X9317
Digitally Controlled Potentiometer (XDCP™)
Key Features
- Solid-State Potentiometer
- 3-Wire Serial Up/Down Interface
- 100 Wiper Tap Points
- Wiper Position Stored in Nonvolatile Memory and Recalled on Power-up
- 99 Resistive Elements
- Temperature Compensated
- End-to-end Resistance Range ±20%
- Low Power CMOS
- VCC = 2.7V to 5.5V, and 5V ±10%
- Standby Current <5µA
- High Reliability
- Endurance, 100,000 Data Changes per Bit
- Register Data Retention, 100 years
- RTOTAL Values = 1kΩ, 10kΩ, 50kΩ, 100kΩ
- Packages
- 8 Ld SOIC, PDIP, TSSOP, and MSOP
- Pb-Free Available (RoHS Compliant)
Description
The Intersil X9317 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 99 resistive elements and a wiper switching network. Between each element and at either end are tap points accessible to the wiper terminal. 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 a subsequent power-up operation.
The device can be used as a three-terminal potentiometer for voltage control or as a
two-terminal variable resistor for current control in a wide variety of applications.
Applications
- LCD Bias Control
- DC Bias Adjustment
- Gain and Offset Trim
- Laser Diode Bias Control
- Voltage Regulator Output Control
