MAX6025AEUR-T

Overview

The MAX6025AEUR-T is a precision, low-power, low-dropout voltage reference in a miniature SOT23-3 surface-mount package. It provides a fixed output of 2.5V with an initial accuracy of ±0.2% and a temperature coefficient of 15ppm/°C (max) over the -40°C to +85°C range. The device draws a maximum quiescent supply current of 35μA and supports ±500μA source/sink currents. It operates within an input voltage range of 2.7V to 12.6V, features a dropout voltage of 100mV at 500μA load, and remains stable with capacitive loads up to 2.2nF.

Feature Summary

• Utilizes proprietary curvature-correction circuitry and laser-trimmed thin-film resistors for high precision.
• Series-mode topology eliminates the need for external biasing resistors required by shunt references.
• Internally compensated design ensures stability without requiring external compensation capacitors.
• Ultra-low supply current that remains virtually independent of changes in the applied supply 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 tape-and-reel packaging when sourcing. Confirm the 'A' grade designation matches the required 0.2% initial accuracy specification. Ensure the manufacturer is identified as Analog Devices Inc. or Maxim Integrated, noting the corporate acquisition history. Cross-reference the RoHS status if environmental compliance is mandatory for the target assembly process.

Selection Notes

Select this component for applications requiring a compact footprint and minimal power consumption. The SOT23-3 package is suitable for space-constrained designs. The series-mode architecture offers superior efficiency compared to shunt references by avoiding wasted current through external resistors. Verify that the system's input voltage remains above the minimum dropout threshold during operation.

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 architectural features, differing primarily in their fixed output voltage levels. The MAX6025 specifically provides a 2.5V output, bridging the gap between lower voltage options like the MAX6012 and higher voltage options like the MAX6041.

Replacement Considerations

The TSM6025AEUR+ from Silicon Labs is documented as a pin-for-pin alternate source for the MAX6025. Verify electrical parameter compatibility before substitution.

FAQ

Does the MAX6025 require an external capacitor for frequency stability?

No, the device is internally compensated and stable with capacitive loads ranging from 0 to 2.2nF.

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

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