General Description

The MAX4464/MAX4470/MAX4471/MAX4472/MAX4474

family of micropower op amps operate from a single

+1.8V to +5.5V supply and draw only 750nA of supply

current. The MAX4470 family feature ground-sensing

current, low-operating voltage, and rail-to-rail output

capabilities make these operational amplifiers ideal for

use in single lithium ion (Li+), or two-cell NiCd or alka-

line battery systems.

The rail-to-rail output stage of the MAX4464/MAX4470/

MAX4471/MAX4472/MAX4474 amplifiers is capable of

driving the output voltage to within 4mV of the rail with a

100k

Ω load, and can sink and source 11mA with a +5V

supply. These amplifiers are available in both fully com-

pensated and decompensated versions. The single

MAX4470, dual MAX4471, and the quad MAX4472 are

unity-gain stable. The single MAX4464 and the dual

MAX4474 are stable for closed-loop gain configurations

of

≥ +5V/V. These amplifiers are available in space-sav-

ing SC70, SOT23, µMAX, and TSSOP packages.

Applications

Features

o Ultra-Low 750nA Supply Current Per Amplifier

o Ultra-Low +1.8V Supply Voltage Operation

o Ground-Sensing Input Common-Mode Range

o Outputs Swing Rail-to-Rail

o Outputs Source and Sink 11mA of Load Current

o No Phase Reversal for Overdriven Inputs

o High 120dB Open-Loop Voltage Gain

o Low 500µV Input Offset Voltage

o 9kHz Gain-Bandwidth Product

(MAX4470/MAX4471/MAX4472)

o 40kHz Gain-Bandwidth Product

(MAX4464/MAX4474)

o 250pF (min) Capacitive Load Capability

o Available in Tiny 5-Pin SC70 and 8-Pin SOT23

Packages

Single/Dual/Quad, +1.8V/750nA, SC70,

Rail-to-Rail Op Amps

________________________________________________________________ Maxim Integrated Products

1

OUT

IN-

15

IN+

MAX4470

MAX4464

SC70/SOT23

TOP VIEW

2

34

Pin Configurations

PART

NO. OF

AMPLIFIERS

GAIN-

BANDWIDTH

MINIMUM

STABLE GAIN

MAX4464

1

40kHz

5V/V

MAX4470

1

9kHz

1V/V

MAX4471

2

9kHz

1V/V

MAX4472

4

9kHz

1V/V

MAX4474

2

40kHz

5V/V

19-2021; Rev 2; 2/03

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

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

PART

TEMP.

RANGE

PIN-

PACKAGE

TOP

MARK

MAX4464EXK-T

-40

°C to +85°C

5 SC70-5

ABT

MAX4464EUK-T

-40

°C to +85°C

5 SOT23-5

ADPI

MAX4470EXK-T

-40

°C to +85°C

5 SC70-5

ABS

MAX4470EUK-T

-40

°C to +85°C

5 SOT23-5

ADPH

MAX4471EKA-T

-40

°C to +85°C

8 SOT23-8

AAEK

MAX4471ESA

-40

°C to +85°C

8 SO

—

MAX4472EUD

-40

°C to +85°C

14 TSSOP

—

MAX4472ESD

-40

°C to +85°C

14 SO

—

MAX4474EKA-T

-40

°C to +85°C

8 SOT23-8

AAEL

MAX4474EUA

-40

°C to +85°C

8 µMAX

—

MAX4474ESA

-40

°C to +85°C

8 SO

—

Pin Configurations continued at end of data sheet.

Selector Guide

Battery-Powered

Systems

Portable Instrumentation

Pagers and Cellphones

Micropower

Thermostats

Electrometer Amplifiers

Solar-Powered Systems

Remote Sensor Active

Badges

pH Meters