This document introduces the features and characteristics of Intersil X9260 Dual Supply/Low Power/256-Tap/SPI bus Dual Digitally-Controlled (XDCP™) Potentiometers.
The X9260 integrates two digitally‑controlled potentiometers (XDCP) on a monolithic CMOS IC. Each pot provides 256 resistor taps with 0.4 % resolution and can be accessed via a standard SPI bus for read, write, and transfer operations.
Key features include low standby current (<5 µA), wide supply range (2.7 V–5.5 V and –2.7 V––5.5 V), non‑volatile data registers for storing wiper positions, power‑on recall of the saved position, and a 24‑lead SOIC package. The device is suited for applications such as gain control, offset trimming, and programmable reference voltages.
| Number of potentiometers | 2 |
|---|---|
| Resolution (taps per potentiometer) | 256 taps (0.4 % resolution) |
| SPI interface | Write, Read, Transfer operations |
| Wiper resistance | 100 Ω typical @ V+ = 5 V, V‑ = –5 V |
| Standby current | <5 µA |
| Supply voltage range | V+ 2.7 V–5.5 V, V‑ –2.7 V––5.5 V |
| Data retention | 100 years |
| Endurance (data changes) | 100,000 changes per bit per register |
| Package | 24‑lead SOIC |
The X9260 integrates two digitally‑controlled potentiometers on a single IC.
The standby current is less than 5 µA max.
It operates with V+ from 2.7 V to 5.5 V and V‑ from –2.7 V to –5.5 V.
The device stores the wiper position in non‑volatile data registers and recalls it on power‑up.