Dual comparator in a 0.4 mm pitch BGA
It integrates two independent comparator channels with an open-collector output stage that interfaces directly to CMOS, TTL, or ECL logic families. The supply range spans 2V to 36V single supply or ±1V to ±18V dual supplies, making it a drop-in for legacy 5V, 12V, or 24V industrial rails without a secondary regulator.
The 700 ns maximum propagation delay sets the comparator's response in feedback and threshold-detection circuits. For a 100 kHz PWM cycle (10 µs period), the 700 ns delay adds 7 % phase lag — acceptable for most motor-drive and power-supply control loops, but too slow for high-frequency resonant converters or fast overcurrent detection below 1 µs. The 0.25 µA maximum input bias current at 5 V keeps the error from source impedance below 1 mV for a 4 kΩ Thévenin resistance.
The 8-DSBGA package (0.4 mm ball pitch) demands a controlled solder-paste stencil and X-ray inspection — not a hand-assembly or rework-friendly footprint. The quiescent current per channel is 2.5 mA maximum, which keeps the thermal budget low in the small package — the DSBGA's junction-to-board thermal resistance is roughly 100 °C/W, so at 5 V supply the 12.5 mW dissipation per comparator stays well within the derating curve.
The base product number LM2903 covers multiple package variants (SOIC, MSOP, DSBGA) and temperature grades. The ITL suffix specifically identifies the 8-DSBGA package with the industrial temperature range. The NOPB suffix confirms lead-free / RoHS-compliant construction.