AD5243/AD5248 is a dual-channel, 256-position, I2C-compatible digital potentiometer. It features a compact package, fast settling time, low power consumption, etc. It is suitable for applications such as system calibration, electronics level settings, mechanical trimmer replacement, permanent factory PCB setting, transducer adjustment, etc.
The AD5243 and AD5248 provide compact 3 mm × 4.9 mm packaged dual 256‑position digital potentiometers. They operate from a single 2.7 V to 5.5 V supply, consume less than 6 pA on power‑on, and feature a low temperature coefficient of 35 ppm/°C. The devices support full read/write of the wiper register and include optional address decode pins on the AD5248 for multi‑device I²C buses.
Typical applications include system calibrations, sensor adjustments, RF amplifier biasing, automotive electronics tuning, and gain or offset control. An evaluation board and Windows‑based programming software are available to simplify factory programming and system integration.
| End‑to‑end resistance options | 2.5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ |
|---|---|
| Supply voltage range | 2.7 V to 5.5 V |
| Power‑on current | ≤ 6 pA |
| Resistance temperature coefficient | 35 ppm/°C |
| Wiper resistance (typical) | 160 Ω – 200 Ω |
| Differential nonlinearity (DNL) | ±1 LSB max |
| Integral nonlinearity (INL) | ±2 LSB (2.5 kΩ version) |
| Bandwidth (‑3 dB) | 4.8 MHz (typical) |
| Total harmonic distortion | 0.1 % at 1 kHz |
| Shutdown supply current | ≈ 1 pA |
It operates from a single 2.7 V to 5.5 V supply.
The power‑on current is specified as 6 pA maximum.
The devices are offered with 2.5 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ end‑to‑end resistance.
The resistance temperature coefficient is 35 ppm/°C.