The ISL23711 is a digitally controlled potentiometer that provides 128 steps of resolution and can be used in a wide variety of applications including industrial and automotive control, parameter and bias adjustments, amplifier bias and control functions.
The ISL23711 is a digitally controlled potentiometer (XDCP) that integrates a 127‑element resistor array, wiper switches, and a 7‑bit volatile Wiper Register. It can be operated as a three‑terminal potentiometer or a two‑terminal variable resistor and is controlled via a standard I²C (12C) serial interface.
Key features include 128 tap positions, selectable 10 kΩ or 50 kΩ resistance options, low‑power CMOS operation, and a 10‑lead MSOP package. The datasheet lists absolute maximum ratings, operating specifications, pin functions, and timing diagrams for proper implementation.
| Terminal Voltage | +3 V or +5 V |
|---|---|
| Resistive Elements | 127 |
| Resolution | 128 steps |
| Package | 10‑lead MSOP |
| Standby Current | 500 nA max |
| Active Current | 200 nA max |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Negative Supply Voltage | -2.7 V to -5.5 V |
| Wiper Resistance | 70 Ω typ at Voc = 3.3 V |
| Temperature Coefficient (RtoTaL) | +50 ppm/°C |
| Ratiometric Temperature Coefficient | +4 ppm/°C |
| End‑to‑End Resistance Range | +20 % |
| Resistance Options | 10 kΩ or 50 kΩ |
The device provides 128 tap positions, giving 128 steps of resolution.
The standby current is specified as 500 nA maximum.
It is offered in a 10‑lead Mini Small Outline Plastic (MSOP) package.