MAX952ESA+

Overview

The MAX952ESA+ is an ultra-low-power, single-supply integrated circuit combining a decompensated operational amplifier, a comparator with internal hysteresis, and a precision bandgap reference within an 8-pin SOIC package. It operates from a 2.7V to 7V supply with a typical current of 7μA. The op amp offers 125kHz bandwidth and stability for gains of 10V/V or greater. Both the op amp and comparator feature rail-to-rail outputs and input ranges extending to ground.

Feature Summary

• Combines a decompensated op amp, comparator, and 1.2V reference in one device
• Ultra-low power consumption with 7μA typical supply current
• Rail-to-rail inputs and outputs for maximum dynamic range
• Internal ±3mV comparator hysteresis ensures clean switching

Applications

• Smart card systems
• Battery-powered portable instruments
• Low-frequency local-area alarms and detectors
• Photodiode preamplifiers
• Infrared receivers for remote controls

Procurement Notes

Verify the specific suffix 'ESA+' against the manufacturer's official documentation to confirm the exact temperature grade and RoHS compliance status. Ensure that the ordering information matches the required package type and electrical characteristics for your design.

Selection Notes

Select this component when system design requires a combined amplification, threshold detection, and voltage reference solution in a minimal footprint. The decompensated op amp architecture is suitable for applications requiring higher bandwidth at unity gain configurations compared to standard micropower alternatives.

Part Context

This device belongs to the MAX951–MAX954 family of ultra-low-power mixed-signal ICs. While sharing similar power profiles and packaging, the MAX952 is distinct due to its decompensated operational amplifier optimized for gains of 10V/V or greater, unlike the unity-gain stable variants in the same series.

Replacement Considerations

Consult the official datasheet selector guide for pin-compatible alternatives such as the MAX951, MAX953, or MAX954. Verify that any substitute matches the specific op amp stability requirements and reference voltage availability needed for the application.

FAQ

What is the typical supply current for the MAX952?

The typical supply current is 7μA.

Is the operational amplifier in the MAX952 unity-gain stable?

No, the MAX952 features a decompensated op amp that is stable for gains of 10V/V or greater.

Does the MAX952 include an internal voltage reference?

Yes, it includes an internal 1.2V ±2% bandgap reference connected to the comparator's inverting input.