ISL90841UIV1427Z-TK

Digital Potentiometers Overview

The ISL90841UIV1427Z-TK is a low noise, low power quad digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation. It integrates four independent potentiometers on a monolithic CMOS integrated circuit, utilizing resistor elements and CMOS switches for resistance adjustment. The device features a 256-tap resolution with 0.4% accuracy and operates via an I2C serial interface. Each potentiometer includes a wiper register for direct read/write control. The unit supports a supply voltage range of 2.7V to 5.5V, with a typical wiper resistance of 70Ω at 3.3V and standby current below 5µA.

Digital Potentiometers Feature Summary

• Integrates four digitally controlled potentiometers in a single package
• 256 resistor taps providing 0.4% resolution
• I2C serial interface with associated Wiper Registers for each channel
• Low standby current (<5µA max) and wide supply voltage range (2.7V to 5.5V)

Digital Potentiometers Applications

• Battery-powered portable equipment requiring low power consumption
• Industrial process control systems needing precise analog signal adjustment
• Programmable gain amplifiers and variable voltage references

Digital Potentiometers Part Context

This component belongs to the ISL90841 family of XDCPs from Intersil/Renesas. The 'IV' suffix indicates a TSSOP-14 package, while 'TK' typically denotes tape and reel packaging for automated assembly. It serves as a digital replacement for mechanical potentiometers in space-constrained designs.

Digital Potentiometers Replacement Considerations

Compatible substitutes include the ISL90841WIV1427Z and ISL90840 series devices. Verify that the alternative part number matches the required I2C address decoding and wiper resistance specifications for the specific application.