MAX922EPA

Comparators Overview

The MAX922EPA is a dual micro-power, low-voltage comparator housed in an 8-pin Plastic DIP package. It operates from a single +2.5V to +11V supply or a ±1.25V to ±5.5V dual supply. The device features two independent comparators with TTL/CMOS-compatible outputs capable of sourcing up to 40mA and sinking over 5mA. It draws less than 4μA supply current over the temperature range. The input voltage range extends from the negative supply rail to within 1.3V of the positive supply. Propagation delay is typically 12μs with 10mV overdrive.

Comparators Feature Summary

• Dual-channel architecture providing two independent comparator functions within a compact 8-pin footprint.
• Ultra-low quiescent current consumption suitable for battery-powered applications.
• Unique output stage design that continuously sources high current while eliminating crowbar switching glitches during transitions.
• TTL and CMOS compatible logic levels allowing direct interfacing with standard digital circuits.

Comparators Applications

• Battery-powered systems requiring minimal standby power
• Threshold detection circuits
• Window comparator configurations
• Oscillator circuits

Comparators Procurement Notes

Verify the specific suffix 'EPA' corresponds to the -40°C to +85°C extended temperature range and 8-pin Plastic DIP package. Confirm the manufacturer designation as Analog Devices Inc./Maxim Integrated. Ensure the component matches the exact part number to avoid confusion with variants lacking the internal reference or featuring different pinouts.

Comparators Selection Notes

Select this component when dual comparator functionality is required alongside ultra-low power consumption. It is appropriate for designs operating on single or dual supplies where input signals swing near the negative rail. Consider the 40mA source capability for driving loads directly without additional buffering. Verify that the absence of an internal reference does not conflict with circuit requirements compared to other family members.

Comparators Part Context

This device belongs to the MAX921–MAX924 family of micro-power comparators. Unlike the MAX921 and MAX923, the MAX922 does not include an internal bandgap voltage reference or a dedicated hysteresis control pin. It provides a cost-effective solution for applications needing two comparators without the overhead of integrated references.

Comparators Replacement Considerations

The MAX922CPA serves as a commercial grade alternative with a 0°C to +70°C temperature range. The MAX922ESA offers surface mount packaging in an SO format. Cross-reference availability as production status may vary between manufacturers.