ISL21060CFH625Z-TK

Overview

The ISL21060CFH625Z-TK is a precision voltage reference utilizing Intersil's proprietary Floating Gate Analog (FGA) technology. It provides a fixed output of 2.500V with an initial accuracy of ±2.5mV and a temperature coefficient of 25ppm/°C. The device operates within an input voltage range of 2.7V to 5.5V, consuming a maximum supply current of 40µA. It features a low noise profile of 10µVP-P in the 0.1Hz to 10Hz bandwidth and includes an active-high enable pin that reduces shutdown current to less than 1.5µA. Packaged in a 6-lead SOT-23, it supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Proprietary Floating Gate Analog technology ensures high initial accuracy and extremely low temperature drift without traditional bandgap limitations.
• Integrated disable feature allows the device to shut down the output while maintaining internal biasing, significantly reducing supply current drain.
• Kelvin sensing capability via separate Force and Sense outputs enables precise remote voltage regulation for long traces or higher current loads.

Applications

• High resolution analog-to-digital and digital-to-analog converters
• Precision digital meters and instrumentation equipment
• Battery management and monitoring systems

Procurement Notes

Verify the specific suffix Z-TK corresponds to tape-and-reel packaging as indicated in official ordering information. Confirm the 'C' grade designation matches the required ±2.5mV accuracy and 25ppm/°C temperature coefficient specifications. Ensure the component meets RoHS compliance requirements for your assembly process.

Selection Notes

Select this component when ultra-low power consumption is critical alongside high precision. The FGA technology offers superior stability compared to standard bandgap references. Consider the Kelvin sense pins if PCB trace resistance could impact load accuracy. Verify input voltage compatibility with the 2.7V minimum requirement for the 2.5V output variant.

Part Context

This part belongs to the ISL21060 family of precision voltage references manufactured by Renesas Electronics Corporation (formerly Intersil). The family utilizes unique floating gate CMOS processes to achieve performance characteristics distinct from conventional reference designs. The CFH625 variant specifically denotes the 2.500V output option with C-grade accuracy specifications.

Replacement Considerations

ISL21060BFH625Z-TK: Offers tighter initial accuracy of ±1.0mV and lower temperature coefficient of 10ppm/°C.

FAQ

How does the enable pin affect the internal circuitry?

When the enable pin is deactivated, the output shuts down and supply current drops below 1.5µA, but the internal reference circuitry remains biased at a highly accurate state for rapid reactivation.

What is the purpose of the VOUTS and VOUTF pins?

These pins provide Kelvin sensing capability. VOUTF connects directly to the load, while VOUTS senses the voltage at the load point, allowing the device to compensate for voltage drops across PCB traces.