ISL23428UFRUZ-T7A

Digital Potentiometers Overview

The ISL23428UFRUZ-T7A is a dual, low-voltage, digitally controlled potentiometer manufactured by Renesas Electronics Corporation. It features a 50k Ohm resistance value with 128 taps per channel and utilizes an SPI interface for control. The device operates within a supply voltage range of 1.2V to 5.5V and is housed in a 16-UTQFN package measuring 2.6x1.8 mm. It is classified as volatile memory type.

Digital Potentiometers Feature Summary

• Dual-channel configuration with 128-tap resolution for precise digital adjustment
• SPI bus interface compatibility for standard digital communication
• Low voltage operation supporting systems from 1.2V to 5.5V
• Compact surface-mount packaging suitable for space-constrained designs

Digital Potentiometers Applications

• Programmable gain amplifiers
• Voltage reference adjustments
• Sensor biasing circuits
• Audio volume control applications

Digital Potentiometers Procurement Notes

Verify the specific suffix T7A indicates tape and reel packaging when sourcing components. Confirm that the UTQFN package dimensions match the design footprint requirements. Ensure the volatile memory characteristic aligns with system power-loss behavior expectations. Cross-reference the manufacturer part number against authorized distributor catalogs to guarantee authenticity and traceability.

Digital Potentiometers Selection Notes

Select this component when dual independent digital potentiometers are required in a minimal footprint. The 50k Ohm resistance value suits moderate impedance applications. The SPI interface simplifies microcontroller integration compared to parallel or I2C alternatives. Consider the volatile nature of the wiper position if non-volatile storage is critical for the application.

Digital Potentiometers Part Context

This model belongs to the ISL23428 family of digitally controlled potentiometers. It shares architectural similarities with other Renesas XDCP devices but is distinguished by its specific 16-pin UTQFN package and dual-channel capability. The series is designed for low-power, low-noise applications requiring precise resistance tuning without mechanical moving parts.

Digital Potentiometers Replacement Considerations

ISL23428TFRUZ-T7A offers similar electrical characteristics but may differ in package type or marking. Verify pinout compatibility before substitution. Other family members like ISL23418 provide single-channel options. Ensure any replacement maintains the 128-tap resolution and SPI interface protocol.