LM339DR

LM339DR is the tape-and-reel SOIC-14 ordering code for the Texas Instruments LM339 quad comparator, listed as ACTIVE. Verified figures on the TI rows: four independent channels, a supply of 2 V to 30 V, quiescent current of 0.2 mA typical per channel, input offset voltage of 5 mV maximum and input bias current of 50 nA maximum, in the commercial 0 °C to +70 °C grade. The selection point is four open-collector comparators in one package for threshold, window and level-detection duties that must keep working from a single logic rail while sensing down to ground. Selection advice: this is the TI device with TI figures — onsemi and STMicroelectronics ship same-designation quads with their own tables, so qualify the maker on the BOM line; and as a comparator it is not an op-amp substitute for linear duty. Parameters verified against the TI LM339 datasheet and product page.