The AD5253/AD5254 are quad 64-/256-position I2C nonvolatile memory digital potentiometers with resistance values of 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ. They are designed for use in audio and video mixers, equalizers, amplifier preamplifiers, and audio control applications.
The AD5253/AD5254 are quad‑channel I²C digital potentiometers that provide nonvolatile memory for wiper settings. They offer 64‑step resolution for the AD5253 and 256‑step resolution for the AD5254, with selectable resistance values of 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ. Features include write‑protectable EEMEM, synchronous or asynchronous channel updates, and a +6 dB step‑change command.
Typical applications are mechanical potentiometer replacement, low‑resolution DAC replacement, LED backlight control, RF power‑amp bias, programmable gain/offset, and sensor calibration. The devices are supplied in a TSSOP‑20 package and operate over a wide temperature range, making them suitable for industrial and consumer electronics.
| Resolution (AD5253) | 6 bits (64 steps) |
|---|---|
| Resolution (AD5254) | 8 bits (256 steps) |
| Supply Voltage | 2.7 V – 5.5 V (single‑supply) |
| Operating Temperature Range | -40 °C to +85 °C |
| Data Retention | 100 years (typical at 55 °C) |
| Maximum Devices on I²C Bus | 4 (2 address‑decoding bits) |
| Package | TSSOP‑20 |
The AD5253 provides 6‑bit resolution (64 steps) and the AD5254 provides 8‑bit resolution (256 steps).
They operate from a single‑supply voltage of 2.7 V to 5.5 V.
The nonvolatile memory can retain data for about 100 years at a junction temperature of 55 °C.
Two address‑decoding bits allow up to four devices to be connected on the same I²C bus.