ISL23328WFRUZ-TK

Digital Potentiometers Overview

The ISL23328WFRUZ-TK is a dual-channel, low-voltage digitally controlled potentiometer (DCP) manufactured by Renesas Electronics. It features two independent potentiometers with linear taper and 128 tap positions per channel. The device utilizes an I2C serial interface for communication and operates within a supply voltage range of 1.7 V to 5.5 V. Key electrical parameters include a typical wiper resistance of 70 ohms and a power supply current of 3 µA. The component is housed in a 16-lead uTQFN package measuring 2.6 x 1.8 mm and supports an operating temperature range from -40°C to +125°C.

Digital Potentiometers Feature Summary

• Dual-channel configuration with 128 taps per potentiometer
• I2C serial interface with selectable slave addresses
• Volatile memory storage for wiper position
• Linear resistance taper with ±20% tolerance

Digital Potentiometers Applications

• Power supply margining
• Trimming sensor circuits
• Gain adjustment in battery-powered instruments
• RF power amplifier bias compensation

Digital Potentiometers Procurement Notes

Verify the specific suffix 'TK' against the official datasheet to confirm tape-and-reel packaging specifications. Confirm availability status as distribution channels may list limited stock or end-of-life conditions for this part number. Ensure the selected variant matches the required pinout and thermal characteristics for the target PCB design.

Digital Potentiometers Selection Notes

Select this component when a dual-channel digital potentiometer with I2C control is required. The 128-tap resolution provides sufficient granularity for most analog trimming applications. Verify that the volatile memory type aligns with system requirements, as wiper settings are lost upon power cycle. Ensure the 1.7 V minimum supply voltage meets the lowest operating voltage of the target system.

Digital Potentiometers Part Context

This part belongs to the ISL233xx series of low-voltage DCPs. It shares architectural similarities with single-channel variants like the ISL23318 but offers dual channels in a compact footprint. The uTQFN package facilitates surface-mount assembly in space-constrained designs. It serves as a solid-state replacement for mechanical potentiometers in precision adjustment applications.

Digital Potentiometers Replacement Considerations

Publicly confirmed substitute part numbers for the ISL23328WFRUZ-TK were not found in the provided source material. Cross-reference with other dual-channel I2C DCPs from the same manufacturer family if available.