ISL23328TFVZ

Digital Potentiometers Overview

The ISL23328TFVZ is a dual, volatile, low-voltage digitally controlled potentiometer (DCP) featuring an I2C bus interface. It integrates two independent potentiometers, each with 128 taps and a resistance of 100 kΩ. The device operates within a supply voltage range of 1.7 V to 5.5 V and consumes a typical operating current of 18 µA. It is housed in a 14-lead TSSOP package.

Digital Potentiometers Feature Summary

• Dual channel architecture with 128-tap resolution per channel
• I2C serial interface for digital control
• Low power consumption suitable for battery-operated systems
• Volatile memory retaining settings only during power

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 'TFVZ' against official Renesas documentation to confirm the 14-lead TSSOP package and industrial temperature grade. Ensure compatibility with system voltage levels between 1.7 V and 5.5 V. Confirm that volatile memory behavior aligns with application requirements, as data is lost upon power removal.

Digital Potentiometers Selection Notes

Select this component when dual independent digital potentiometry is required with I2C connectivity. The 100 kΩ resistance value and 128-tap resolution suit precision trimming and gain control tasks. Consider the low operating current for energy-sensitive designs. Verify that the TSSOP package fits the PCB layout constraints.

Digital Potentiometers Part Context

This part belongs to the ISL23328 series of digitally controlled potentiometers from Renesas Electronics. The series offers various tap counts and interfaces, with the TFVZ variant specifically denoting the dual-channel, 128-tap configuration in a TSSOP package. It is designed for applications requiring precise analog resistance control via digital commands.

Digital Potentiometers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult official Renesas resources or authorized distributors for cross-reference information.