MAX6012BEUR+T

Overview

The MAX6012BEUR+T is a precision series-mode voltage reference delivering a fixed 1.247V output in a compact SOT-23-3 package. It operates within an extended temperature range of -40°C to +85°C and draws a maximum quiescent supply current of 35μA, which varies by only 0.8μA/V across the input voltage range. The device provides ±500μA source/sink capability with a maximum initial accuracy of 0.48% and a temperature coefficient up to 30ppm/°C over the full operating range.

Feature Summary

• Proprietary curvature-correction circuitry combined with laser-trimmed thin-film resistors ensures high precision and low temperature drift.
• Series-mode architecture eliminates the need for external biasing resistors and allows supply current to remain virtually independent of input voltage.
• Internally compensated design guarantees stability with capacitive loads ranging from 0 to 2.2nF without requiring external compensation components.

Applications

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

Procurement Notes

Verify the specific suffix 'B' corresponds to the required 0.48% initial accuracy grade rather than the tighter 'A' grade. Confirm the '+T' designation indicates tape-and-reel packaging suitable for automated assembly processes. Ensure the SOT-23-3 footprint matches the target PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when space-constrained designs require a precision reference that does not necessitate external resistors or capacitors. The low dropout voltage and supply-independent current consumption make it suitable for battery-powered applications where efficiency is critical. Verify that the 1.247V output level aligns with system requirements compared to other family members offering different fixed voltages.

Part Context

This part belongs to the MAX6012/MAX6021/MAX6025/MAX6030/MAX6041/MAX6045/MAX6050 family of precision, low-power, low-dropout voltage references. All family members share identical pinouts, packages, and core architectural features, differing primarily in their fixed output voltage levels and slight variations in noise performance.

Replacement Considerations

Direct functional replacements within the same family include MAX6012AEUR+T for tighter accuracy specifications. Other voltage options such as MAX6021BEUR+T (2.048V) or MAX6030BEUR+T (3.000V) are pin-compatible but provide different reference levels.

FAQ

Does the MAX6012BEUR+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 external compensation capacitors.

How does the supply current behave relative to the input voltage?

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