MAX5489 Maxim Integrated Products, MAX5489 Datasheet

MAX5489

Manufacturer Part Number

MAX5489

Description

(MAX5487 - MAX5489) Linear-Taper Digital Potentiometers

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX5489.pdf (14 pages)

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The MAX5487/MAX5488/MAX5489 dual, linear-taper,

digital potentiometers function as mechanical poten-

tiometers with a simple 3-wire SPI™-compatible digital

interface that programs the wipers to any one of 256

tap positions. These digital potentiometers feature a

nonvolatile memory (EEPROM) to return the wipers to

their previously stored positions upon power-up.

The MAX5487 has an end-to-end resistance of 10kΩ,

while the MAX5488 and MAX5489 have resistances of

50kΩ and 100kΩ, respectively. These devices have a

low 35ppm/°C end-to-end temperature coefficient, and

operate from a single +2.7V to +5.25V supply.

The MAX5487/MAX5488/MAX5489 are available in a

16-pin 3mm x 3mm x 0.8mm thin QFN package. Each

device is guaranteed over the extended -40°C to +85°C

temperature range.

19-3478; Rev 1; 1/05

*Future product—contact factory for availability.

**EP = Exposed pad.

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.

SCLK

GND

DIN

MAX5487ETE*

MAX5488ETE

MAX5489ETE

LCD Screen Adjustment

Audio Volume Control

Mechanical Potentiometer Replacement

Low-Drift Programmable Filters

Low-Drift Programmable-Gain Amplifiers

PART

INTERFACE

SPI

Dual, 256-Tap, Nonvolatile, SPI-Interface,

________________________________________________________________ Maxim Integrated Products

NV RAM

LATCH

16-BIT

8-BIT

General Description

Functional Diagram

-40°C to +85°C

TEMP RANGE

Linear-Taper Digital Potentiometers

MAX5487

MAX5488

MAX5489

DECODER

POR

Applications

256

16 Thin QFN-EP**

PIN-PACKAGE

Ordering Information/Selector Guide

o Wiper Position Stored in Nonvolatile Memory

o 3mm x 3mm x 0.8mm Thin QFN Package

o ±1 LSB INL, ±0.5 LSB DNL (Voltage-Divider Mode)

o 256 Tap Positions

o 35ppm/°C End-to-End Resistance Temperature

o 5ppm/°C Ratiometric Temperature Coefficient

o 10kΩ, 50kΩ, and 100kΩ End-to-End Resistance

o SPI-Compatible Serial Interface

o Reliability

o +2.7V to +5.25V Single-Supply Operation

SPI is a trademark of Motorola, Inc.

(EEPROM) and Recalled Upon Power-Up or

Recalled by an Interface Command

Coefficient

Values

EXPOSED PAD CONNECTED TO GND.

200,000 Wiper Store Cycles

50-Year Wiper Data Retention

TOP VIEW

RESISTANCE (kΩ)

SCLK

DIN

END-TO-END

100

3mm × 3mm

THIN QFN

MAX5487

MAX5488

MAX5489

Pin Configuration

TOP MARK

N.C.

Features

ABR

ABS

ABT

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