REF5050IDRG4

Overview

The REF5050IDRG4 is a fixed series voltage reference IC from Texas Instruments, delivering a precise 5V output. It features an initial accuracy of ±0.05% and a low temperature coefficient of 3 ppm/°C. The device operates within an input voltage range of 5.2V to 18V and supports a maximum output current of 10mA. Designed for surface-mount applications, it utilizes an 8-pin SOIC package. The component functions reliably across an extended temperature range from -40°C to +125°C, ensuring stable performance in demanding environments.

Feature Summary

• Provides high-precision fixed voltage regulation with tight initial accuracy tolerances.
• Exhibits very low drift characteristics suitable for sensitive analog signal chains.
• Operates efficiently with low quiescent current consumption.

Applications

• High-resolution data acquisition systems
• Precision instrumentation amplifiers
• Medical equipment requiring stable reference voltages

Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and lead-free construction as per Texas Instruments standards. Confirm the package type matches the required PCB footprint. Ensure the operating environment stays within the specified thermal limits. Check for any obsolescence notices or lifecycle changes directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a stable 5V reference is required with high accuracy. Consider the ±0.05% tolerance for precision applications. Evaluate the 10mA drive capability against load requirements. Compare the 3 ppm/°C drift against other options if extreme thermal stability is critical. Ensure the SOIC-8 package fits the design constraints.

Part Context

This part belongs to the REF50xx family of precision voltage references from Texas Instruments. These devices are designed for applications requiring low noise and low drift. The REF5050 specifically provides a 5V output, distinguishing it from other variants like the REF5045 or REF5030 which offer different voltage levels while sharing similar performance characteristics.

Replacement Considerations

Direct replacements include the REF5050ID and REF5050AID. Verify pin compatibility and electrical specifications match exactly. Cross-reference datasheets for any subtle differences in packaging or thermal performance before substitution.