MAX952ESA-T

Overview

The MAX952ESA-T is a single-supply integrated circuit combining a decompensated operational amplifier, a comparator, and an internal 1.2V bandgap reference within an 8-pin SO 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 internal 1.2V reference in one package
• Ultra-low power consumption with 7μA typical supply current
• Rail-to-rail inputs and outputs for maximum dynamic range
• Internal comparator hysteresis ensures clean switching

Applications

• Battery-powered portable instruments
• Low-frequency local-area alarms and detectors
• Photodiode preamplifiers
• Infrared receivers for remote controls
• Smoke detectors and safety sensors

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm the 'E' grade meets the -40°C to +85°C operating temperature requirements for your application environment. Ensure the SO-8 footprint matches your PCB design guidelines.

Selection Notes

Select this device over unity-gain stable variants when higher bandwidth is required at gains of 10V/V or greater. Consider the MAX951 if unity-gain stability is necessary instead. Evaluate the internal 1.2V reference accuracy against external reference needs to determine if the integrated solution suffices for your precision requirements.

Part Context

This component belongs to the MAX951–MAX954 family of ultra-low-power, single-supply mixed-signal ICs. The MAX952 specifically distinguishes itself by featuring a decompensated operational amplifier optimized for gains of 10V/V or greater, unlike the unity-gain stable MAX951.

Replacement Considerations

Official substitutes include other members of the MAX95x family such as the MAX951, MAX953, or MAX954, depending on whether unity-gain stability or the absence of an internal reference is preferred. Verify pin compatibility and electrical characteristics before substitution.

FAQ

What is the gain stability requirement for the MAX952 op amp?

The MAX952 op amp is decompensated and is stable only for closed-loop gains of 10V/V or greater.

How does the MAX952 handle comparator noise immunity?

It includes ±3mV of internal hysteresis to ensure clean output switching even with slow-moving input signals.