MAX944CPD

Comparators Overview

The MAX944CPD is a quad high-speed analog comparator from the MAX941/MAX942/MAX944 family, optimized for single-supply operation at 3V or 5V. It features rail-to-rail input voltage range and outputs that pull to within 0.4V of either supply rail without external pullup circuitry. The device operates with a supply voltage range of 2.7V to 5.5V and draws 350µA per comparator at 3V. Propagation delay is typically 80ns with 5mV overdrive. Internal hysteresis ensures clean switching. It is housed in a 14-pin PDIP package and supports an operating temperature range of 0°C to +70°C.

Comparators Feature Summary

• Quad channel configuration with rail-to-rail inputs and CMOS/TTL-compatible outputs
• Internal fixed hysteresis eliminates external resistor requirements for noise immunity
• Outputs drive directly to logic rails without requiring external pullup components
• Low power consumption suitable for portable and battery-powered applications

Comparators Applications

• Threshold detectors and discriminators
• Line receivers
• Zero-crossing detectors
• Sampling circuits

Comparators Procurement Notes

Verify the specific suffix 'CPD' corresponds to the commercial temperature grade (0°C to +70°C) and 14-pin DIP package. Confirm RoHS compliance status via manufacturer documentation as standard markings may vary. Ensure pinout compatibility with existing PCB layouts before integration.

Comparators Selection Notes

Select this component when four independent comparators are required in a single package. It is suitable for systems powered by 3V or 5V supplies where low power and fast response are priorities. Consider the MAX944ESD variant if extended industrial temperature ranges (-40°C to +85°C) are necessary.

Comparators Part Context

This part belongs to the MAX94x series of high-speed, low-power comparators. The MAX944 specifically provides four channels, whereas the MAX941 offers one and the MAX942 offers two. All variants share similar electrical characteristics including speed and power profiles but differ in channel count and available packages.

Comparators Replacement Considerations

MAX944ESD is a direct functional replacement offering an extended temperature range (-40°C to +85°C). Both parts share identical pinouts and electrical specifications.