ISL22511UFB8Z

Digital Potentiometers Overview

The ISL22511UFB8Z is a single, low-noise, low-power digital potentiometer manufactured by Renesas Electronics Corporation. It features 32 taps and is controlled via push buttons. The device operates with a supply voltage range of 2.7V to 5.5V and offers end-to-end voltages from 0V to Vcc. It includes a standby current of 3µA and total resistance values of 10kΩ or 50kΩ. The component is housed in an 8-lead SOIC or 10-lead uTQFN (2.1mm x 1.6mm) package and is Pb-Free compliant.

Digital Potentiometers Feature Summary

• Solid-state non-volatile potentiometer with push-button control for single or automatic wiper position adjustment
• Low power consumption with 3µA standby current at Vcc=2.7-5.5V
• Available in 10kΩ and 50kΩ total resistance values
• Compact packaging options including 8-pin SOIC and 10-lead uTQFN

Digital Potentiometers Applications

• LCD display bias control
• DC bias adjustment
• Laser diode bias control
• Voltage regulator output control
• Computer touch screen calibration

Digital Potentiometers Procurement Notes

Verify the specific resistance value (10kΩ or 50kΩ) required for the application, as the base part number may not specify this. Confirm the package type (SOIC vs. uTQFN) matches the PCB footprint. Ensure the supplier provides RoHS compliance documentation. Check for any manufacturer-specific ordering suffixes that might indicate temperature grade or tape-and-reel quantity.

Digital Potentiometers Selection Notes

Select the ISL22511UFB8Z when manual or semi-automatic adjustment of resistance is needed without microcontroller intervention. Choose the 10kΩ variant for lower power applications and the 50kΩ variant for higher impedance circuits. Consider the uTQFN package for space-constrained designs requiring a profile height of 1.6mm. Verify that the 32-tap resolution meets the precision requirements of the target circuit.

Digital Potentiometers Part Context

The ISL22511 is part of Renesas' XDCP (eXtreme Digital Control Potentiometer) family. It was originally developed by Intersil Corporation before the company's acquisition by Renesas. This series is designed for applications requiring reliable, non-volatile resistance adjustment with minimal external components.

Digital Potentiometers Replacement Considerations

Direct replacements include the ISL22511UFB8Z from other distributors if sourced from the same manufacturing line. Cross-model alternatives like the AD8400 series from Analog Devices offer similar functionality but require different control interfaces. Verify pin compatibility and electrical specifications before substituting.