ISL95710
Digitally Controlled Potentiometer (XDCP™), Terminal Voltage ±2.7V to ±5V, 128 Taps, Up/Down Interface

Key Features

• Non-Volatile Solid-State Potentiometer
• Up/Down Interface with Chip Select Enable
• DCP Terminal Voltage ±2.7V to ±5.5V
• 128 Wiper Tap Points
• Wiper position stored in nonvolatile memory and recalled on power-up
• 127 Resistive Elements
• Typical RTOTAL tempco = ±50ppm/°C
• End to end resistance range ±20%
• Low Power CMOS
• Standby current, 1µA
• Active current, 3mA max
• V_CC = 2.7V to 5.5V
• V- = -2.7V to -5.5V
• High Reliability
• Endurance, 200,000 data changes per bit
• Register data retention, 50 years
• RTOTAL Values = 10kΩ, 50kΩ
• Package
• 10 Ld MSOP
• Pb-free plus anneal (RoHS compliant)

Description

The Intersil ISL95710 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 Up/Down interface.

The potentiometer is implemented by a resistor array composed of 127 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 including:

• Industrial and automotive control
• Parameter and bias adjustments
• Amplifier bias and control