ISL90726WIE627Z-TK

Digital Potentiometers Overview

The ISL90726WIE627Z-TK is a single volatile digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics. It features an I²C serial bus interface for wiper position control via SDA and SCL inputs. The device utilizes a resistor array of 127 elements providing 128 tap points, with a total resistance (RTOTAL) of 10kΩ. Operating within a terminal voltage range of 2.7V to 5.5V, it exhibits low temperature coefficients of 45 ppm/°C in rheostat mode and 15 ppm/°C in divider mode. Key electrical parameters include a maximum active supply current of 200µA and a standby current of 500nA. The component is housed in a 6-lead SC-70 package.

Digital Potentiometers Feature Summary

• I²C Serial Bus Interface: Controlled by SDA and SCL inputs for direct host communication.
• 128 Wiper Tap Points: Implemented via a resistor array of 127 resistive elements and a switching network.
• Low Temperature Coefficient: Typical values are 45 ppm/°C for rheostat configuration and 15 ppm/°C for divider configuration.
• Power Efficiency: Features low power CMOS technology with a maximum active current of 200µA and standby current of 500nA.

Digital Potentiometers Applications

• Mechanical Potentiometer Replacement
• Transducer Adjustment for Pressure, Temperature, Position, Chemical, and Optical Sensors
• Laser Diode and LED Biasing
• LCD Brightness and Contrast Adjustment
• Gain Control and Offset Adjustment

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix 'WIE627' corresponds to the 10kΩ resistance value and industrial temperature range (-40°C to +85°C). Confirm that the 'TK' suffix indicates tape and reel packaging as specified in the manufacturer's documentation. Ensure compatibility with RoHS compliance requirements for Pb-free plastic packaged products.

Digital Potentiometers Selection Notes

Select this component when a volatile digital potentiometer with an I²C interface is required. The ISL90726WIE627Z-TK provides a 10kΩ resistance value; choose the UIE627 variant if a 50kΩ resistance is needed instead. Consider the 6 Ld SC-70 package dimensions for PCB layout constraints. Verify that the system can tolerate volatile memory loss upon power cycling, as the wiper position resets to midscale on power-up.

Digital Potentiometers Part Context

This component belongs to the Intersil XDCP™ family of digitally controlled potentiometers, now under Renesas Electronics. It serves as a solid-state alternative to mechanical potentiometers, offering precise electronic adjustment without moving parts. The device integrates a resistor array, wiper switches, and an I²C control section into a compact surface-mount package suitable for space-constrained applications.

Digital Potentiometers Replacement Considerations

The ISL90726UIE627Z-TK is a confirmed substitute part number from the same series, differing only in having a 50kΩ total resistance instead of 10kΩ. Both share the same 6 Ld SC-70 package, I²C interface, and electrical characteristics.