What the 600 ns propagation delay means for your signal chain
The LMV393MMX/NOPB is a dual general-purpose comparator from Texas Instruments, packing two independent comparators in a single 8-VSSOP package. Its 600 ns max propagation delay sets the upper bound on how fast it can toggle — at 5 V supply, the output transitions in under a microsecond, which is fast enough for threshold detection in sensor interfaces, overcurrent trip circuits, and zero-crossing detectors running below about 800 kHz. The 300 µA max quiescent current means the pair draws under a third of a milliamp from the rail, making it a fit for battery-powered or loop-powered designs where every microamp is budgeted.
Supply range and output flexibility
The output stage is CMOS, open-collector, or TTL-compatible — the open-collector option lets you wire-OR multiple outputs or pull up to a different voltage rail, which is handy when the comparator output feeds a logic input at a different supply level.
Input offset and bias — the real-world accuracy limits
For a low-side current-sense resistor of 100 mΩ, a 7 mV offset corresponds to a 70 mA error in the trip point — that is the dominant accuracy term, not the resistor tolerance. The 0.25 µA bias current matters when the source impedance is high; with a 10 kΩ source, the bias drops 2.5 mV across the resistor, adding to the offset. These are the numbers to budget in the threshold calculation.
Temperature range and package
The NOPB suffix confirms RoHS3 compliance with no lead in the plating or solder balls.