AD5232 is a 256-bit dual channel digital potentiometer with non-volatile memory.
The AD5232 provides a nonvolatile, dual‑channel, digitally controlled variable resistor with 256‑position resolution. It replaces mechanical potentiometers, offering enhanced resolution, solid‑state reliability, and low temperature coefficient performance. The device supports SPI‑compatible serial communication, dual‑supply operation (3 V to 5 V single‑supply or ±2.5 V dual‑supply), and includes 14 bytes of user EEPROM and permanent write protection.
The datasheet details electrical characteristics, timing diagrams, absolute maximum ratings, thermal resistance, ESD precautions, pin configuration, and programming modes. It also lists specifications such as 8‑bit resolution, 100‑year data retention, 100 k‑cycle endurance, and an operating temperature range of –40 °C to +85 °C. The AD5232 is supplied in a 16‑lead TSSOP package.
| Resolution | 8 bits |
|---|---|
| Supply Voltage (single‑supply) | 3 V to 5 V |
| Operating Temperature Range | –40 °C to +85 °C |
| Data Retention | 100 years (typical at 55 °C) |
| Endurance (EEPROM write cycles) | 100 k cycles |
It uses an SPI‑compatible serial interface.
Each channel provides 256 positions.
The device retains data for about 100 years at 55 °C.
The EEPROM can endure up to 100 k write cycles.