Rainbow-electronics MAX5475 Uživatelský manuál stáhnout pdf

General Description

The MAX5471/MAX5472/MAX5474/MAX5475 linear-

taper digital potentiometers function as mechanical

potentiometers, but replace the mechanics with a sim-

ple 3-wire up/down digital interface. These digital

potentiometers feature nonvolatile memory (EEPROM)

to return the wiper to its previously stored position upon

power-up.

The MAX5471/MAX5472 are 2-terminal, variable resistors

in 6-pin SOT23 packages. The MAX5474/MAX5475 are

3-terminal potentiometers in 8-pin SOT23 packages.

The MAX5471/MAX5474 have an end-to-end resistance

of 50kΩ, and the MAX5472/MAX5475 have an end-

to-end resistance of 100kΩ. All of these devices have

32 wiper positions, a low ratiometric temperature coeffi-

cient (5ppm/°C), and all operate from a single +2.7V to

+5.25V supply. Each device is guaranteed over the

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

Applications

Mechanical Potentiometer Replacement

Liquid-Crystal-Display (LCD) Screen Adjustment

Audio Volume Control

Programmable Filters

Features

♦ Wiper Position Stored in Nonvolatile Memory and

Recalled Upon Power-Up

♦ Tiny SOT23 Package

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

Coefficient

♦ 5ppm/°C Ratiometric Temperature Coefficient

♦ 32 Tap Positions

♦ Voltage-Divider or Variable-Resistor

Potentiometer Configuration

♦ 50kΩ and 100kΩ End-to-End Resistance Values

♦ 1µA (max) Static Supply Current

♦ 2.7V to 5.25V Single-Supply Operation

♦ 200,000 Wiper Store Cycles

♦ 50-Year Wiper Data Retention

MAX5471/MAX5472/MAX5474/MAX5475

32-Tap, Nonvolatile, Linear-Taper Digital

Potentiometers in SOT23

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-3067; Rev 0; 10/03

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.

PART TEMP RANGE PIN-PACKAGE

MAX5471EZT-T -40°C to +85°C 6 Thin SOT23-6

MAX5472EZT-T -40°C to +85°C 6 Thin SOT23-6

MAX5474EKA-T -40°C to +85°C 8 SOT23-8

MAX5475EKA-T -40°C to +85°C 8 SOT23-8

TOP VIEW

GND

INC

GND

SOT23-6

SOT23-8

U/D

MAX5471

MAX5472

MAX5474

MAX5475

INC

Pin Configurations

PART

END-TO-END

RESISTANCE (kΩ)

TOP MARK

MAX5471EZT 50 ABQN

MAX5472EZT 100 ABQM

MAX5474EKA 50 AEIZ

MAX5475EKA 100 AEIY

Selector Guide

1 2 3 4 5 6 ... 11 12

Potentiometers in SOT23 1

Shrnutí obsahu

Strany 1 - Potentiometers in SOT23

General DescriptionThe MAX5471/MAX5472/MAX5474/MAX5475 linear-taper digital potentiometers function as mechanicalpotentiometers, but replace the mecha

Strany 2

MAX5471/MAX5472/MAX5474/MAX547532-Tap, Nonvolatile, Linear-Taper DigitalPotentiometers in SOT2310 ____________________________________________________

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