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FULL DATA SHEET (PDF, 224kB) Download   E-Mail The DS3908 contains two nonvolatile (NV) digital potentiometers with programmable-gain amplifiers buffering the wiper outputs. The potentiometer position and amplifier gain are controlled through an I²C-compatible serial bus. The DS3908 operates in both 3.3V and 5V systems and features a write-protect pin that locks the position of the potentiometers and gain registers. Up to eight DS3908s can be placed on a single I²C bus.

Key Features		Applications/Uses
Two 64-Position Linear Taper Potentiometers Integral Wiper Buffering Amplifiers With Selectable Gains of 1V/V, 2V/V, or 4V/V 100kΩ Potentiometer End-to-End Resistance Low Potentiometer Temperature Coefficient Nonvolatile Wiper and Gain Storage I²C-Compatible Interface Write-Protect Pin Prevents Accidental Field Reprogramming 3V to 5.5V Supply Voltage Range -40°C to +85°C Operating Temperature Range 14-Pin TDFN Package		Cell Phones/PDAs PIN Diode Biasing Portable Electronics Power Supply Calibration

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