MAX971CSA+T

Comparators Overview

The MAX971CSA+T is a single-channel, ultra-low-power analog comparator manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single supply voltage ranging from 2.5V to 11V or dual supplies of ±1.25V to ±5.5V. The device features an internal 1.182V precision voltage reference with ±1% accuracy and includes programmable hysteresis via the HYST pin. It utilizes open-drain outputs capable of wire-OR configurations and level translation up to 11V. The component is housed in an 8-pin SOIC package and supports surface-mount installation.

Comparators Feature Summary

• Ultra-low quiescent current consumption for battery-powered applications
• Internal bandgap voltage reference with programmable hysteresis control
• Open-drain output stage supporting wire-OR logic and level shifting
• Input common-mode range extends to the negative supply rail

Comparators Applications

• Battery-powered threshold detectors
• Window comparators for voltage monitoring
• Level translators between bipolar and single-ended signals
• Oscillator circuits requiring low power consumption

Comparators Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing this variant. Confirm that the '+T' designation aligns with the required reel quantity for automated assembly processes. Ensure the ordering code matches the commercial temperature range specifications documented in the manufacturer's official datasheet.

Comparators Selection Notes

Select this component for designs prioritizing minimal static power draw over high-speed switching performance. The integrated reference simplifies circuit topology by reducing external component count. Verify that the required propagation delay meets system timing constraints, as micropower devices typically exhibit slower response times compared to high-speed alternatives.

Comparators Part Context

This part belongs to the MAX971–MAX974 and MAX981–MAX984 family of micropower comparators. These devices are engineered for low-voltage operation and feature unique hysteresis implementation methods. The MAX971 variant specifically integrates a 1% accurate reference, distinguishing it from variants without internal references or those with different tolerance levels.

Comparators Replacement Considerations

The MAX971ESA+ serves as a direct functional replacement offering the same electrical characteristics but rated for the extended industrial temperature range of -40°C to +85°C instead of the commercial range.