The Intersil X9315UMI 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. 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 or as a two-terminal variable resistor in a wide variety of applications.
Feature
- 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
- End to end resistance range ±20%
- Terminal voltage, 0 to VCC
- Low power CMOS
- VCC = 2.7V or 5V
- Active current, 80/400µA max.
- Standby current, 5µA max.
- High reliability
- Endurance, 100,000 data changes per bit
- Register data retention, 100 years
- RTOTAL values = 10kΩ, 50kΩ, 100kΩ
- Packages
- 8 Ld SOIC, MSOP and PDIP
- Pb-free available (RoHS compliant)
