ISL22424UFR16Z

Digital Potentiometers Overview

The ISL22424UFR16Z is a digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation. It features four independent circuits, each with 256 taps and a linear taper. The device utilizes non-volatile memory to retain wiper settings upon power loss. It operates via an SPI-compatible serial interface and supports dual supply voltages ranging from ±2.25V to 5.5V. The component is housed in a 16-lead QFN package.

Digital Potentiometers Feature Summary

• Four independent digital potentiometer circuits
• 256-tap resolution with linear taper for each circuit
• Non-volatile memory retains wiper position after power cycle
• SPI-compatible serial interface for control

Digital Potentiometers Applications

• Adjustable gain control in instrumentation amplifiers
• Voltage reference trimming
• Programmable filter frequency adjustment
• LED brightness control

Digital Potentiometers Procurement Notes

Verify the specific suffix 'UFR16Z' against the manufacturer's current datasheet to confirm pinout compatibility and package dimensions. Confirm RoHS compliance status as per the latest production change notices. Ensure the source document explicitly lists this part number to avoid confusion with similar XDCP series members.

Digital Potentiometers Selection Notes

Select this component when four isolated digital pots are required within a single package. The 256-tap resolution offers fine adjustment granularity. Verify that the system voltage falls within the ±2.25V to 5.5V range. Check if the SPI interface timing requirements match the host microcontroller capabilities.

Digital Potentiometers Part Context

This part belongs to the ISL2242x family of low-power, low-noise digitally controlled potentiometers. It shares architectural similarities with other models in the series but differs in the number of circuits and package type. The UFR16Z designation specifically indicates the 16-lead QFN package variant.

Digital Potentiometers Replacement Considerations

Direct replacements may include other ISL2242x variants with compatible pinouts or functional equivalents from other manufacturers offering quad digital potentiometers with SPI interfaces and non-volatile memory.