X93155
Digitally Controlled Potentiometer (XDCP™)
Key Features
- Solid-state potentiometer
- Up/Down interface
- 32 wiper tap points per potentiometer
- Wiper position stored in nonvolatile memory and recalled on power-up
- 31 resistive elements per potentiometer
- Temperature compensated
- Maximum resistance tolerance ±25%
- Terminal voltage, 0 to VCC
- Low power CMOS
- VCC = 5V ±10%
- Active current, 200µA typ.
- Standby current, 2.0µA max
- High reliability
- Endurance 200,000 data changes per bit
- Register data retention, 100 years
- RTOTAL value = 50kΩ
- Packages
- 8 Ld MSOP
- Pb-free available (RoHS compliant) VCC
Description
The Intersil X93155 is a 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
