MAX6012AEUR+T

Overview

The MAX6012AEUR+T is a precision, low-dropout, micropower voltage reference from the MAX6012 family. It provides a fixed output voltage of 1.247V with an initial accuracy of ±0.32% and a maximum temperature coefficient of 20ppm/°C over the -40°C to +85°C range. The device operates on a supply voltage between 2.5V and 12.6V, drawing a quiescent current of 35μA maximum. It features internally compensated stability for capacitive loads up to 2.2nF and can source or sink up to 500μA of load current.

Feature Summary

• Proprietary curvature-correction circuit and laser-trimmed thin-film resistors ensure high precision and low temperature drift.
• Series-mode architecture eliminates the need for external biasing resistors and compensation capacitors.
• Supply current remains virtually independent of input voltage variations across the operating range.
• Capable of sourcing and sinking up to 500μA while maintaining stability with minimal dropout voltage.

Applications

• Hand-Held Equipment
• Data Acquisition Systems
• Industrial and Process-Control Systems
• Battery-Operated Equipment
• Hard-Disk Drives

Procurement Notes

Verify the specific suffix 'T' indicates reel packaging when ordering. Confirm the 'A' grade designation corresponds to the required ±0.32% initial accuracy and 20ppm/°C temperature coefficient specifications. Ensure the SOT-23-3 package footprint matches the design layout. Check for RoHS compliance status indicated by the '+' suffix in the part number.

Selection Notes

Select this component for applications requiring a stable 1.247V reference in space-constrained designs. The SOT-23-3 package minimizes board area by removing the need for external compensation capacitors. Ideal for battery-powered systems due to ultra-low quiescent current that does not vary significantly with supply voltage changes.

Part Context

This part belongs to the MAX6012/MAX6021/MAX6025/MAX6030/MAX6041/MAX6045/MAX6050 family of precision voltage references. All members share identical pinouts, packages, and core technologies, differing primarily in their fixed output voltages ranging from 1.247V to 5.000V. The MAX6012 specifically provides the lowest voltage option in this series.

Replacement Considerations

Other members of the MAX6012 family (MAX6021, MAX6025, etc.) are pin-compatible but offer different output voltages. Verify that the 1.247V output is suitable for the target application before substituting with other family variants.

FAQ

Does the MAX6012AEUR+T require an external capacitor for stability?

No, the device is internally compensated and stable with capacitive loads ranging from 0 to 2.2nF, eliminating the need for an external compensation capacitor.

How does the supply current behave with respect to input voltage?

The quiescent supply current is virtually independent of the supply voltage, varying by only 0.8μA/V across the specified input voltage range.