MCP6544-E/P

Comparators Overview

The MCP6544-E/P is a quad analog comparator from Microchip Technology, housed in a 14-pin PDIP package. It operates on a single supply voltage ranging from 1.6V to 5.5V with a typical quiescent current of 600 nA per comparator. The device features rail-to-rail inputs and CMOS/TTL-compatible push-pull outputs capable of driving heavy DC or capacitive loads. Key electrical specifications include a propagation delay of 4 µs (typical), an input offset voltage of ±7 mV, and an internal hysteresis of 3.3 mV (typical). It supports industrial temperature ranges from -40°C to +85°C.

Comparators Feature Summary

• Rail-to-rail input operation extending beyond the power supply rails.
• CMOS/TTL-compatible push-pull digital outputs for direct logic interfacing.
• Integrated internal hysteresis to prevent output chattering caused by noise.

Comparators Applications

• Laptop Computers
• Mobile Phones
• Metering Systems
• Hand-held Electronics
• Alarm and Monitoring Circuits

Comparators Procurement Notes

Verify that the ordering suffix matches the required package type and temperature range. Confirm the specific revision level against the manufacturer datasheet DS20001696K. Ensure compatibility with your PCB footprint for the 14-pin PDIP configuration. Cross-reference part numbers with official Microchip documentation to avoid counterfeit components.

Comparators Selection Notes

Select this component when multiple independent comparison channels are required within a low-power system. It is suitable for designs needing rail-to-rail input capability without external biasing. Consider the PDIP package only if through-hole mounting is mandatory for mechanical stability or prototyping purposes.

Comparators Part Context

This device belongs to the MCP654x family of sub-microamp comparators. It shares core electrical characteristics with other variants like the MCP6541, MCP6542, and MCP6543, differing primarily in channel count and pinout configuration. The 'E' designation indicates extended temperature performance capabilities relative to standard industrial grades.

Comparators Replacement Considerations

Direct functional substitutes within the same family include MCP6544-I/P and MCP6544-E/SL. Verify pin compatibility and thermal resistance differences when switching between PDIP and SOIC packages.

Comparators FAQ

Does the MCP6544-E/P support phase reversal?

No, the device uses CMOS transistors at the input designed to prevent phase inversion even when input pins exceed the supply voltages.

What is the maximum input bias current?

The input bias current is typically 1 pA at 25°C, increasing to higher values at elevated temperatures such as +85°C or +125°C.