MAX6021AEUR+T

Overview

The MAX6021AEUR+T is a precision series-mode voltage reference delivering a fixed output of 2.048V in an SOT-23-3 package. It features an initial accuracy of ±0.24% and a temperature coefficient under 20ppm/°C across the -40°C to +85°C range. The device draws a maximum quiescent supply current of 35μA with minimal variation relative to input voltage. It supports sourcing and sinking up to 500μA load current while maintaining stability with capacitive loads up to 2.2nF without external compensation.

Feature Summary

• Proprietary curvature-correction circuit combined with laser-trimmed thin-film resistors ensures high precision and low temperature drift.
• Series-mode architecture provides supply current virtually independent of input voltage, maximizing efficiency in battery-operated systems.
• Internally compensated design eliminates the need for external frequency-stability capacitors, saving board space.
• Capable of both sourcing and sinking load currents up to 500μA with low dropout voltage characteristics.

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 ordering. Confirm that the 'A' grade designation corresponds to the required ±0.24% initial accuracy specification. Ensure the operating environment remains within the specified -40°C to +85°C temperature range to maintain guaranteed performance parameters. Cross-reference the manufacturer's latest documentation for any potential product lifecycle changes or obsolescence notices.

Selection Notes

Select this component when a stable 2.048V reference is required in space-constrained designs utilizing SOT-23-3 packages. It is suitable for applications demanding low power consumption where supply current must remain minimal regardless of input voltage fluctuations. Consider this part if bidirectional current capability (sourcing/sinking) is necessary for the reference load. Verify that the required accuracy meets the ±0.24% threshold provided by the A-grade variant.

Part Context

This device belongs to the MAX6012/MAX6021/MAX6025/MAX6030/MAX6041/MAX6045/MAX6050 family of precision, low-power, low-dropout voltage references manufactured by Analog Devices Inc./Maxim Integrated. These devices share common architectural features including proprietary curvature correction and micropower operation. The MAX6021 specifically provides a 2.048V output, distinguishing it from other family members with different fixed voltage outputs.

Replacement Considerations

Other members of the MAX6012 family (e.g., MAX6025, MAX6030) offer similar electrical characteristics but provide different fixed output voltages. Direct pin-compatible replacements within the same family may be considered if the specific 2.048V output requirement can be adjusted. Verify that any substitute maintains the required accuracy grade and package type.