MAX9142ESA-T

Overview

The MAX9142ESA-T is a dual high-speed comparator from the MAX9140 family, optimized for 3V and 5V single-supply systems. It features rail-to-rail inputs and CMOS/TTL-compatible outputs that pull to within 300mV of either supply rail without external pullup circuitry. The device offers a propagation delay of 40ns with 150μA supply current per comparator. It includes internal hysteresis for clean switching and tolerates continuous short-circuit faults to either rail.

Feature Summary

• Rail-to-rail input voltage range extending beyond power-supply rails
• CMOS and TTL logic interface compatibility
• Internal hysteresis for noise immunity
• Continuous short-circuit fault tolerance

Applications

• Line Receivers
• Threshold Detectors/Discriminators
• Zero-Crossing Detectors
• Sampling Circuits

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm the 'E' grade designation aligns with the required -40°C to +85°C operating temperature range. Ensure the SOIC-8 package code matches the target PCB land pattern specifications before finalizing procurement orders.

Selection Notes

Select this component for applications requiring low-power operation in portable equipment. It serves as a direct upgrade to industry-standard comparators like the MAX942. Consider the MAX9141 if latch enable or shutdown functionality is required instead of the standard dual configuration found in the MAX9142.

Part Context

This part belongs to the MAX914x series of single-supply comparators manufactured by Analog Devices/Maxim Integrated. The series includes single (MAX9140), dual (MAX9142), and quad (MAX9144) variants. The MAX9142 specifically provides two independent channels in an 8-pin package, balancing speed and power consumption for general-purpose comparison tasks.

Replacement Considerations

The datasheet identifies the MAX942 as an industry-standard comparator upgraded by this device.