REF5045ID

Overview

The REF5045ID is a precision series voltage reference IC manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It provides a fixed output voltage of 4.5 V with an initial accuracy tolerance of ±0.05%. The device operates within an input voltage range of 4.7 V to 18 V and supports a maximum output current of 10 mA. Key performance metrics include a temperature coefficient of 3 ppm/°C and low noise characteristics of 13.5 µVpp/V from 0.1 Hz to 10 Hz. It functions reliably across a wide operating temperature range from -40°C to +125°C.

Feature Summary

• Delivers high-precision fixed voltage output with tight initial accuracy tolerance for sensitive measurement applications.
• Features very low drift characteristics over temperature variations to maintain stability in varying thermal environments.
• Incorporates low-noise design specifications suitable for reducing signal interference in precision analog circuits.

Applications

• High-resolution data acquisition systems requiring stable reference voltages
• Precision instrumentation and sensor signal conditioning circuits
• Medical equipment utilizing accurate analog-to-digital conversion

Procurement Notes

Verify the specific suffix ID indicates the SOIC-8 package configuration when sourcing replacements. Confirm that the component meets RoHS3 compliance standards required for your manufacturing process. Check humidity sensitivity level (MSL 2) requirements for storage and reflow soldering profiles. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Selection Notes

Select this component when a fixed 4.5 V reference is required with high initial accuracy and low temperature drift. Consider the 8-SOIC package constraints for PCB layout and thermal management. Evaluate the 10 mA output current capability against load requirements to ensure adequate drive strength without exceeding specifications.

Part Context

This part belongs to the REF5045 series of low-noise, very low drift precision voltage references from Texas Instruments. It shares architectural similarities with other members like the REF5045AID but offers tighter initial accuracy specifications. The series is designed for applications demanding superior long-term stability and low noise performance compared to standard bandgap references.

Replacement Considerations

• REF5045IDGKT

FAQ

What is the maximum input voltage supported by the REF5045ID?

The maximum series input voltage for the REF5045ID is 18 V.

Does the REF5045ID support operation at elevated temperatures?

Yes, the device is rated for operation up to a maximum junction temperature of +125°C.