MCP6542-E/MS

Comparators Overview

The MCP6542-E/MS is a dual analog comparator from Microchip Technology, housed in an 8-lead MSOP package. It operates on a single supply voltage ranging from 1.6V to 5.5V and draws a typical quiescent current of 600 nA per comparator. The device features rail-to-rail input capability extending from VSS - 0.3V to VDD + 0.3V and provides CMOS/TTL-compatible push-pull outputs. Key electrical specifications include a typical propagation delay of 4 µs at 100 mV overdrive, an input offset voltage maximum of 7 mV, and internal hysteresis of 3.3 mV. It supports industrial temperature operation from -40°C to +85°C.

Comparators Feature Summary

• Rail-to-rail input stage allows signal voltages to exceed the power supply rails without phase reversal.
• Push-pull digital outputs provide full swing and are compatible with standard CMOS and TTL logic families.
• Integrated internal hysteresis prevents output chattering caused by input noise voltage.
• Ultra-low quiescent current consumption enables extended battery life in portable applications.

Comparators Applications

• Laptop Computers
• Mobile Phones
• Metering Systems
• Hand-held Electronics

Comparators Procurement Notes

Verify that the ordering suffix matches the required temperature grade and packaging format. Confirm the specific pinout configuration for the MSOP package aligns with the design schematic. Ensure the component meets RoHS compliance requirements for the target market. Cross-reference the manufacturer part number with authorized distributors to guarantee authenticity.

Comparators Selection Notes

Select this component when a dual-channel comparison function is required within a compact surface-mount footprint. It is suitable for designs needing low power consumption alongside robust noise immunity provided by internal hysteresis. Consider the rail-to-rail input range if signals approach or slightly exceed the supply voltage limits.

Comparators Part Context

This device belongs to the MCP6541/2/3/4 family of sub-microamp comparators. While the MCP6541 offers a single channel and the MCP6544 provides four channels, the MCP6542 specifically integrates two independent comparators. This configuration balances channel count and package size for general-purpose signal processing tasks.

Comparators Replacement Considerations

Direct functional substitutes within the same family include the MCP6541 (single channel) and MCP6544 (quad channel), provided pin compatibility is addressed. For open-drain output requirements, the MCP6546/7/8/9 series may be considered with appropriate pull-up resistor modifications.