ISL21010CFH320Z-TK

Overview

The ISL21010CFH320Z-TK is a precision series voltage reference IC manufactured by Renesas Electronics Corporation. It provides a fixed output voltage of 2.0V with an initial accuracy of ±0.2%. The device operates within an input voltage range of 3.4V to 5.5V and draws a supply current of 100µA. It features low noise characteristics, specified as 95µVp-p in the 0.1Hz to 10Hz band and 40µrms from 10Hz to 10kHz. The unit supports a maximum source current of 25mA and sink current of 118mA, with a temperature coefficient of 15ppm/°C.

Feature Summary

• Provides high-precision fixed voltage output with tight initial accuracy tolerance
• Features ultra-low noise performance suitable for sensitive analog signal chains
• Supports bidirectional current sourcing and sinking capabilities
• Operates efficiently with low quiescent current consumption

Applications

• Battery management and monitoring systems
• Portable instrumentation requiring stable reference voltages
• Consumer and medical electronics
• Industrial control loops and compensation networks
• LED and diode supply regulation circuits

Procurement Notes

Verify the specific suffix Z-TK indicates tape and reel packaging when ordering. Confirm the output voltage variant corresponds to the required system design, as the base model family includes multiple fixed voltage options. Ensure compatibility with the SOT-23-3 surface mount package constraints. Check for any recent product change notices regarding labeling or manufacturing site updates.

Selection Notes

Select this component when a precise 2.0V reference is needed with minimal noise impact on downstream circuitry. Consider the ±0.2% initial accuracy for applications demanding tight voltage tolerances without external trimming. Evaluate the 15ppm/°C temperature coefficient against the operating environment's thermal profile. Ensure the load current requirements fall within the 25mA source and 118mA sink limits.

Part Context

This part belongs to the ISL21010 series of precision voltage references from Renesas. The series is designed for applications requiring stable, low-noise reference voltages in space-constrained environments. The CFH320 designation specifically identifies the 2.0V output variant packaged in a compact SOT-23-3 footprint, distinguishing it from other voltage outputs in the same family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.