TOP LOW-NOISE AMPLIFIER SECRETS

It truly is LM108 and LM112 (internally compensated) and there is de facto no trick there. It has 1nA enter bias that's rather stable with temperature as in the majority of bipolar opamps for the reason that β actually improves with temperature. Later iterations like LT1008/LT1012 or OP97 pushed it all the way down to）在通信系统中扮演着