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MCP6542-I/P

MCHPMCP6542-I/P

Microchip Technology
Comparator Standard (General Purpose) CMOS, Push-Pull, Rail-to-Rail, TTL 8-PDIP
Active1,100 in stock

Overview

The MCP6542-I/P is a dual, ultra-low power comparator designed for battery-powered and handheld applications. It operates from a supply voltage as low as 1.6V and features a push-pull output stage that eliminates the need for an external pull-up resistor. With a typical quiescent current of only 0.6 microamps per comparator, it is optimized for systems where power consumption is a critical design constraint.

Why Choose This Part

The primary advantage is the exceptionally low quiescent current of 0.6uA, which significantly extends battery life in always-on monitoring circuits. It includes internal 6.5mV hysteresis to ensure clean output switching in the presence of noise and features a rail-to-rail input/output architecture for maximum signal dynamic range.

Applications

Battery-Powered Monitoring
Ideal for low-battery detection circuits in portable electronics due to its sub-microamp current draw.
RC Timer Circuits
Utilized in long-duration timing applications where minimal leakage and low power are required.
Windowed Comparators
The dual-element 8-PDIP package allows for easy implementation of over/under voltage monitoring on breadboards or through-hole PCBs.
Handheld Instrumentation
Used in metering systems and mobile devices to provide rail-to-rail signal comparison with integrated 6.5mV hysteresis.

Key Specifications

Type Standard (General Purpose)
Hysteresis 6.5mV
Output Type CMOS, Push-Pull, Rail-to-Rail, TTL
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm)
CMRR, PSRR (Typ) 70dB CMRR, 80dB PSRR
Number of Elements 2
Operating Temperature -40degC ~ 85degC
Propagation Delay (Max) 8us
Supplier Device Package 8-PDIP
Current - Quiescent (Max) 1uA
Current - Input Bias (Max) 1pA @ 5.5V
Voltage - Input Offset (Max) 7mV @ 5.5V
Voltage - Supply, Single/Dual (+/-) 1.6V ~ 5.5V

Getting Started

For rapid prototyping, this 8-PDIP package can be plugged directly into a standard breadboard or IC socket. Ensure a 0.1uF ceramic bypass capacitor is placed close to the VDD pin to maintain stability during output transitions, especially since the push-pull stage can generate small current spikes.

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