DS3903E-020+, Digital Potentiometer 110kΩ 128-Position Linear 3-Channel 20 Pin, TSSOP

The DS3903 contains three nonvolatile (NV) low temperature coefficient digital potentiometers, which can be accessed through a 2-wire bus. The DS3903 operates in both 3V and 5V systems, and it features a write-protect pin that can lock the positions of the potentiometers. An address pin allows two DS3903s to be placed on the same 2-wire bus.

Three 128-Position Linear Potentiometers (Two 10kΩ, One 100kΩ)
NV Wiper Storage
Low End-to-End Temperature Coefficient
Operates on an Industry-Standard 2-Wire Bus
Write-Protect Pin
Supply Range: 3V or 5V
Operating Temperature Range: -40°C to +85°C
Packaging: 20-Pin TSSOP
Applications
A Small and Low-Cost Replacement for Mechanical Potentiometers
Fiber Optic Transceiver Modules
Mobile Phones and PDAs
Portable Electronics
Power Supply Calibration

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