ISL21009DFB50ZR5314T

Overview

The ISL21009DFB50ZR5314T is a series voltage reference integrated circuit manufactured by Renesas Electronics Corporation. It provides a fixed output voltage of 5V with an initial accuracy tolerance of ±0.16%. The device operates within an input voltage range of 3.5V to 16.5V and delivers a maximum output current of 7 mA. Key electrical specifications include a temperature coefficient of 3ppm/°C, low noise performance of 4.5µVp-p from 0.1Hz to 10Hz, and 22µVrms from 10Hz to 10kHz. It consumes 180µA of supply current and functions reliably across a wide operating temperature range of -40°C to +125°C.

Feature Summary

• Provides stable fixed voltage output with high precision
• Features low noise characteristics for sensitive applications
• Operates over extended industrial temperature ranges

Applications

• Precision data acquisition systems
• High-resolution analog-to-digital converter references
• Calibration equipment requiring stable voltage sources

Procurement Notes

This component is identified as obsolete or end-of-life. Verification of availability through authorized distributors or surplus channels is required. Confirm the specific suffix ZR5314T matches the exact package and tape-and-reel configuration needed for production integration. Check for valid RoHS compliance documentation before procurement.

Selection Notes

Select this part when a 5V fixed reference with ±0.16% accuracy is required. Ensure the input voltage remains between 3.5V and 16.5V. Consider the 8-SOIC package constraints and thermal management for the -40°C to +125°C operating range. Verify that the 7 mA load capability meets system demands.

Part Context

The ISL21009 belongs to the FGA™ series of voltage references from Renesas. This series is designed for applications demanding high stability and low noise. The DFB50 variant specifically denotes the 5V output version in the 8-SOIC package. It serves as a critical reference element in signal chains where precision is paramount.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult manufacturer cross-reference guides for functionally equivalent alternatives if this obsolete part is required.