The X95820 integrates two digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated circuit. It features low noise, low power, I2C bus, and 256 taps. The position of the wipers is controlled by the user through the I2C bus interface. The device can be used as three-terminal potentiometers or two-terminal variable resistors in a wide variety of applications including control, parameter adjustments, and signal processing.
The Intersil X95820 integrates two digitally controlled potentiometers (XDCP) on a monolithic CMOS IC. Each potentiometer offers 256 resistor taps with 0.4% resolution and can be used as a three‑terminal potentiometer or a two‑terminal variable resistor. The device is controlled via a standard I²C (°C) serial interface and includes non‑volatile storage for wiper positions.
Key features include a supply range of 2.7 V to 5.5 V, standby current below 5 µA, typical wiper resistance of 700 Ω at 3.3 V, and endurance of 150 k data changes per bit with 50‑year data retention. The package is offered in a 14‑lead TSSOP form factor.
| Resistor taps | 256 |
|---|---|
| Wiper resistance (typical @3.3V) | 700 Ω |
| Standby current | < 5 µA |
| Supply voltage range | 2.7 V – 5.5 V |
| Total resistance options | 10 kΩ / 50 kΩ |
| Endurance (non‑volatile writes) | 150 000 cycles per bit |
| Data retention (non‑volatile) | 50 years @ T < 75 °C |
| Operating temperature range | -40 °C – 85 °C |
The standby current is less than 5 µA.
It provides 256 resistor taps.
The device operates from 2.7 V to 5.5 V.
The WP pin must be held HIGH; if WP is LOW, write operations are ignored.