Part Number : DS3903, DS3903E-020
Function : Triple 128-Position Nonvolatile Digital Potentiometer
Package : 20-Pin TSSOP type
Manufacturers : Maxim Integrated
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Description :
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.
Pinout
Features
- 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
Applications
- A Small and Low-Cost Replacement for Mechanical Potentiometers
- Fiber Optic Transceiver Modules
- Mobile Phones and PDAs
- Portable Electronics
- Power Supply Calibration