REF3030AIDBZR

Overview

The REF3030AIDBZR is a precision, low-power series voltage reference from Texas Instruments. It provides a fixed output of 3V with an initial accuracy of ±0.2%. The device operates within an input voltage range of 3.05V to 5.5V and delivers a maximum output current of 25mA. It features a typical supply current of 42µA and a temperature coefficient of 75ppm/°C across the -40°C to +125°C operating range. Packaged in a compact SOT-23-3 surface-mount format, it maintains stability without external load capacitors.

Feature Summary

• Ultra-low dropout operation requiring only 1mV headroom above the output voltage for stable regulation under zero-load conditions.
• Intrinsic safety compatibility due to inherent stability without the need for external load capacitors.
• High precision performance characterized by tight initial accuracy and low temperature drift over extended industrial temperatures.

Applications

• Loop-powered industrial sensors such as pressure and temperature transmitters
• Portable battery-operated instrumentation and test equipment
• Medical devices requiring precise analog signal conditioning

Procurement Notes

Verify the specific suffix 'AIDBZR' against the manufacturer's latest datasheet to confirm pinout orientation and marking codes. Ensure the design accounts for the 3.05V minimum input requirement relative to the 3V output. Confirm RoHS compliance status matches project requirements. Validate thermal dissipation capabilities within the SOT-23 package for the intended ambient temperature range.

Selection Notes

Select this component when a fixed 3V reference is required in space-constrained designs. It is suitable for applications demanding high accuracy without external trimming. Consider the 25mA output capability if driving moderate loads directly. Evaluate the 75ppm/°C drift specification against system error budgets for wide temperature variations.

Part Context

This part belongs to the REF30xx family of bandgap voltage references designed for low power and high precision. The series is engineered for industrial and portable applications where size and power consumption are critical constraints. It serves as a stable reference for ADCs, DACs, and sensor interfaces in harsh environments.

Replacement Considerations

Cross-reference with other members of the REF30xx series for different voltage outputs or accuracy grades. Verify pin-to-pin compatibility with alternative manufacturers' offerings if supply chain diversification is necessary.