The Intersil X9116 is a digitally controlled nonvolatile potentiometer designed to be used in trimmer applications. The pot consists of 15 equal resistor segments that connect to the wiper pin through programmable CMOS switches. The tap position is programmed through a 3-wire up/down serial port. The last position of the wiper is stored in a nonvolatile memory location which is recalled at the time of power up of the device. The wiper moves through sequential tap positions with inputs on the serial port. A falling edge on INC (bar) causes the tap position to increment one position up or down based on whether the U/D (bar) pin is held high or low. The X9116 can be used in many applications requiring a variable resistance. In many cases it can replace a mechanical trimmer and offers many advantages such as temperature and time stability as well as the reliability of a solid state solution.
The X9116 is a digitally controlled non‑volatile potentiometer designed for trimmer applications. It contains 15 resistor segments with a programmable CMOS switch array, offering 16 tap positions accessed via a 3‑wire up/down serial interface. Features include low noise, low power consumption, and operation from 2.7 V to 5 V.
The document includes detailed pinout diagrams, ordering codes for MSOP and SOIC packages, electrical specifications, absolute maximum ratings, and example circuit configurations. It also describes programming procedures, timing requirements, and reliability data such as endurance and data retention.
| Supply Voltage (Voc) | 2.7 V to 5 V |
|---|---|
| Standby current | < 1 µA max |
| Total resistance (RTOTAL) | 10 kΩ |
| Resolution | 6 % |
The X9116 operates from 2.7 V up to 5 V.
The position is stored when the CS input goes high while the INC input is also high.