The X93155 is Intersil's digitally controlled potentiometer (XDCP). The device consists of a resistor array, wiper switches, a control section, and nonvolatile memory. The wiper position is controlled by a 3-wire interface. The potentiometer is implemented by a resistor array composed of 31 resistive elements and a wiper switching network. The position of the wiper element is controlled by the CS, U/D, and INC inputs. The position of the wiper can be stored in nonvolatile memory and then be recalled upon during a subsequent power-up operation. The device is connected as a two-terminal variable resistor and can be used in a wide variety of applications including: - Bias and Gain Control - LCD Contrast Adjustment
The Intersil X93155 is a digitally controlled potentiometer (XDCP) that combines a resistor array, wiper switches, a control section, and non‑volatile memory. The wiper position is set via a 3‑wire interface (CS, U/D, INC) and can be stored for later recall.
The device is offered in an 8‑lead MSOP package, operates from a 5 V supply, and provides low active (≈200 µA) and standby (≈2 µA) currents. It supports up to 200 k data changes per bit and retains the stored position for 100 years.
| End‑to‑end Resistance (Rtotal) | 37.5 kΩ min / 50 kΩ typ / 62.5 kΩ max |
|---|---|
| Active Current (Increment) | 200 µA typ |
| Standby Current | 2.0 µA max |
| Temperature Coefficient | +35 ppm/°C |
| Endurance | 200 000 data changes per bit |
| Data Retention | 100 years |
| Supply Voltage (Voc) | 5 V |
| Package | 8‑lead MSOP (M8.118) |
The X93155 provides 32 wiper tap points per potentiometer.
The device can endure at least 200,000 data changes per bit.
The standby current is specified as 2.0 µA maximum.
It is supplied in an 8‑lead Mini Small Outline Plastic (MSOP) package, part number M8.118.