ISL23348WFRZ-T7A

Digital Potentiometers Overview

The ISL23348WFRZ-T7A is a quad, 128-tap, low voltage digitally controlled potentiometer (XDCP) manufactured by Intersil. It integrates four independent DCP cores, wiper switches, and control logic on a monolithic CMOS integrated circuit. The device operates with a supply voltage range of 2.7V to 5.5V and features an SPI Bus interface for digital control. It is housed in a QFN20 package and supports an operating temperature range from -40°C to +125°C.

Digital Potentiometers Feature Summary

• Quad architecture with four independent 128-tap resistive elements
• SPI Bus interface for digital control and configuration
• Integrated wiper switches and control logic
• Low voltage operation (2.7V to 5.5V) with low power consumption

Digital Potentiometers Applications

• Programmable gain amplifiers
• Voltage reference adjustment
• Digital potentiometer replacement for mechanical pots
• Calibration systems requiring precise resistance tuning

Digital Potentiometers Part Context

This component belongs to the ISL233xx/ISL234xx family of XDCP devices. The 'Q' or 'W' suffix typically denotes specific packaging or tape/reel variations within the QFN20 form factor. It serves as a digital alternative to traditional mechanical potentiometers in space-constrained applications.

Digital Potentiometers Replacement Considerations

Direct pin-compatible replacements include other members of the ISL233xx series such as the ISL23328 (dual channel) or ISL23418 (single channel), though channel count differs. Verify that the replacement device maintains the same 128-tap resolution and SPI compatibility.