ISL22317TFRTZ

Digital Potentiometers Overview

The ISL22317TFRTZ is a dual, digitally controlled potentiometer manufactured by Renesas Electronics Corporation. It integrates two independent 10-bit wiper positions with nonvolatile memory for data retention. The device operates via an SPI serial interface and supports end-to-end resistance values of 10kΩ, 50kΩ, and 100kΩ. Key electrical characteristics include a typical wiper resistance of 40Ω and a maximum standby current of 5μA. It functions within a system voltage range of 2.7V to 5.5V and features 100-year data retention with 100,000 endurance cycles per register.

Digital Potentiometers Feature Summary

• Dual 10-bit digitally controlled potentiometers with 1024 resistor taps
• Nonvolatile memory stores wiper positions with power-on recall capability
• SPI serial interface for write, read, and transfer operations
• Operates on single supply voltages from 2.7V to 5.5V

Digital Potentiometers Applications

• Programmable gain amplifiers
• Voltage reference adjustment
• Audio volume control
• Offset trimming in signal conditioning circuits

Digital Potentiometers Procurement Notes

Verify the specific end-to-end resistance variant (10kΩ, 50kΩ, or 100kΩ) required for the design, as the base part number may denote different resistance options depending on the suffix configuration. Confirm package availability and moisture sensitivity level handling procedures prior to assembly.

Digital Potentiometers Selection Notes

Select this component when dual independent digital pots are needed in a compact footprint. Ensure the application requires SPI compatibility and nonvolatile storage. Verify that the 40Ω typical wiper resistance meets the circuit's impedance requirements.

Digital Potentiometers Part Context

This component belongs to the X9110/X9111 family of single and dual digitally controlled potentiometers. It serves as a solid-state alternative to mechanical potentiometers in applications requiring remote programmability and long-term stability without moving parts.

Digital Potentiometers Replacement Considerations

Direct pin-compatible substitutes within the same family include the ISL22316 (single channel) or ISL22318 (quad channel). Cross-model replacements require verification of interface compatibility and resistance tolerance specifications.