MAX4042ESA

Instrumentation, Op Amps, Buffer Amps Overview

The MAX4042ESA is a dual-channel micropower operational amplifier from the MAX4040–MAX4044 family, manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +2.4V to +5.5V supply or dual ±1.2V to ±2.75V supplies. Key electrical parameters include a 90kHz gain-bandwidth product, 10µA supply current per amplifier, and 200µV input offset voltage. The device features rail-to-rail input and output capabilities, with outputs swinging to within 10mV of the rails under typical conditions. It is housed in an 8-pin SO package and functions over an extended temperature range of -40°C to +85°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail input and output stages designed for low-voltage single-supply operation
• Ultra-low power consumption with 10µA supply current per amplifier
• High open-loop gain and low input offset voltage for precision applications
• Unity-gain stable for capacitive loads up to 200pF

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered strain gauges
• Portable/battery-powered cellular phones
• Electronic equipment notebook computers
• Digital scales and PDAs

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Ensure compatibility with single-supply voltages between 2.4V and 5.5V. Confirm that the application does not require shutdown functionality, as this feature is exclusive to the MAX4041 and MAX4043 variants within the same family.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select the MAX4042ESA when a dual-channel configuration is required for space-constrained designs. It is suitable for general-purpose amplification where low power consumption is critical. Consider alternative models if shutdown capability or higher bandwidth is necessary. Ensure the load impedance allows for the specified rail-to-rail output swing characteristics.

Instrumentation, Op Amps, Buffer Amps Part Context

This component belongs to the MAX4040–MAX4044 series of micropower op amps. The MAX4042 specifically provides two independent amplifiers in an 8-pin package. It shares core specifications with the single (MAX4040/4041) and quad (MAX4044) versions but offers a balanced channel count for multi-sensor or signal conditioning tasks.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The MAX4042EUA serves as a pin-compatible replacement in the 8-pin µMAX package. Verify that the substitute maintains the same electrical characteristics and thermal performance requirements for the intended application.