ISL21070CIH320Z-TK

Overview

The ISL21070CIH320Z-TK is a micropower voltage reference IC manufactured by Renesas Electronics Corporation. It provides a fixed output voltage of 2.048V with an initial accuracy of ±0.25%. The device operates within a supply voltage range of 2.7V to 5.5V and draws a maximum operating current of 25µA. It features a temperature coefficient of 30ppm/°C and utilizes floating gate array technology. The component is housed in a SOT-23-3 package and supports a load current of up to 10mA.

Feature Summary

• Ultra-low power consumption with 25µA maximum operating current
• High precision fixed output voltage with ±0.25% initial accuracy
• Low temperature drift characterized by 30ppm/°C coefficient
• Compact SOT-23-3 surface-mount packaging

Applications

• Precision analog-to-digital converter (ADC) references
• Digital-to-analog converter (DAC) voltage standards
• Battery-powered instrumentation systems
• Portable measurement devices requiring low quiescent current

Procurement Notes

Verify the specific suffix 'TK' against the official Renesas datasheet to confirm tape-and-reel packaging specifications. Ensure the order quantity aligns with standard reel sizes if bulk procurement is required. Confirm that the SOT-23-3 footprint matches the target PCB design constraints. Check for any recent lifecycle status updates, as some sources indicate potential obsolescence for this specific part number variant.

Selection Notes

Select this component when system design demands minimal quiescent current alongside stable voltage regulation. The 2.048V output is suitable for interfacing with ADCs requiring precise reference levels. Consider the 30ppm/°C temperature coefficient for applications operating across moderate thermal ranges. The SOT-23-3 package is ideal for space-constrained portable electronics where board area is limited.

Part Context

This part belongs to the ISL21070 series of micropower voltage references from Renesas. The series is designed for applications requiring high stability and low power consumption. The ISL21070 family utilizes floating gate technology to achieve long-term stability and low noise characteristics. This specific model offers a fixed 2.048V output, distinguishing it from adjustable or other fixed-voltage variants in the lineup.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative voltage references based on pinout, output voltage, and current specifications before substitution.