The ISL22426 integrates two digitally controlled potentiometers (DCP) and non-volatile memory on a monolithic CMOS integrated circuit. It features low noise, low power, SPI bus interface, and can be used in a wide range of applications including control, parameter adjustments, and signal processing.
The ISL22426 integrates two digitally controlled potentiometers and non‑volatile memory on a monolithic CMOS IC. The wiper positions are set via an SPI serial interface and can be retained after power‑down.
Key features include 128 resistor taps, a supply range of 2.7 V to 5.5 V, shutdown current of 54 µA max, and options for 10 kΩ or 50 kΩ total resistance. The device is supplied in a 14‑lead TSSOP package and is suited for control, parameter adjustment, and signal‑processing applications.
| Wiper resistance | 70Ω typical @ 3.3V |
|---|---|
| Shutdown current | 54 µA max |
| Supply voltage range | 2.7 V to 5.5 V |
| Total resistance options | 10 kΩ or 50 kΩ |
| Endurance (non‑volatile writes) | 1,000,000 cycles per bit |
| Data retention | 50 years @ T <55 °C |
| Resistor taps | 128 |
| Package | 14‑lead TSSOP |
The device operates from 2.7 V to 5.5 V.
It provides 128 resistor taps.
The wiper resistance is about 70 Ω typical at 3.3 V.
The shutdown current is 54 µA maximum.