28 ns propagation delay — what it buys the signal chain
The MAX976ESA+ is a dual general-purpose comparator from Maxim Integrated, built for applications where the decision speed matters more than a jellybean part like the LM393 can deliver. Its 28 ns max propagation delay means it can handle high-frequency threshold detection, zero-crossing, and fast overcurrent trip circuits without introducing timing uncertainty into the control loop. The dual-channel layout in an 8-SOIC package keeps the board footprint tight — two comparators in the space one used to occupy.
Supply and output flexibility
The output stage swings rail-to-rail and is compatible with CMOS and TTL logic families — no extra level translator between the comparator and the digital input. Quiescent current maxes at 650 µA per package, not per channel, which keeps the power budget lean for multi-channel sensing.
Precision and noise rejection for industrial environments
The 95 dB CMRR and 100 dB PSRR mean the threshold stays stable when the common-mode voltage shifts or the supply rail ripples — important on a factory floor where motors and switching supplies inject noise. The 4 mV of built-in hysteresis prevents output chatter on slowly moving inputs, saving an external feedback resistor.
The 8-SOIC package is a rework-friendly footprint — the 0.154-inch body width and 1.27 mm pitch are easy to hand-solder or hot-air reflow without lifting pads.
The ROHS3 status means it meets the latest European hazardous-substance restrictions without an exemption.