Scribd
Upload
13 views4 pages

CMRR

The document discusses common mode rejection ratio (CMRR) in differential amplifiers, emphasizing its importance in minimizing noise in signal processing. It highlights the relationship between input signals and the common mode gain, as well as the effects of noise on output voltage. Additionally, it outlines the conditions under which CMRR is optimized for both inventive and non-inventive terminals.

Uploaded by

kingmahim725
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
13 views4 pages

CMRR

The document discusses common mode rejection ratio (CMRR) in differential amplifiers, emphasizing its importance in minimizing noise in signal processing. It highlights the relationship between input signals and the common mode gain, as well as the effects of noise on output voltage. Additionally, it outlines the conditions under which CMRR is optimized for both inventive and non-inventive terminals.

Uploaded by

kingmahim725
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 4

Ode fejekion Ratio

CommN
ampliben
digtenenth
fOamden Aens
deines too t h

V
AoL

Open loop.1ain o r
- Difeenhed aoin
Seeent o wlge
Comosh-0
mde
V2
Volhe
ec

V
Nem
Same inpon
1-ve
both tetogni nols. (nvestir and non-inVenino
terominels)hs knous0 oS eommon m6de.
Vem= Common m6de Signo
while givina same. inp VouFo
Bu due to
ose-noise) , small amount o
owspu volaae. owobld be
eoouceA,Voem
:

oem O
Voem- vote d o e to commsn m6 de siym
Con m0n Mae ainHem Noem Z1
Vem

Ba-ton
CThene w| be
difene inp
ols, -oVo

la.oe an N
Vo Vo
V

Difeer a atn
e MRR =
Ac do, emRP - 2o\oy Je
Aem

Comon
COmsn n6de Rejehon fodho s te oaho 0 enetiod
diJenertid
an nd eoMmon mode an,

CMPR àelevomines. a eineuits abilto oejeds n


Common Sqna| and to pos
Cand
cind
aSinal i inventive
non
'invenintenminels volteqag ome nst eau. U
O o%O He siqvoals on noise sqnals ane most Common

SoVpces, Pnesent bofe mu-ernminals.


an ek is oonina in an dlomozrecie fieldFkero-
ma nehc nteference is the ommon o He bóth opudfenminals

V+

V Ax Vid +AenX Vem


Diifepentia ommon
mde
Volkae vatkage
L
Hous w Shouldbe
op-omp is oble 4o spPoe minimum
eomon b h apadern
mode inpu-siaol is dahred by
CMRR
CMAR 40di} ndices hous veh me Common mode

y will peesed o megvmc.

CmRR noise

TheeP-anp
Me il have he inhnile CMRP
ide op. amp and uh
inite di5fenentia aatn and 2eno smmon mo de qain.

You might also like