ISL23418TFUZ

Digital Potentiometers Overview

The ISL23418TFUZ is a single, volatile, low-voltage digitally controlled potentiometer (DCP) manufactured by Renesas Electronics. It features 128 taps and operates via an SPI bus interface. The device integrates a DCP core with wiper switches and control logic. It supports a supply voltage range of 1.7V to 5.5V and operates within a temperature range of -40°C to +125°C. The component is housed in a 10-lead MSOP package.

Digital Potentiometers Feature Summary

• Single channel with 128 resistive taps
• SPI serial interface for wiper position control
• Volatile memory retains settings only while powered
• Operates on supply voltages from 1.7V to 5.5V

Digital Potentiometers Applications

• Programmable gain amplifiers
• Voltage reference adjustment
• Sensor biasing and calibration
• Audio volume control

Digital Potentiometers Procurement Notes

Verify the specific suffix 'TFUZ' against official Renesas documentation to confirm tape-and-reel packaging versus tube packaging, as standard listings often specify 'UFUZ'. Confirm RoHS compliance status directly with the manufacturer or authorized distributors prior to procurement.

Digital Potentiometers Selection Notes

Select this component when a single-channel digital potentiometer with SPI control is required. Ensure the application tolerates volatile storage, as wiper positions reset upon power loss. Verify that the system logic levels are compatible with the 1.7V to 5.5V operating range without level shifting.

Digital Potentiometers Part Context

This part belongs to the ISL23418 family of XDCP™ devices. It shares functional similarities with the ISL23318 but differs in interface type, utilizing SPI instead of I2C. The TFUZ suffix typically denotes a specific packaging variant, such as tape and reel, distinct from the standard UFUZ tube packaging.

Digital Potentiometers Replacement Considerations

Direct replacements include other ISL23418 variants with different packaging suffixes. For I2C interfaces, consider the ISL23318 series. Always verify pin compatibility and electrical specifications before substituting.