поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

Preview PDF HTML

OPA211AI датащи(PDF) 16 Page - Texas Instruments

номер детали OPA211AI
подробное описание детали  1.1nV/?숰z Noise, Low Power, Precision Operational Amplifier in Small DFN-8 Package
PDF  37 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI1 - Texas Instruments

OPA211AI датащи(HTML) 16 Page - Texas Instruments

Back Button OPA211AI Datasheet HTML 12Page - Texas Instruments OPA211AI Datasheet HTML 13Page - Texas Instruments OPA211AI Datasheet HTML 14Page - Texas Instruments OPA211AI Datasheet HTML 15Page - Texas Instruments OPA211AI Datasheet HTML 16Page - Texas Instruments OPA211AI Datasheet HTML 17Page - Texas Instruments OPA211AI Datasheet HTML 18Page - Texas Instruments OPA211AI Datasheet HTML 19Page - Texas Instruments OPA211AI Datasheet HTML 20Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 16 / 37 page
background image
R
1
R
2
E
O
R
1
R
2
E
O
R
S
V
S
R
S
V
S
NoiseinNoninvertingGainConfiguration
NoiseinInvertingGainConfiguration
Noiseattheoutput:
E
=
O
2
Wheree = Ö
S
S
4kTR ´
=thermalnoiseofR
S
2
1+
R
2
R
1
e
+e
n
1
2
n
2
S
S
+e
+(i R ) +e
+(i
n
R )
2
2
2
2
2
2
1+
R
2
R
1
R
2
R
1
e = Ö
1
1
4kTR ´
=thermalnoiseofR
1
2
1+
R
2
R
1
e = Ö
2
2
2
4kTR =thermalnoiseofR
Noiseattheoutput:
E
=
O
2
Wheree = 4kTR
Ö
S
S
´
=thermalnoiseofR
S
2
1+
R
2
R +R
1
S
e
+e
n
1
2
n
2
S
+e
+(i R ) +e
2
2
2
2
2
R
2
R +R
1
S
R
2
R +R
1
S
e = 4kTR
Ö
1
1
´
=thermalnoiseofR
1
e = 4kTR
Ö
2
2
2
=thermalnoiseofR
FortheOPA211seriesopampsat1kHz,e =1.1nV/ Hzandi =1.7pA/ Hz.
Ö
Ö
n
n
OPA211
OPA2211
SBOS377G – OCTOBER 2006 – REVISED MAY 2009...................................................................................................................................................... www.ti.com
Figure 46 depicts total noise for varying source
Therefore, the lowest noise op amp for a given
impedances
with
the
op
amp
in
a
unity-gain
application depends on the source impedance. For
configuration (no feedback resistor network, and
low source impedance, current noise is negligible and
therefore no additional noise contributions). The
voltage noise generally dominates. For high source
operational amplifier itself contributes both a voltage
impedance, current noise may dominate.
noise component and a current noise component.
Figure 47 illustrates both inverting and noninverting
The voltage noise is commonly modeled as a
op amp circuit configurations with gain. In circuit
time-varying component of the offset voltage. The
configurations
with
gain,
the
feedback
network
current
noise
is
modeled
as
the
time-varying
resistors also contribute noise. The current noise of
component of the input bias current and reacts with
the op amp reacts with the feedback resistors to
the source resistance to create a voltage component
create additional noise components. The feedback
of noise.
resistor values can generally be chosen to make
these noise sources negligible. The equations for
total noise are shown for both configurations.
Figure 47. Noise Calculation in Gain Configurations
16
Submit Documentation Feedback
Copyright © 2006–2009, Texas Instruments Incorporated
Product Folder Link(s): OPA211 OPA2211



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37


датащи скачать

Go To PDF Page


ссылки URL



Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   Ссылка на техническое описание    |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com