The ISL22414 is a single channel digitally controlled potentiometer (DCP) produced by Intersil. It supports SPI bus communication and has 256 positions and a 2.5V~5.5V power supply.
The ISL22414 integrates a single digitally controlled potentiometer, control logic and non‑volatile memory on a CMOS IC. The wiper position is set via an SPI serial interface and can be stored in volatile and non‑volatile registers. The device supports both three‑terminal potentiometer and two‑terminal variable resistor configurations, making it suitable for control, parameter adjustment, and signal‑processing applications.
The datasheet provides full electrical specifications, pin descriptions, package dimensions (10‑lead MSOP), typical performance curves, and Daisy‑Chain operation. It also lists absolute maximum ratings, EEPROM endurance, and recommended operating conditions for industrial temperature ranges.
| Number of resistor taps | 256 |
|---|---|
| Supply voltage range (VCC) | 2.25 V to 5.5 V |
| Supply voltage range (V‑) | -2.25 V to -5.5 V |
| EEPROM endurance | 1,000,000 cycles |
| Industrial temperature range | -40 °C to +125 °C |
| General‑purpose non‑volatile registers | 14 |
The device operates with VCC from 2.25 V to 5.5 V and V‑ from –2.25 V to –5.5 V.
It provides 256 resistor taps.
The EEPROM can endure 1,000,000 write cycles.