MAX6045AEUR+T

Overview

The MAX6045AEUR+T is a precision, low-power, low-dropout series-mode voltage reference in a miniature SOT23-3 surface-mount package. It provides a fixed output voltage of 4.5V with an initial accuracy of better than 0.2% and a temperature coefficient of less than 15ppm/°C over the -40°C to +85°C range. The device draws only 27μA of quiescent supply current and can source or sink up to 500μA of load current. It operates with an input voltage range from VOUT + 0.2V to 12.6V.

Feature Summary

• Proprietary curvature-correction circuit and laser-trimmed thin-film resistors ensure high precision and stability.
• Series-mode architecture eliminates the need for external biasing resistors required by shunt references.
• Internally compensated design remains stable with capacitive loads ranging from 0 to 2.2nF without external components.

Applications

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

Procurement Notes

Verify the specific part number against official Analog Devices documentation to confirm the 'A' grade accuracy and '+T' reel packaging designation. Ensure compatibility with the target PCB footprint for the SOT23-3 package. Confirm that the application environment stays within the specified -40°C to +85°C operating temperature range for guaranteed performance.

Selection Notes

Select this component when a fixed 4.5V reference is required in space-constrained designs. It is suitable for battery-powered systems due to its ultra-low quiescent current and independence from supply voltage variations. Consider the MAX6045 family if other voltage outputs like 4.096V or 5.0V are needed instead.

Part Context

This device 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 voltage levels. This family is designed for applications requiring high accuracy and low power consumption in small form factors.

Replacement Considerations

Direct functional substitutes within the same family include MAX6041AEUR+T (4.096V) and MAX6050AEUR+T (5.0V), provided the system voltage requirements align with those specific outputs. Cross-family replacements require verification of pin compatibility and electrical specifications.