The AD5241/AD5242 are single/dual-channel, 256-position digitally controlled variable resistors with various features and characteristics.
The AD5241 and AD5242 are single‑ or dual‑channel digital potentiometers offering 256 programmable positions. They support I²C‑compatible two‑wire serial control, include two extra programmable logic outputs, and operate from a single 2.7 V‑5.5 V supply or dual supplies.
The devices are available in SOIC‑14/‑16 and ultra‑compact TSSOP‑14/‑16 packages, guarantee monotonic operation, and are rated for an extended temperature range of –40 °C to +105 °C. Detailed specifications, pin configurations, timing diagrams, and programming equations are provided.
| Number of positions | 256 |
|---|---|
| Nominal resistance options | 10 kΩ, 100 kΩ, 1 MΩ |
| Supply voltage (single‑supply) | 2.7 V to 5.5 V |
| I²C clock frequency max | 400 kHz |
The device operates from –40 °C to +105 °C.
It provides two extra programmable logic outputs.
VDD can be up to +7 V relative to VSS.
The I²C clock can run up to 400 kHz.