MAX6021AEUR-T

Overview

The MAX6021AEUR-T is a precision, low-power, low-dropout voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 2.048V with an initial accuracy better than 0.2% and a maximum temperature coefficient of 15ppm/°C. The device operates within a supply voltage range of 2.5V to 12.6V and draws a quiescent supply current of 35μA maximum. It features a SOT-23-3 surface-mount package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Proprietary curvature-correction circuit combined with laser-trimmed thin-film resistors ensures high precision and stability across temperature variations.
• Series-mode architecture eliminates the need for external biasing resistors and compensation capacitors, reducing board space requirements.
• Capacitive-load stability allows operation with loads ranging from 0 to 2.2nF without oscillation.
• Supply current remains virtually independent of input voltage, optimizing efficiency in battery-operated systems.

Applications

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

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and RoHS compliance status. Confirm availability through authorized Analog Devices distributors as stock levels fluctuate. Ensure the selected variant matches the required output voltage and accuracy grade for your design specifications before finalizing procurement orders.

Selection Notes

Select this component when a stable 2.048V reference is required in space-constrained designs utilizing SOT-23-3 packages. Consider its micropower consumption for battery-powered applications where minimizing quiescent current is critical. Evaluate the low dropout characteristics if the system operates near minimum supply voltage thresholds.

Part Context

This part belongs to the MAX6012/MAX6021/MAX6025/MAX6030/MAX6041/MAX6045/MAX6050 family of precision voltage references. All members share similar architectural features, including curvature correction and low dropout capabilities, differing primarily in their fixed output voltage levels and specific accuracy grades.

Replacement Considerations

Direct substitutes within the same family include MAX6021BEUR+T (B-grade accuracy). Cross-family replacements require matching output voltage, package footprint, and electrical performance specifications such as temperature coefficient and quiescent current limits.