MAX5419 Maxim Integrated Products, MAX5419 Datasheet

MAX5419

Manufacturer Part Number

MAX5419

Description

256-Tap Nonvolatile I2C-Interface Digital Potentiometers

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX5419.pdf (14 pages)

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The MAX5417/MAX5418/MAX5419 nonvolatile, linear-

taper, digital potentiometers perform the function of a

mechanical potentiometer by replacing the mechanics

with a simple 2-wire digital interface, allowing communi-

cation with multiple devices. Each device performs the

same function as a discrete potentiometer or variable

resistor and has 256 tap points.

The devices feature an internal, nonvolatile EEPROM

used to store the wiper position for initialization during

power-up. The fast-mode I

allows communication at data rates up to 400kbps, mini-

mizing board space and reducing interconnection com-

plexity in many applications. Each device is available with

one of four factory-preset addresses (see the Selector

Guide ) and features an address input for a total of eight

unique address combinations.

The MAX5417/MAX5418/MAX5419 provide three nomi-

nal resistance values: 50kΩ (MAX5417), 100kΩ

(MAX5418), or 200kΩ (MAX5419). The nominal resistor

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

only 5ppm/°C ratiometric. This makes the devices ideal

for applications requiring a low-temperature-coefficient

variable resistor, such as low-drift, programmable gain-

amplifier circuit configurations.

The MAX5417/MAX5418/MAX5419 are available in a

3mm x 3mm 8-pin TDFN package, and are specified

over the extended -40°C to +85°C temperature range.

19-3185; Rev 3; 3/09

* Future product—contact factory for availability.

** Exposed pad.

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.

MAX5417LETA

MAX5417META*

MAX5417NETA*

MAX5417PETA*

MAX5418LETA

MAX5418META*

MAX5418NETA*

MAX5418PETA*

MAX5419LETA

MAX5419META*

MAX5419NETA*

MAX5419PETA*

Mechanical Potentiometer Replacement

Low-Drift Programmable-Gain Amplifiers

Volume Control

Liquid-Crystal Display (LCD) Contrast Control

PART

________________________________________________________________ Maxim Integrated Products

General Description

-40°C to +85°C

TEMP RANGE

C-compatible serial interface

256-Tap, Nonvolatile, I

Applications

C ADDRESS

010100A

010101A

010110A

010111A

010100A

010101A

010110A

010111A

010100A

010101A

010110A

010111A

Ordering Information/Selector Guide

♦ Power-On Recall of Wiper Position from

♦ Tiny 3mm x 3mm 8-Pin TDFN Package

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

♦ 5ppm/°C Ratiometric Temperature Coefficient

♦ 50kΩ/100kΩ/200kΩ Resistor Values

♦ Fast I

♦ 500nA (typ) Static Supply Current

♦ Single-Supply Operation: +2.7V to +5.25V

♦ 256 Tap Positions

♦ ±0.5 LSB DNL in Voltage-Divider Mode

♦ ±0.5 LSB INL in Voltage-Divider Mode

Pin Configuration appears at end of data sheet.

Digital Potentiometers

GND

Nonvolatile Memory

Coefficient

SDA

SCL

C-Compatible Serial Interface

R (kΩ)

INTERFACE

100

200

SHIFT

8-BIT

POR

PIN-PACKAGE

8 TDFN-EP**

MEMORY

LATCH

Functional Diagram

8-BIT

C-Interface,

DECODER

POSITION

www.DataSheet4U.com

MAX5417

MAX5418

MAX5419

256-

256

Features

TOP MARK

ALW

AMA

ALU

ALS

ALT

ALV

ALX

ALY

ALZ

AIC

AID

AIB

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