ISL21009DFB50ZR5314

Overview

The ISL21009DFB50ZR5314 is a precision, low-noise voltage reference IC from the FGA™ series manufactured by Renesas Electronics Corporation. It provides a fixed output voltage of 5.000V with an initial accuracy of ±2.0mV. The device operates within an input voltage range of 3.5V to 16.5V and draws a maximum supply current of 180µA. It features a temperature coefficient of 10ppm/°C and delivers up to ±7.0mA of output current. Noise performance is specified at 4.5µVP-P (0.1Hz to 10Hz). The component is housed in an 8-lead SOIC package and supports an operating temperature range of -40°C to +125°C.

Feature Summary

• Combines high precision with low noise characteristics for stable reference applications
• Supports wide input voltage range suitable for various power supply configurations
• Offers low quiescent current consumption for energy-efficient designs
• Provides robust output drive capability with rail-to-rail output swing

Applications

• High resolution analog-to-digital and digital-to-analog converters
• Precision digital meters and instrumentation equipment
• Industrial process control systems
• Battery management and monitoring circuits

Procurement Notes

Verify the specific suffix codes against official Renesas documentation to confirm exact output voltage, accuracy grade, and temperature rating. Confirm package type and lead finish specifications match design requirements. Check for end-of-life status or alternative recommendations as older Intersil-derived parts may have limited availability. Ensure RoHS compliance matches project environmental standards.

Selection Notes

Select this component when a fixed 5V reference with high initial accuracy is required. Consider the 10ppm/°C temperature coefficient for thermal stability needs. Evaluate the 180µA supply current against system power budgets. Ensure the 8-SOIC package fits the PCB layout constraints. Verify that the ±7.0mA output current meets load requirements without excessive self-heating.

Part Context

This part belongs to the ISL21009 family of high-voltage input precision voltage references originally developed by Intersil and now managed by Renesas. The FGA™ series is designed for applications demanding low noise and high stability. The specific model indicates a 5.000V output variant with defined accuracy and packaging options typical of industrial-grade semiconductor components.

Replacement Considerations

Consult official Renesas substitution guides for direct equivalents. Verify pin compatibility and electrical parameters before replacing. No public substitute part numbers are confirmed in the provided data.