General Description

The single MAX4091, dual MAX4092, and quad

MAX4094 operational amplifiers combine excellent DC

output. Since the common-mode voltage extends from

gle supply (2.7V to 6V) or split supplies (±1.35V to

±3V). Each op amp requires less than 130µA of supply

current. Even with this low current, the op amps are

capable of driving a 1k

Ω load, and the input-referred

voltage noise is only 12nV/

√Hz. In addition, these op

amps can drive loads in excess of 2000pF.

The precision performance of the MAX4091/MAX4092/

MAX4094 combined with their wide input and output

dynamic range, low-voltage, single-supply operation,

and very low supply current, make them an ideal

choice for battery-operated equipment, industrial, and

data acquisition and control applications. In addition,

the MAX4091 is available in space-saving 5-pin SOT23,

8-pin µMAX, and 8-pin SO packages. The MAX4092 is

available in 8-pin µMAX and SO packages, and the

MAX4094 is available in 14-pin TSSOP and 14-pin SO

packages.

________________________Applications

Portable Equipment

Battery-Powered Instruments

Data Acquisition and Control

Low-Voltage Signal Conditioning

Features

o Low-Voltage, Single-Supply Operation (2.7V to 6V)

o Beyond-the-Rails™ Inputs

o No Phase Reversal for Overdriven Inputs

o 30µV Offset Voltage

o Rail-to-Rail Output Swing with 1kΩ Load

o Unity-Gain Stable with 2000pF Load

o 165µA (max) Quiescent Current Per Op Amp

o 500kHz Gain-Bandwidth Product

o High Voltage Gain (115dB)

o High Common-Mode Rejection Ratio (90dB) and

Power-Supply Rejection Ratio (100dB)

o Temperature Range (-40°C to +125°C)

Single/Dual/Quad, Micropower, Single-Supply,

Rail-to-Rail Op Amps

________________________________________________________________ Maxim Integrated Products

1

1

OUT

1

2

3

4

8

7

6

5

OUT2

IN2-

IN2+

IN1+

IN1-

OUT1

µMAX/SO

TOP VIEW

1

2

3

4

8

7

6

5

N.C.

OUT

N.C.

IN+

IN-

N.C.

µMAX/SO

5

4

IN-

3

IN+

2

SOT23

14

13

12

11

10

9

8

1

2

3

4

5

6

7

OUT4

IN4-

IN4+

IN1+

IN1-

OUT1

IN3+

IN3-

OUT3

OUT2

IN2-

IN2+

TSSOP/SO

4

MAX4091

MAX4091

MAX4092

MAX4094

Pin Configurations/Functional Diagrams

19-2272; Rev 0; 1/02

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

MAX4091AUK-T

-40°C to +125°C

5 SOT23-5

MAX4091ASA

-40°C to +125°C

8 SO

MAX4091AUA

-40°C to +125°C

8 µMAX

MAX4092ASA

-40°C to +125°C

8 SO

MAX4092AUA

-40°C to +125°C

8 µMAX

MAX4094AUD

-40°C to +125°C

14 TSSOP

MAX4094ASD

-40°C to +125°C

14 SO

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

Beyond-the-Rails is a trademark of Maxim Integrated Products, Inc.