ISL22346WFV20Z

Digital Potentiometers Overview

The ISL22346WFV20Z is a quad digital potentiometer IC from the XDCP series, manufactured by Renesas Electronics. It integrates four independent 10 kOhm resistive elements with linear taper and 128 tap positions per channel. The device operates on a supply voltage range of 2.7 V to 5.5 V, with typical operating currents of 3 mA. It features non-volatile memory for wiper position storage and communicates via an I2C serial interface. Key electrical parameters include a temperature coefficient of ±50 ppm/°C, contact resistance of 70 Ohms, and a tolerance of ±20%. It is housed in a 20-TSSOP package and supports an extended industrial temperature range from -40°C to +125°C.

Digital Potentiometers Feature Summary

• Quad configuration with 128 taps per potentiometer
• Non-volatile memory retains wiper settings
• I2C serial interface with optional address selection
• Linear taper with 10 kOhm nominal resistance

Digital Potentiometers Applications

• Industrial process control systems requiring adjustable gain or reference voltages
• Consumer electronics for volume or brightness control
• Calibration circuits in measurement instrumentation
• Programmable filter frequency adjustments

Digital Potentiometers Procurement Notes

Verify the specific suffix 'V' indicates the 20-TSSOP package variant when sourcing. Confirm RoHS compliance status through official datasheets as regulatory requirements may vary by region. Check for lead time variations due to manufacturing lot changes or label updates documented in Product Change Notices (PCNs). Ensure compatibility with I2C bus voltage levels if interfacing with lower voltage logic.

Digital Potentiometers Selection Notes

Select this component when a quad-channel digital potentiometer with non-volatile storage is required. The 10 kOhm value suits moderate current applications, while the 128-tap resolution provides fine adjustment steps. The I2C interface minimizes pin count compared to parallel interfaces. Consider the ±20% tolerance and 70 Ohm contact resistance for precision applications. The wide operating temperature range makes it suitable for harsh industrial environments.

Digital Potentiometers Part Context

This part belongs to the ISL22346 family of digital potentiometers. Other variants in the series include different packaging options such as the WFRT20Z in a 20-TQFN package. The family shares core functionalities like non-volatile memory and I2C control but differs in physical footprint and thermal characteristics. The ISL22346WFV20Z specifically utilizes the TSSOP-20 form factor for surface mount assembly.

Digital Potentiometers Replacement Considerations

ISL22346WFRT20Z offers equivalent electrical specifications but uses a 20-TQFN package instead of TSSOP-20. Verify pinout compatibility and PCB layout adjustments before substitution. No other direct functional replacements are confirmed in the provided documentation.