ISL21080CIH325Z-TK

Overview

The ISL21080CIH325Z-TK is a fixed voltage reference IC from the Renesas ISL21080 series, manufactured by Renesas Electronics Corporation. It provides a precise output of 2.5V with an initial accuracy of ±0.1%. The device features a low temperature coefficient of 20 ppm/°C and operates within an input voltage range of 2.7V to 5.5V. It supports a maximum shunt current of 7mA and consumes a maximum supply current of 900nA. Packaged in a surface-mount SOT-23-3 format, it functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Delivers high-precision voltage referencing with ±0.1% initial accuracy for critical measurement applications.
• Features ultra-low power consumption with a maximum supply current of 900nA for energy-efficient designs.
• Provides stable performance over temperature variations with a low temperature coefficient of 20 ppm/°C.
• Utilizes a compact SOT-23-3 surface-mount package suitable for space-constrained PCB layouts.

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Data acquisition systems requiring stable voltage references
• Industrial process control instrumentation
• Medical diagnostic equipment

Procurement Notes

Verify the specific suffix 'Z-TK' against the manufacturer's latest datasheet to confirm tape-and-reel packaging and RoHS compliance status. Ensure the ordering part number matches the required 2.5V output variant, as the ISL21080 family includes multiple voltage options. Cross-reference the manufacturer code to distinguish between Renesas and Intersil branding origins if necessary for legacy documentation alignment.

Selection Notes

Select this component when a 2.5V reference is required with tight tolerance specifications. The 20 ppm/°C temperature coefficient makes it suitable for environments with moderate thermal fluctuations. Compare its 900nA quiescent current against higher-power alternatives if battery life is a primary constraint. Ensure the 7mA load capability meets the downstream circuit requirements without exceeding the device limits.

Part Context

This part belongs to the ISL21080 series of precision voltage references, designed for general-purpose applications requiring high accuracy. The series offers various fixed output voltages packaged in small form factors. The ISL21080CIH325Z-TK specifically targets the 2.5V segment, providing a balance of precision and low power consumption typical of modern mixed-signal system requirements.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Verify compatibility with alternative voltage references based on pinout, output voltage, and accuracy specifications before substitution.