ADN2850 - Analog Devices

ADN2850 Nonvolatile Memory/ Dual 1024 Position Programmable Resistors

The ADN2850 provides dual channel, digitally controlled programmable resistors2 with resolution of 1024 positions. These devices perform the same electronic adjustment function as a mechanical rheostat. The ADN2850’s versatile programming via a standard serial interface allows sixteen mode of operations and adjustment including scratch pad programming, memor.

Features

Dual, 1024 Position Resolution 25K, 250K Ohm Full Scale Resistance Low Temperature Coefficient -- 35ppm/°C Nonvolatile Memory1 Preset Maintains Wiper Settings Wiper Settings Read Back Linear Increment/Decrement Log taper Increment/Decrement SPI Compatible Serial Interface +3V to +5V Single Supply or ±2.5V Dual Supply 26 bytes User Nonvolatile Memory for Constant Storage with Current Monitoring Configurable Function APPLICATIONS SONET, SDH, ATM, Gigabit Ethernet, DWDM Laser Diode Driver Optical Supervisory Systems Nonvolatile Memory, Dual 1024 Position Programmable Resistors ADN2850 FUNCTION.