QuickView - DS3902 Dual, NV, Variable Resistors with User EEPROM

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Maxim > Products > [Audio] [Digital Potentiometers] [Memories: Volatile, NV, Multi-Function] [Voltage References]

DS3902 Dual, NV, Variable Resistors with User EEPROM

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Description

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The DS3902 features a dual, nonvolatile (NV), low temperature-coefficient, variable digital resistor with 256 user-selectable positions. The DS3902 can operate over a wide supply range of 2.4V to 5.5V, and communication with the device is achieved through an I²C compatible serial interface. Internal address settings allow the DS3902 slave address to be programmed to one of 128 possible addresses. The low cost and the small size of the DS3902 make it an ideal replacement for conventional mechanical-trimming resistors.

Key Features Applications/Uses

Dual 256-Position Linear Digital Resistors
Available as 50kΩ/30kΩ or 50kΩ/15kΩ
Resistor Settings Stored in NV Memory
Low Temperature Coefficient
I²C-Compatible Serial Interface
Wide Operating Voltage (2.4V to 5.5V)
Software Write Protection
User-EEPROM Memory
Programmable Slave Address
Operating Temperature Range: -40°C to +95°C
Small 8-Pin µSOP Package

Audio Power-Amp Biasing
Instrumentation and Industrial Controls
Optical Transceivers
Optical Transponders
Replacement for Mechanical Variable Resistors and Dip Switches
RF Power Amps

Key Specifications: Digital Potentiometers

Part Number

Taper

POTs Per Pkg.

Control Interface

Wiper Memory

Number of Steps

End-to-End Resistance (kΩ)

Res. Tol. (%)

Temp. Coeff. (typ)(ppm/°C)

Wiper Resistance (typ) (Ω)

Max. Idle State Supply Current @5V (µA)

Features

Smallest Available Package (max w/pins) (mm²)

Price^**

DS3902

Linear

2-Wire Addressable

Non-Volatile

256

50 + (30 or 15)

300

160

200

•	EEPROM Wiper Memory

$0.70 @ 1k

See All Digital Potentiometers (121)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

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2006-02-28
This page last modified: 2009-03-26