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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.

Dual, 256-Tap, Volatile, Low-Voltage

Linear Taper Digital Potentiometer

19-5140; Rev 1; 4/10

Ordering Information

Functional Diagram

General Description

The MAX5387 dual, 256-tap, volatile, low-voltage lin-

ear taper digital potentiometer offers three end-to-end

resistance values of 10kI, 50kI, and 100kI. Operating

from a single +2.6V to +5.5V power supply, the device

provides a low 35ppm/NC end-to-end temperature coef-

The small package size, low supply operating voltage,

low supply current, and automotive temperature range

of the MAX5387 make the device uniquely suitable for

the portable consumer market, battery backup industrial

applications, and the automotive market.

The MAX5387 is specified over the automotive -40NC to

+125NC temperature range and is available in a 14-pin

TSSOP package.

Applications

Low-Voltage Battery Applications

Portable Electronics

Mechanical Potentiometer Replacement

Offset and Gain Control

Adjustable Voltage References/Linear Regulators

Automotive Electronics

Features

S

Dual, 256-Tap Linear Taper Positions

S

Single +2.6V to +5.5V Supply Operation

S

Low < 1µA Quiescent Supply Current

S

10kI, 50kI, 100kI End-to-End Resistance Values

S

S

Power-On Sets Wiper to Midscale

S

-40NC to + 125NC Operating Temperature Range

Note: All devices are specified over the -40NC to +125NC oper-

ating temperature range.

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

EVALUATION

KIT

AVAILABLE

PART

PIN-PACKAGE

END-TO-END

RESISTANCE (kI)

MAX5387LAUD+

14 TSSOP

10

MAX5387MAUD+

14 TSSOP

50

MAX5387NAUD+

14 TSSOP

100

LATCH

GND

256 DECODER

256 DECODER

WA

HA

LA

HB

WB

LB

LATCH

POR

SCL

SDA

A0

A1

A2

MAX5387