Dual differential comparator in 8-SOIC
The Texas Instruments LM2903AVQDR is a dual differential comparator in an 8-SOIC surface-mount package. It compares two analog input voltages and outputs a digital logic level based on the difference, making it a building block for threshold detection, zero-crossing detectors, and window comparators in industrial and automotive signal chains.
Supply range and input precision over temperature
Quiescent current is 2.5 mA max per comparator, which matters for power budgeting in multi-channel boards or battery-powered systems where the comparator is always active.
Output flexibility and drive capability
Each output can sink or source 20 mA typical, enough to drive a small relay coil, an LED indicator, or the input of a logic gate directly.