ISL22512WFB8Z-TK

Digital Potentiometers Overview

The ISL22512WFB8Z-TK is a single-channel digital potentiometer IC manufactured by Renesas Electronics Corporation, formerly Intersil. It features a 10 kOhm resistance value with a linear taper and 16 tap positions for precise adjustment. The device utilizes a push-button interface for control and incorporates non-volatile memory to retain the wiper setting upon power loss. Operating within a supply voltage range of 2.7 V to 5.5 V, it draws a typical current of 150 uA. The component is housed in an 8-lead SOIC surface-mount package and supports operation across an extended temperature range from -40°C to +125°C.

Digital Potentiometers Feature Summary

• 10 kOhm resistance with linear taper and 16 discrete tap positions
• Non-volatile memory retains wiper position after power cycle
• Push-button interface for direct user control without microcontroller
• Wide operating voltage range from 2.7 V to 5.5 V

Digital Potentiometers Applications

• Audio volume control and tone adjustment circuits
• Calibration of sensor offsets and gain settings
• Adjustable reference voltage generation
• User interface potentiometer replacement in embedded systems

Digital Potentiometers Procurement Notes

Verify the specific suffix 'TK' against the official datasheet to confirm tape-and-reel packaging specifications and quantity per reel. Ensure the ordering part number matches the exact resistance tolerance and temperature grade required for the target application environment. Cross-reference the manufacturer designation as Renesas/Intersil for accurate documentation retrieval.

Digital Potentiometers Selection Notes

Select this component when a non-volatile, button-controlled digital potentiometer is required. The 16-tap resolution may be insufficient for high-precision applications requiring finer steps; consider higher-resolution alternatives if necessary. Verify that the 20% resistance tolerance meets the circuit requirements, as tighter tolerances are not standard for this series.

Digital Potentiometers Part Context

This component belongs to the ISL23511/ISL22512 family of digital potentiometers. While similar in form factor and interface to the ISL23511, the ISL22512 specifically offers non-volatile storage, distinguishing it from volatile counterparts in the same package. It serves as a drop-in replacement for mechanical potentiometers in space-constrained designs.

Digital Potentiometers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Engineers should consult the manufacturer's cross-reference tools or equivalent product guides for verified pin-compatible alternatives.