SC7 0

SOT 23 /

µ M A X

µ M A X/

T D FN

M AX42 33

U CSP

M AX42 34 T

SSO P/

SO

NAME FUNCTION

1 1 — — — — IN+ Noninverting Input

2 2 4 4 B4 11 V

SS

Negative Supply Input. Connect to
ground for single-supply operation.

3 3 — — — — IN- Inverting Input

4 4 — — — — OUT Amplifier Output

56 810B14VDDPositive Supply Input

— 5 — 5, 6 C4, A4 —

SHDN,

SHDN1,

SHDN2

Shutdown Control. Tie to high for normal
operation.

— — 3 3 C3 3 IN1+ Noninverting Input to Amplifier 1

— — 2 2 C2 2 IN1- Inverting Input to Amplifier 1

— — 1 1 C1 1 OUT1 Amplifier 1 Output

— — 5 7 A3 5 IN2+ Noninverting Input to Amplifier 2

— — 6 8 A2 6 IN2- Inverting Input to Amplifier 2

— — 7 9 A1 7 OUT2 Amplifier 2 Output

— — — — — 10, 12

Noninverting Input to Amplifiers 3 and 4

— — — — — 9, 13

Inverting Input to Amplifiers 3 and 4

— — — — — 8, 14

OUT3,

OUT4

Amplifiers 3 and 4 Outputs

Pin Description

M AX42 31

SC7 0/µD FN

M AX42 32

SOT 23 /

M A X4 2 3 3

IN3+, IN4+

IN3-, IN4-