REF5030AID

Overview

The REF5030AID is a high-grade, fixed-output series voltage reference from the Texas Instruments REF50xx family. It provides a nominal output of 3V with an initial accuracy of ±0.05% and a maximum temperature coefficient of 3ppm/°C. The device operates within a wide input voltage range of 3.2V to 18V and supports a maximum output current of ±10mA. It features low noise performance (3μVPP/V) and excellent long-term stability (22ppm after 1000 hours in SOIC-8). Designed for surface-mount applications, it functions reliably across an operating temperature range of -40°C to 125°C.

Feature Summary

• High precision with ±0.05% initial accuracy and very low temperature drift of 3ppm/°C
• Low flicker noise performance suitable for sensitive analog signal paths
• Capable of both sourcing and sinking up to 10mA of output current
• Includes a dedicated temperature monitoring pin for system diagnostics

Applications

• Precision data acquisition systems
• Semiconductor test equipment
• Industrial process controls
• Medical instrumentation
• Pressure and temperature transmitters

Procurement Notes

Verify that the specific orderable part number matches the required package type, as the REF5030AID designation corresponds to the standard grade variant. Confirm the suffix indicates the correct packaging format (e.g., tube versus reel) if applicable to your assembly line requirements. Ensure compatibility with the specified 8-SOIC footprint dimensions during PCB layout planning.

Selection Notes

Select this component when high accuracy and low drift are critical for maintaining signal integrity in measurement circuits. The REF5030AID is appropriate for designs requiring a stable 3V reference with minimal thermal variation. Consider the ±10mA drive capability for direct interfacing with ADCs or sensor bridges without additional buffering stages.

Part Context

This device belongs to the REF50xx family of low-noise, very low drift precision voltage references. The family includes enhanced, high, and standard grades, offering various output voltages such as 2.048V, 2.5V, 4.096V, and 5V. All variants share similar architectural benefits, including wide input voltage support and robust long-term stability specifications.

Replacement Considerations

REF5030AI

FAQ

What is the function of Pin 3 on the REF5030AID?

Pin 3 is the TEMP pin, which provides a temperature-dependent output voltage. It has a sensitivity of 2.64 mV/°C and can be used for system temperature monitoring.

Can the REF5030AID sink current?

Yes, the device is capable of both sourcing and sinking current, with a maximum output current specification of ±10mA.