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Data Sheet

FULL DATA SHEET (PDF, 300kB) Download   E-Mail

Description

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 or 50kΩ 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

Application Notes

Application Note 3257: Using DS3902 in Low Cost Optical Modules - DS3902 Application Note 3812: HFRD-22.2: Modular GPON (MOGPON) ONT - DS3902 Application Note 3953: Side-by-Side Comparison of Fiber-Monitoring and Control ICs - DS3902 Application Note 4051: Using an Analog Voltage to Control a Digital Potentiometer - DS3902

Evaluation Kits

none

Design Guides

REFERENCE (PDF) AUDIO (PDF) DIGITAL POTENTIOMETERS (PDF)

Reliability Reports

Reliability Report: DS3902.pdf

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-2 of 2
DS3902	Notes	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS3902U-530+	30k/50kohms			uSOP;8 pin;16 mm² Dwg: 21-0036J (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS3902U-515+	15k/50kohms			uSOP;8 pin;16 mm² Dwg: 21-0036J (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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Price and Availability   Samples   Buy Online   Package Information   Lead-Free Information

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