MAX972CPA+

Comparators Overview

The MAX972CPA+ is a dual-channel, ultra-low-power analog comparator housed in an 8-pin plastic DIP package. 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 open-drain outputs capable of sinking current to the negative supply rail, with a maximum output voltage range of 0V to 11V. Key electrical specifications include a typical propagation delay of 12µs at 10mV overdrive, a maximum supply current of 4µA, and an input offset voltage of ±10mV. The commercial temperature range is specified from 0°C to +70°C.

Comparators Feature Summary

• Ultra-low quiescent current consumption suitable for battery-powered applications
• Open-drain outputs allow wire-OR configurations and level translation
• Wide common-mode input voltage range extending to the negative supply rail
• Operates on single or dual power supplies within specified voltage limits

Comparators Applications

• Battery-powered threshold detectors
• Window comparators for voltage monitoring
• Level translators between different logic families
• Oscillator circuits requiring low power consumption

Comparators Procurement Notes

Verify the specific suffix 'CPA' corresponds to the commercial temperature range (0°C to +70°C) and 8-pin PDIP package. Confirm RoHS compliance status through official manufacturer documentation. Ensure the ordering part number matches the exact pin configuration and package style required for the target PCB footprint. Cross-reference with authorized distributors for availability as stock levels vary.

Comparators Selection Notes

Select this component when dual comparators are needed with minimal power draw. The open-drain output requires an external pull-up resistor for proper high-state operation. Consider the 12µs propagation delay if high-speed switching is critical. Verify that the input signal range stays within the guaranteed common-mode limits relative to the supply rails. Check if internal reference or hysteresis features are unnecessary, as this variant lacks them.

Comparators Part Context

This device belongs to the MAX971–MAX974 family of micropower comparators. Unlike the MAX971 or MAX973, the MAX972 does not include an internal precision voltage reference or programmable hysteresis circuitry. It provides two independent comparator channels in a compact 8-pin package. The family shares similar power characteristics but varies in channel count and integrated features like references.

Comparators Replacement Considerations

The MAX972EPA+ serves as a direct replacement for extended temperature range requirements (-40°C to +85°C). Other family members like the MAX971 or MAX973 offer additional features such as internal references but may require circuit adjustments due to functional differences.