The AD5280/AD5282 are single-channel and dual-channel, 256-position, digitally controlled variable resistors (VR)2. The devices perform the same electronic adjustment function as a potentiometer, trimmer, or variable resistor. They can be programmed to generate the desired output voltage or current, as required.
The AD5280 (single‑channel) and AD5282 (dual‑channel) digital potentiometers provide 256 programmable resistance steps. They operate from a single 5 V to 15 V supply or from dual ±5 V supplies, and offer fixed terminal resistances of 20 kΩ, 50 kΩ, or 200 kΩ with a low temperature coefficient of 30 ppm/°C. These devices replace mechanical potentiometers in multimedia, communications, instrumentation, and voltage‑source applications.
The datasheet includes detailed electrical characteristics, absolute maximum ratings, thermal resistance data, pin configurations, typical performance curves, and timing specifications for the I²C‑compatible two‑wire serial interface. Packages are offered in 14‑lead and 16‑lead TSSOP formats.
| Channels (AD5280) | 1 |
|---|---|
| Channels (AD5282) | 2 |
| Resolution | 8 bits |
| Positions | 256 |
| Supply Voltage (single) | 5 V to 15 V |
| Supply Voltage (dual) | ±5 V |
| Temperature Coefficient | 30 ppm/°C |
| Operating Temperature Range | –40 °C to +85 °C |
| Shutdown Current | 5 pA |
| Logic Supply Current | 60 pA |
| Package Types | TSSOP‑14, TSSOP‑16 |
The wiper position defaults to midscale when power is applied.
The AD5282 provides two independent channels.
They operate from –40 °C up to +85 °C.