X93154
Digitally Controlled Potentiometer (XDCP™)
Key Features
- Solid-State Potentiometer
- 3-Wire Serial Interface
- 32 Wiper Tap Points
- Wiper Position Stored in Nonvolatile Memory and Recalled on Power-up
- 31 Resistive Elements
- Temperature Compensated
- Maximum Resistance Tolerance of ±30%
- Terminal Voltage, 0 to VCC
- Low Power CMOS
- VCC = 3V±10%
- Active Current, 250µA max.
- Standby Current, 1µA max.
- High Reliability
- Endurance 200,000 Data Changes Per Bit
- Register Data Retention, 100 years
- RTOTAL Value = 50kΩ
- Packages
- 8 Ld MSOP, TDFN
- Pb-free Available (RoHS Compliant)
Description
The Intersil X93154 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
