MAX987ESA+T

Comparators Overview

The MAX987ESA+T is a single-channel micropower comparator in an 8-pin SO package. It operates on a single supply from +2.5V to +5.5V or dual supplies of ±1.25V to ±2.75V. The device features a push-pull output stage capable of sourcing and sinking up to 8mA, with rail-to-rail input and output voltage ranges extending 250mV beyond the rails. Key electrical parameters include a typical propagation delay of 120ns at 100mV overdrive, quiescent supply current of 48µA per comparator, and input offset voltage typically 0.5mV. Internal hysteresis is set at ±2.5mV.

Comparators Feature Summary

• Rail-to-rail inputs and outputs extend 250mV beyond the supply rails without phase reversal for overdriven inputs.
• Push-pull output stage sinks and sources current while minimizing supply-current surges during switching.
• Internal hysteresis ensures clean output switching even with slow-moving input signals.

Comparators Applications

• Zero-Crossing Detectors
• Logic-Level Translators
• Threshold Detectors/Discriminators

Comparators Procurement Notes

Verify the specific suffix '+T' indicates tape-and-reel packaging when ordering. Confirm the 'ES' designation corresponds to the 8-pin SO package variant. Ensure compatibility with the required operating temperature range of -40°C to +85°C. Check for RoHS compliance status as indicated by the '+' suffix in official documentation.

Comparators Selection Notes

Select this component for low-voltage applications requiring rail-to-rail signal handling. The push-pull output is suitable for driving loads directly without external pull-up resistors. Consider the 120ns propagation delay for high-speed threshold detection needs. Evaluate the 48µA quiescent current for battery-powered system efficiency requirements.

Comparators Part Context

This part belongs to the MAX987/MAX988/MAX991/MAX992/MAX995/MAX996 family of high-speed, micropower comparators. While other variants offer open-drain outputs or multiple channels, the MAX987 specifically provides a single channel with a push-pull configuration. It shares the same core architecture regarding input common-mode range and power consumption characteristics.

Comparators Replacement Considerations

Direct substitutes within the same family include the MAX988 (open-drain output) and MAX991 (dual channel). Verify that the replacement maintains the push-pull output requirement if present in the original design.