Description
The AD5251/AD52521 are dual-channel, I2C, nonvolatile memory, digitally controlled potentiometers with 64/256 positions, respectively.
These devices perform the same electronic adjustment functions as mechanical potentiometers, trimmers, and variable resistors.
Features
- AD5251: Dual 64-position resolution.
- AD5252: Dual 256-position resolution.
- AD5251: 50 kΩ.
- AD5252: 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ.
- Nonvolatile memory stores wiper setting w/write protection.
- Power-on refreshed with EEMEM settings in 300 µs typ.
- EEMEM rewrite time = 540 µs typ.
- Resistance tolerance stored in nonvolatile memory.
- 12 extra bytes in EEMEM for user-defined information.
- I2C compatible serial interface.
- Direct read/write access of RDAC.