AD 549 JHZ

AD549 yog monolithic electrometer ua haujlwm amplifier nrog cov tswv yim tsis tshua muaj siab tam sim no. Input offset voltage thiab input offset voltage drift yog laser trimmed rau precision kev ua tau zoo. Lub ultralow input tam sim no ntawm ib feem yog tiav nrog Topgate JFET thev naus laus zis, kev txhim kho cov txheej txheem tshwj xeeb rau Analog Devices, Inc. Cov thev naus laus zis no tso cai rau kev tsim cov tswv yim tsawg kawg nkaus tam sim no JFETs tau sib xws nrog cov txheej txheem kev sib txuas ntawm cov txheej txheem bipolar. Lub 1015 Ω hom-hom impedance, uas tshwm sim los ntawm bootstrapped input theem, xyuas kom meej tias cov input tam sim no tseem ceeb ntawm kev ywj pheej ntawm commonmode voltage.