PIN DIODE SWITCH - AN OVERVIEW

It's LM108 and LM112 (internally compensated) and there is de facto no trick there. It's got 1nA enter bias which can be pretty stable with temperature as in many bipolar opamps mainly because β actually improves with temperature. Later on iterations like LT1008/LT1012 or OP97 pushed it down toModern radio observatories hire arrays of LNAs to buil