This document introduces the features of Intersil X93156 Digitally Controlled Potentiometer, including: low noise, low power, 3 wire Up/Down, 32 Taps.
The X93156 is a three‑terminal digitally controlled potentiometer (XDCP) featuring a 31‑element resistor array and 32 wiper tap points. It can operate as a three‑terminal potentiometer or a two‑terminal variable resistor for bias voltages, LCD brightness, ladder networks, and more.
The document includes ordering information, pinout diagrams, absolute maximum ratings, electrical specifications, timing diagrams, and mechanical package dimensions. It also describes the non‑volatile memory operation that stores the wiper position for recall on power‑up, and provides guidelines for power‑up/down conditions and standby mode.
| Wiper tap points | 32 |
|---|---|
| Resistive elements | 31 |
| Supply voltage (Voc) | 2.7 V to 5.5 V |
| Active current (typical) | 200 µA |
| Standby current (max) | 2 A |
| Endurance | 200,000 data changes per bit |
| Data retention | 100 years |
| Resistance tolerance | +25 % |
| Temperature coefficient | +35 ppm |
| Resolution | 3 % |
The X93156 provides 32 wiper tap points.
The wiper position is stored in nonvolatile memory and recalled on power‑up.
The device operates from 2.7 V to 5.5 V.
It can endure 200,000 data changes per bit.