MAX986ESA+

Comparators Overview

The MAX986ESA+ is a single-channel micropower comparator manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 2.5V to 5.5V, or dual supplies of ±1.25V to ±2.75V. The device consumes 11µA to 24µA of quiescent supply current and features an open-drain output stage capable of pulling beyond VCC up to 6V above VEE. Electrical specifications include a typical input offset voltage of 0.5mV, input bias current of 1.0pA, propagation delay of 300ns to 450ns, and common-mode rejection ratio of 80dB. It is housed in an 8-pin SO package and functions within a temperature range of -40°C to +85°C.

Comparators Feature Summary

• Open-drain output stage allows voltage levels to extend beyond the positive supply rail for level translation applications
• Rail-to-rail inputs enable operation with common-mode voltages extending 250mV beyond either supply rail without phase reversal
• Internal hysteresis ensures clean output switching even when processing slow-moving input signals
• Unique output stage design minimizes supply-current surges during switching to virtually eliminate power supply glitches

Comparators Applications

• Logic-level translators between different voltage domains
• Zero-crossing detectors for signal monitoring
• Threshold detectors and discriminators
• Window comparators for voltage range verification

Comparators Procurement Notes

Verify component authenticity through authorized distributors as the part may be subject to limited availability or end-of-life status. Confirm RoHS compliance and lead-free packaging requirements against specific project standards. Ensure the open-drain configuration matches system pull-up resistor designs. Validate that the 8-pin SO package footprint aligns with existing PCB layouts before finalizing procurement orders.

Comparators Selection Notes

Select this component when low quiescent current consumption is critical for battery-powered systems requiring precise threshold detection. The open-drain output is specifically required when interfacing with logic families operating at voltages higher than the comparator's supply rail. Verify that the 300ns to 450ns propagation delay meets the timing constraints of the target application circuit.

Comparators Part Context

This device belongs to the MAX985/MAX986/MAX989/MAX990/MAX993/MAX994 family of micropower, low-voltage comparators. While other members of the series offer push-pull outputs or multiple channels, the MAX986 variant is distinguished by its single-channel architecture and open-drain output capability. It shares the same core electrical characteristics regarding input offset, bias current, and supply voltage ranges as its counterparts.

Comparators Replacement Considerations

Direct functional substitutes within the same family include the MAX990ESA+, which provides identical open-drain output characteristics but in a dual-channel configuration.