ISL21080CIH330Z-TK

Overview

The ISL21080CIH330Z-TK is a fixed precision voltage reference from the Renesas ISL21080 series. It provides a 3V output with an initial accuracy of ±0.2% and a temperature coefficient of 50 ppm/°C. The device operates within a supply voltage range of 2V to 5.5V, delivering up to 7mA of output current. It features line regulation of 350 μV/V and load regulation of 350 μV/mA. Designed for surface mount installation, it utilizes a compact SOT-23-3 package measuring 2.92mm by 0.95mm. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Series topology architecture providing stable reference voltage
• High initial accuracy specification for precision applications
• Low dropout operation capability within specified input range
• Compact surface-mount packaging for space-constrained designs

Applications

• Analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage references
• Portable instrumentation requiring low power consumption
• Battery-powered measurement systems

Procurement Notes

Verify the specific suffix '330' confirms the 3.0V output variant, as the ISL21080 family offers multiple fixed voltage options. Confirm the 'TK' suffix indicates tape-and-reel packaging if reel quantity is required. Ensure the CIH designation matches the commercial temperature grade (-40°C to +85°C) needed for the application environment. Cross-reference the manufacturer part number with official Renesas documentation to confirm RoHS compliance status.

Selection Notes

Select this component when a fixed 3V reference is required with ±0.2% initial accuracy. The 50 ppm/°C temperature coefficient suits applications with moderate thermal variations. The 7mA output current drives moderate loads without external buffering. The SOT-23-3 package is suitable for high-density PCB layouts where board space is limited compared to larger packages.

Part Context

This part belongs to the ISL21080 series of micropower bandgap voltage references. The series is characterized by low noise and high DC accuracy in a small footprint. Other variants in the family include different output voltages such as 2.5V or 5V, identified by distinct middle digits in the part number. The series targets portable and battery-operated equipment requiring precise analog signal conditioning.

Replacement Considerations

ISL21080CIH320Z-TK: Provides 2.5V output instead of 3V. ISL21080CIH500Z-TK: Provides 5V output instead of 3V. Verify output voltage compatibility before substitution.