Dual comparator for industrial threshold sensing
The Texas Instruments LM2903N/NOPB is a general-purpose dual comparator in an 8-DIP package, designed for threshold detection and signal conditioning across a wide supply range of 2 V to 36 V (single supply) or ±1 V to ±18 V (dual supply). With two independent open-collector outputs that interface with CMOS, TTL, or ECL logic, it suits mixed-voltage systems where the comparator output must pull to a different rail than the input stage.
700 ns propagation delay — timing budget for fast loops
The 700 ns maximum propagation delay sets the response floor for overcurrent detection, zero-crossing, or window comparators — fast enough for most motor-drive and power-supply feedback loops, but not for GHz-class signal recovery.
16 mA output drive and 2.5 mA quiescent current
Maximum quiescent current is 2.5 mA for both comparators, keeping the thermal load low in the 8-PDIP package even at elevated ambient temperatures.
This makes it a safe choice for new BOM entries and long-run production lines where supply continuity is a requirement.