ISL22316 is a digitally controlled potentiometer from Intersil. It has 128 resistor taps, low power consumption, and integrated non-volatile memory. It uses I2C serial interface and can be used in a wide variety of control, parameter adjustment and signal processing applications.
The ISL22316 integrates a single digitally controlled potentiometer (DCP) with 128 resistor taps and a non‑volatile memory for wiper position storage. It can be used as a three‑terminal potentiometer or a two‑terminal variable resistor and is accessed via an I²C‑compatible serial interface.
The device operates from 2.7 V to 5.5 V, offers a typical wiper resistance of 70 Ω at 3.3 V, and is available in 10‑lead MSOP or 10‑lead TDFN packages. Key specifications include 1 MΩ endurance per register bit, 50‑year data retention at ≤ +55 °C, and a shutdown current of 54 µA max.
| Resistor taps | 128 |
|---|---|
| Supply voltage range | 2.7 V to 5.5 V |
| Shutdown current (max) | 54 µA |
| Endurance per register bit | 1,000,000 cycles |
| Data retention | 50 years @ ≤ +55 °C |
It provides 128 resistor taps.
The device operates from 2.7 V to 5.5 V.
The maximum shutdown current is 54 µA.
The non‑volatile register retains data for 50 years at temperatures up to +55 °C.