ISL23315TFUZ

Digital Potentiometers Overview

The ISL23315TFUZ is a single-channel digital potentiometer IC from the Renesas ISL23315 series. It features a 10 kOhm resistance value with a linear taper and 256 tap positions for precise adjustment. The device operates on a serial I2C interface and utilizes volatile brush memory to retain wiper settings during power cycles. It supports a supply voltage range of 1.7 V to 5.5 V, with a typical operating current of 18 uA at 3.3 V. The component is housed in an MSOP-10 package and is rated for operation between -40°C and +125°C.

Digital Potentiometers Feature Summary

• Single channel digital potentiometer with 10 kOhm nominal resistance and linear taper
• 256 discrete tap positions controlled via standard I2C serial interface
• Volatile wiper memory retains setting only while powered
• Wide supply voltage range from 1.7 V to 5.5 V with low 18 uA operating current

Digital Potentiometers Applications

• Programmable gain amplifiers requiring precise resistance adjustment
• Voltage reference trimming in measurement systems
• Audio volume control circuits using linear taper characteristics
• Sensor biasing and calibration networks

Digital Potentiometers Procurement Notes

Verify end-of-life status before procurement as the ISL23315 series may be discontinued by the manufacturer. Confirm availability through authorized distributors and check for alternative packages if the MSOP-10 form factor is not suitable for the target PCB layout.

Digital Potentiometers Selection Notes

Select this part when a single-channel, low-voltage digital potentiometer with I2C control is required. Ensure the application can tolerate volatile memory behavior, as wiper positions reset upon power loss. Verify that the 10 kOhm resistance and 256-step resolution meet the circuit's precision requirements.

Digital Potentiometers Part Context

The ISL23315TFUZ belongs to the ISL23315 family of digitally controlled potentiometers. This series offers various resistance values and packaging options. The TFUZ suffix typically denotes the specific resistance value, package type (MSOP-10), and tape-and-reel shipping configuration within the product line.

Digital Potentiometers Replacement Considerations

Check for direct pin-compatible substitutes within the ISL23315 series or newer generations from Renesas. Verify that any replacement maintains the same I2C addressability, voltage range, and memory volatility characteristics.