REF3130AQDBZRQ1

Overview

The REF3130AQDBZRQ1 is an automotive-grade series voltage reference from Texas Instruments, designed for high precision and low power consumption. It delivers a fixed output of 3V with an initial accuracy of ±0.2% and a maximum temperature coefficient of 20ppm/°C. The device operates within an input voltage range of 3.05V to 5.5V and draws a supply current of 135µA. It supports a load current up to 10mA and functions reliably across a junction temperature range of -40°C to 125°C. Packaged in a compact SOT-23-3 surface-mount case, it meets AEC-Q100 standards for automotive applications.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for robust reliability in vehicle systems.
• High precision performance featuring ±0.2% initial accuracy and low temperature drift of 20ppm/°C.
• Ultra-low power consumption with a typical supply current of 135µA for energy-efficient operation.
• Compact SOT-23-3 package design enabling space-constrained printed circuit board layouts.

Applications

• Automotive sensor signal conditioning circuits requiring stable reference voltages.
• Data acquisition systems in vehicles needing precise analog-to-digital conversion references.
• Battery management systems utilizing accurate voltage monitoring and control.
• Instrumentation interfaces in automotive infotainment and safety modules.

Procurement Notes

Verify the specific suffix 'AQ' indicates automotive grade qualification distinct from commercial variants. Confirm the 'R' suffix denotes tape-and-reel packaging suitable for automated assembly processes. Ensure compatibility with standard SOT-23-3 footprints during schematic capture. Validate that the 3V output aligns with system requirements before finalizing procurement orders.

Selection Notes

Select this component when automotive reliability and high precision are critical for the application. The 3V output is suitable for single-supply ADCs and sensors operating within the specified input range. Consider the 135µA quiescent current for battery-powered designs where power efficiency is paramount. The SOT-23-3 package offers a small footprint ideal for dense PCB layouts in modern electronic devices.

Part Context

This part belongs to the REF31xx family of series voltage references from Texas Instruments. The family includes various output voltages such as 1.2V, 2.5V, and 3.3V, all sharing similar low-power and high-precision characteristics. The 'Q1' suffix specifically identifies the product as qualified for automotive use, ensuring compliance with stringent industry standards for durability and performance under varying environmental conditions.

Replacement Considerations

REF3130AIDBZR is the commercial grade equivalent without automotive qualification. REF3130AQDBZRG4 is the lead-free variant of the same automotive part. REF3133AQDBZRQ1 provides a 3.3V output instead of 3V. Verify pinout compatibility and thermal performance when substituting these alternatives.