▁in ▁the ▁Fin ister re ▁Range ▁campaign ▁and ▁other ▁combat ▁operations ▁in ▁New ▁Guinea ▁until ▁the ▁end ▁of ▁the ▁war . ▁ ▁References ▁ ▁External ▁links ▁ ▁Notes ▁▁ ▁Category : 1 8 9 5 ▁birth s ▁Category : 1 9 6 9 ▁death s ▁Category : Mil it ary ▁personnel ▁from ▁T ott ori ▁Pref ect ure ▁Category : J apan ese ▁military ▁personnel ▁of ▁World ▁War ▁II ▁Category : J apan ese ▁gener als <0x0A> </s> ▁An ▁instrument ation ▁( or ▁instrument ational ) ▁ampl ifier ▁( s ometimes ▁sh orth and ed ▁as ▁In - A mp ▁or ▁In A mp ) ▁is ▁a ▁type ▁of ▁differential ▁ampl ifier ▁that ▁has ▁been ▁out f itted ▁with ▁input ▁buffer ▁ampl ifiers , ▁which ▁eliminate ▁the ▁need ▁for ▁input ▁imped ance ▁matching ▁and ▁thus ▁make ▁the ▁ampl ifier ▁particularly ▁suitable ▁for ▁use ▁in ▁measurement ▁and ▁test ▁equipment . ▁Add itional ▁characteristics ▁include ▁very ▁low ▁DC ▁offset , ▁low ▁dr ift , ▁low ▁noise , ▁very ▁high ▁open - loop ▁gain , ▁very ▁high ▁common - mode ▁re jection ▁ratio , ▁and ▁very ▁high ▁input ▁imped ances . ▁Inst rument ation ▁ampl ifiers ▁are ▁used ▁where ▁great ▁accuracy ▁and ▁stability ▁of ▁the ▁circuit ▁both ▁short ▁and ▁long - term ▁are ▁required . ▁ ▁Although ▁the ▁instrument ation ▁ampl ifier ▁is ▁usually ▁shown ▁sch emat ically ▁identical ▁to ▁a ▁standard ▁oper ational ▁ampl ifier ▁( op - amp ), ▁the ▁electronic ▁instrument ation ▁amp ▁is ▁almost ▁always ▁internally ▁composed ▁of ▁ 3 ▁op -