This data sheet introduces the features of the AD5263 quad 256-bit digital potentiometer, including end-to-end resistance, interface, power supply range, applications, etc.
The AD5263 is a quad‑channel, 256‑position digital potentiometer with a selectable SPI or I²C interface. It offers end‑to‑end resistances of 20 kΩ, 50 kΩ, or 200 kΩ and operates from a single 10 V‑15 V supply or a dual‑supply configuration.
The document includes detailed electrical and timing characteristics, pin descriptions, typical performance graphs, and ordering information for the 24‑lead TSSOP package, along with application notes such as gain control and resistance scaling.
| Supply voltage range | 10 V to 15 V single supply; +5 V dual supply |
|---|---|
| Operating temperature range | -40 °C to +125 °C |
| Resolution and channels | 256 positions, 4 channels |
| Logic supply voltage | 2.7 V to 5.5 V |
| SPI clock frequency | 25 MHz |
| I²C clock frequency | 400 kHz |
| Rheostat mode temperature coefficient | 30 ppm/°C |
The AD5263 has a pin‑selectable interface that can operate as either SPI or I²C.
The device provides four independent channels, each with 256 programmable positions.
The rheostat mode temperature coefficient is 30 ppm/°C.