Document
Data Sheet
Nonvolatile Memory, Dual 256-Position Digital Potentiometer
AD5232
FEATURES
Dual-channel, 256-position resolution 10 kΩ, 50 kΩ, and 100 kΩ nominal terminal resistance Nonvolatile memory maintenance of wiper settings Predefined linear increment/decrement instructions Predefined ±6 dB step log taper increment/decrement
instructions SPI-compatible serial interface Wiper settings and EEMEM readback 3 V to 5 V single-supply operation ±2.5 V dual-supply operation 14 bytes of general-purpose user EEMEM Permanent memory write protection 100-year typical data retention (TA = 55°C)
APPLICATIONS
Mechanical potentiometer replacement Instrumentation: gain and offset adjustment Programmable voltage-to-current conversion Programmable filters, delays, and time constants Programmable power supply Low resolution DAC replacement Sensor calibration
GENERAL DESCRIPTION
The AD5232 device provides a nonvolatile, dual-channel, digitally controlled variable resistor (VR) with 256-position .