MAX953ESA+T

Overview

The MAX953ESA+T is a single-supply analog comparator and operational amplifier integrated into an 8-pin SOIC package. It operates within a supply voltage range of 2.4V to 7V, drawing a typical supply current of 5μA. The device features rail-to-rail outputs for both the op amp and comparator stages. Unlike the MAX951/MAX952, it does not include an internal reference voltage source. The op amp is unity-gain stable with a typical gain bandwidth product of 20kHz.

Feature Summary

• Integrates a micro-power operational amplifier and a high-impedance differential input comparator in a compact 8-pin package.
• Features rail-to-rail output stages that swing from the negative supply rail to within 1.6V of the positive rail.
• Includes internal comparator hysteresis to ensure clean output switching even with slow-moving input signals.
• Operates with ultra-low supply current while maintaining linearity under loaded conditions.

Applications

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

Procurement Notes

Verify the specific suffix '+T' corresponds to tape-and-reel packaging when sourcing components. Confirm the 'E' designation aligns with the required -40°C to +85°C operating temperature range. Ensure the ordering information matches the exact manufacturer part number to avoid discrepancies in RoHS compliance or package type.

Selection Notes

Select this component when a combined low-power op amp and comparator are needed without an internal reference voltage. It is suitable for applications requiring rail-to-rail output swings on a single supply. Consider the MAX951 or MAX952 if an internal bandgap reference is required instead.

Part Context

This device belongs to the MAX951–MAX954 family of ultra-low-power, single-supply amplifiers. While sharing similar power characteristics and package options, the MAX953 specifically omits the internal reference found in the MAX951/MAX952 variants. It is designed to extend battery life in portable instruments and industrial controls.

Replacement Considerations

The MAX953EUA+T serves as a pin-compatible alternative utilizing the μMAX package. For designs requiring an internal reference, the MAX951ESA+T provides equivalent functionality with added reference capabilities.