ISL21060BFH625Z-TK

Overview

The ISL21060BFH625Z-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 ±1.0mV and a temperature coefficient of 10ppm/°C. The device operates within an input voltage range of 2.7V to 5.5V, drawing 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 output to be shut down via an active-high logic input, significantly reducing supply current drain during standby modes.
• Kelvin sensing capability with separate force and sense outputs enables remote voltage regulation for improved accuracy under load or over long traces.

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 indicates tape and reel packaging configuration. Confirm the BFH designation corresponds to the 2.500V output option with B-grade accuracy. Ensure the component matches the 6-lead SOT-23 package outline P6.064A. Check for RoHS compliance status as specified in the ordering information notes.

Selection Notes

Select this component when ultra-low power consumption is critical alongside high precision requirements. The FGA technology offers superior stability compared to standard bandgap references. Consider the Kelvin sensing pins if trace resistance impacts system accuracy. Evaluate the 300µs turn-on time against system sequencing requirements.

Part Context

This part belongs to the ISL21060 family of micropower voltage references manufactured by Renesas Electronics Corporation, formerly Intersil. The series utilizes floating gate CMOS processes to achieve performance characteristics distinct from conventional reference architectures. The BFH625 variant specifically targets applications requiring a stable 2.5V reference with tight tolerance specifications.

Replacement Considerations

ISL21060CFH625Z-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 enable pin affect the internal circuitry?

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

What is the purpose of the VOUTS and VOUTF pins?

These pins provide Kelvin sensing capability. VOUTF drives the voltage to the load, while VOUTS senses the actual voltage at the load point, compensating for voltage drops across PCB traces.