DATASHEET
X9317
Low Noise, Low Power, 100 Taps, Digitally Controlled Potentiometer (XDCP™)
FN8183 Rev.10.00 Dec 17, 20...
DATASHEET
X9317
Low Noise, Low Power, 100 Taps, Digitally Controlled Potentiometer (XDCP™)
FN8183 Rev.10.00 Dec 17, 2018
The 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
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 = 10kΩ...