Block diagram of op amp

2 Modes




Vouk,cm




-VEC


5ame
Vin. Cn’lnouuk commnn mode Uoltage
Volt aqe)
CmOukwk Common mode yolkage
ba me inouk olkoe i5 qiuen to ne 2 ints

petecely
matched Rc=Rce
Comman mo de
Vin, con
ldeal wolue

, Phackically 4e value of cernQsneeks Shoa
not Perfeuty enokched, So due eo Ehas

Quomis less thon

or checkina Ahe Qerformance of IC,used
Cor makching 4he comesnents or whelher
ngse con be, eliinaed.

2O:esenkial mode pevation
his mode 55 usually used Foy mpicaisa
Qurpose.b
(he 5ignd Sholo be anped i5 055ign
in blu teiminals,
Vid I0Qwk dieential
osVokage
Uokad ’utut dipCerenkia

Ad dtfereakia qarn