MAX6125ESA+

Overview

The MAX6125ESA+ is a low-dropout, micropower three-terminal voltage reference providing a fixed 2.5V output in an 8-pin SO package. It operates with a supply voltage range of 2.7V to 12.6V and draws a quiescent current of approximately 75µA, which remains virtually independent of input voltage variations. The device features an initial accuracy of ±1% and a typical temperature coefficient of 15ppm/°C. Designed for operation across a temperature range of -40°C to +85°C, it offers stable performance for capacitive loads up to 10nF without requiring external output capacitors.

Feature Summary

• Low dropout voltage capability of 200mV enables efficient operation in 3V and 5V systems
• Micropower consumption with supply current virtually independent of input voltage variations
• Stable operation guaranteed for all capacitive loads up to 10nF without additional components

Applications

• Battery-powered systems
• Portable and hand-held equipment
• Data-acquisition systems
• Instrumentation and process control

Procurement Notes

Verify the component matches the exact part number MAX6125ESA+. Confirm the manufacturer is Analog Devices Inc./Maxim Integrated. Ensure the package type is 8-SOIC. Check RoHS compliance status if required by your manufacturing standards. Validate that the operating temperature range meets your specific application requirements.

Selection Notes

Select this component when a fixed 2.5V precision reference is needed in an 8-pin surface-mount package. Consider its low quiescent current for battery-operated designs where power efficiency is critical. Evaluate the 200mV dropout voltage against your minimum input supply constraints. Verify that the ±1% initial accuracy aligns with your system's tolerance requirements.

Part Context

This component belongs to the MAX61xx family of low-cost, low-dropout voltage references manufactured by Maxim Integrated, now part of Analog Devices. The family includes variants with different fixed output voltages (4.096V, 4.5V, 5.0V) and an adjustable version (MAX6160). These devices share similar architectural characteristics, focusing on micropower operation and stability across varying load conditions.

Replacement Considerations

Direct substitutes within the same family include MAX6141ESA+, MAX6145ESA+, and MAX6150ESA+, provided the output voltage difference is acceptable for the circuit design.