ISL21060BFH630Z-TK

Overview

The ISL21060BFH630Z-TK is a precision voltage reference utilizing Intersil's proprietary Floating Gate Analog (FGA) technology. It provides a fixed output of 3.000V with an initial accuracy of ±1.0mV and a temperature coefficient of 10ppm/°C. The device operates within an input voltage range of 3.2V to 5.5V, consuming a maximum supply current of 40µA. It features a low output noise of 10µVP-P in the 0.1Hz to 10Hz bandwidth and supports an operating temperature range from -40°C to +125°C. Packaged in a 6-lead SOT-23, it includes an enable pin that reduces shutdown current to less than 1.5µA.

Feature Summary

• Proprietary Floating Gate Analog technology ensures high initial accuracy and extremely low temperature drift.
• Integrated disable feature allows the device to shut down the output and significantly reduce supply current drain.
• Kelvin sensing capability via separate force and sense outputs enables accurate remote voltage regulation.

Applications

• High resolution A/Ds and D/As
• Digital meters
• Bar code scanners
• Base stations
• Battery management/monitoring

Procurement Notes

Verify the specific ordering suffix 'TK' against manufacturer documentation to confirm reel specifications and tape-and-reel packaging details. Ensure the component marking matches the datasheet for the ISL21060BFH630 variant. Confirm RoHS compliance and moisture sensitivity level requirements prior to assembly.

Selection Notes

Select this part when high DC precision and low power consumption are critical. The FGA technology offers superior long-term stability compared to standard bandgap references. Consider the Kelvin sensing pins if trace resistance impacts accuracy. Verify the minimum input voltage requirement aligns with the system supply rails.

Part Context

The ISL21060 series represents a family of micropower voltage references designed for portable and battery-operated applications. Manufactured using a specialized floating gate CMOS process, these devices achieve performance characteristics distinct from traditional bandgap or zener-based references, focusing on ultra-low drift and minimal quiescent current.

Replacement Considerations

ISL21060CFH630Z-TK: Offers identical electrical parameters but with a relaxed initial accuracy of ±2.5mV and a higher temperature coefficient of 25ppm/°C.

FAQ

How does the disable feature affect the internal circuitry?

When disabled, the reference circuitry remains biased at a highly accurate state while shutting down the output, allowing for rapid re-enablement without full bias-up delays.

What is the purpose of the VOUTS and VOUTF pins?

These pins enable remote Kelvin sensing. VOUTF connects to the load via a wide trace, while VOUTS connects back to the load point to compensate for voltage drops across traces.