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

inputs and rail-to-rail output. The ultra-low supply cur-

rent, low-operating voltage, and rail-to-rail output capa-

bilities make these operational amplifiers ideal for use

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

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-

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, 6-Bump WLP, 5-Pin SC70, and

8-Pin SOT23 Packages

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

Rail-to-Rail Op Amps

________________________________________________________________

Maxim Integrated Products

1

MAX4470

WLP BUMP

SIDE DOWN

OUT

N.C.

IN-

IN+

C1

C2

B1

B2

A2

A1

+

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 4; 7/11

Ordering Information

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

PART

TEMP

RANGE

PIN-

PACKAGE

TOP

MARK

MAX4464EXK+T

-40

°C to +85°C

5 SC70

+ABT

MAX4464EUK+T

-40

°C to +85°C

5 SOT23

+ADPI

MAX4470EXK+T

-40

°C to +85°C

5 SC70

+ABS

MAX4470EUK+T

-40

°C to +85°C

5 SOT23

+ADPH

MAX4470EWT+

-40

°C to +85°C

6 WLP

+BP

MAX4471EKA+T

-40

°C to +85°C

8 SOT23

+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

+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

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.

+

Denotes a lead(Pb)-free/RoHS-compliant package.