ISL21010CFH341Z-TK

Overview

The ISL21010CFH341Z-TK is a precision micropower bandgap voltage reference manufactured by Renesas Electronics Corporation. It provides a fixed output voltage of 4.096V with an initial accuracy of ±0.2%. The device operates within an input voltage range of 4.2V to 5.5V and delivers a maximum output current of 25mA. Key electrical characteristics include a temperature coefficient of 50ppm/°C, supply current of 100µA, low-frequency noise of 112µVp-p (0.1Hz to 10Hz), and RMS noise of 56µVrms. It functions across a wide operating temperature range from -40°C to +125°C.

Feature Summary

• Delivers high-precision voltage regulation with ±0.2% initial accuracy for stable reference applications.
• Features low dropout voltage capability allowing operation with minimal headroom between input and output.
• Provides robust current sourcing up to 25mA suitable for driving loads in portable systems.
• Ensures signal integrity through low noise performance and stable output over extended temperature ranges.

Applications

• Precision battery-powered instrumentation
• Portable medical electronics
• Data acquisition systems
• ADC reference supplies

Procurement Notes

Verify the specific suffix 'TK' against official manufacturer documentation to confirm tape-and-reel packaging details and quantity per reel. Ensure compatibility with SOT-23-3 surface mount assembly processes. Confirm RoHS compliance status and lead-free specifications prior to procurement. Cross-reference the full part number with distributor catalogs to validate availability and standard delivery timelines.

Selection Notes

Select this component when a fixed 4.096V reference is required with tight initial accuracy tolerances. Consider the 4.2V minimum input voltage requirement to ensure proper regulation under varying supply conditions. Evaluate the 100µA supply current against system power budgets for battery-operated designs. Verify that the SOT-23-3 package dimensions fit the available PCB space constraints.

Part Context

This part belongs to the ISL21010 series of micropower voltage references designed for space-constrained applications. It utilizes a bandgap architecture to maintain stability across industrial temperature ranges. The series offers multiple output voltage options, with this specific variant providing the common 4.096V level used in many digital-to-analog conversion circuits.

Replacement Considerations

Consult official substitution lists for compatible parts within the ISL21010 family or equivalent Renesas voltage references. Verify pinout compatibility and thermal characteristics before replacing. Generic equivalents may differ in noise performance or accuracy specifications.