ISL21080CIH320Z-TK

Overview

The ISL21080CIH320Z-TK is a fixed voltage reference from the Renesas ISL21080 series, housed in a surface-mount SOT-23 package with three pins. It provides a precise output of 3.0 V with an initial accuracy of ±0.2%. The device operates within an input voltage range of 2 V to 5.5 V and delivers an output current of up to 7 mA. Key performance metrics include a temperature coefficient of 50 ppm/°C, line regulation of 350 μV/V, and load regulation of 350 μV/mA. It functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Delivers high precision with ±0.2% initial accuracy for stable reference voltages
• Features low temperature drift at 50 ppm/°C for consistent thermal performance
• Supports wide input voltage operation from 2 V to 5.5 V
• Compact SOT-23-3 surface mount design for space-constrained applications

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Data acquisition systems requiring stable voltage references
• Portable instrumentation and test equipment
• Industrial process control signal conditioning

Procurement Notes

Verify the specific suffix '320' confirms the 3.0 V output variant when ordering. Ensure compatibility with standard SOT-23 footprint requirements on the PCB layout. Confirm RoHS compliance status if required by project specifications. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and traceability.

Selection Notes

Select this component when a fixed 3.0 V reference with high initial accuracy is required. Consider the 50 ppm/°C temperature coefficient for environments with significant thermal variations. Evaluate the 7 mA output current capability against the load requirements of the connected circuitry. Compare line and load regulation specs against system sensitivity needs.

Part Context

This part belongs to the ISL21080 family of precision voltage references from Renesas Electronics. The family includes various output voltage options distinguished by their suffixes. The CIH320 variant specifically targets applications needing a 3.0 V reference. It shares the same core architecture and packaging as other members of the series.

Replacement Considerations

ISL21080CIH330Z-TK offers a 3.0 V output but may differ in specific electrical tolerances or packaging details. ISL21080CIH250Z-TK provides a 2.5 V alternative. Verify pinout compatibility and thermal characteristics before substituting.