The X9250 is a quad digitally controlled potentiometer (XDCP) chip with low noise, low power, SPI bus, and 256 taps. It features four potentiometers, 256 resistor taps/pot with 0.4% resolution, SPI serial interface, 40Ω wiper resistance, four nonvolatile data registers, standby current < 5µA max, and power supplies ranging from 2.7V to 5.5V. It has high reliability with endurance up to 100,000 data changes per bit per register and data retention for 100 years. The X9250 is available in 24 Ld SOIC and 24 Ld TSSOP packages.
The X9250 integrates four digitally controlled potentiometers (XDCP) on a single CMOS IC. Each pot provides 256 resistor taps with 0.4 % resolution and can be accessed via a standard SPI serial interface. The device supports both three‑terminal potentiometer and two‑terminal variable resistor configurations for a wide range of control and signal‑processing applications.
Key features include low standby current, wide supply voltage ranges (2.7 V–5.5 V), selectable total resistance values (100 kΩ or 50 kΩ), and non‑volatile storage of wiper positions. The part is offered in 24‑lead SOIC and TSSOP packages and meets RoHS compliance.
| Number of potentiometers | 4 per package |
|---|---|
| Resolution | 256 taps per pot (0.4 % resolution) |
| Interface | SPI serial interface |
| Wiper resistance | 40 Ω typical @ Voc = 5 V |
| Standby current | < 5 A max (total package) |
| Supply voltage range | Voc 2.7 V–5.5 V, V+ 2.7 V–5.5 V, V‑ –2.7 V–‑5.5 V |
| Total pot resistance options | 100 kΩ or 50 kΩ |
The X9250 uses an SPI serial interface.
Each potentiometer provides 256 taps.
The device operates with Voc 2.7 V–5.5 V, V+ 2.7 V–5.5 V, and V‑ –2.7 V–‑5.5 V.
Standby current is less than 5 A for the total package.