What this op-amp is for
Rail-to-rail output and input offset
Rail-to-rail output means this op-amp can drive its output within millivolts of either supply rail, which matters when you are digitizing a signal near ground or the positive rail without a negative supply. The input offset voltage is rated at 1 mV — typical for a general-purpose CMOS amp, but worth checking if your application needs sub-millivolt precision. Input bias current is 1 pA, so high-impedance sources like photodiodes or pH probes won't see significant loading.
