Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

AD8672ARZ Folha de dados(PDF) 11 Page - Analog Devices

Nome de Peças AD8672ARZ
Descrição Electrónicos  Precision, Very Low Noise, Low Input Bias Current Operational Amplifiers
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

AD8672ARZ Folha de dados(HTML) 11 Page - Analog Devices

Back Button AD8672ARZ Datasheet HTML 7Page - Analog Devices AD8672ARZ Datasheet HTML 8Page - Analog Devices AD8672ARZ Datasheet HTML 9Page - Analog Devices AD8672ARZ Datasheet HTML 10Page - Analog Devices AD8672ARZ Datasheet HTML 11Page - Analog Devices AD8672ARZ Datasheet HTML 12Page - Analog Devices AD8672ARZ Datasheet HTML 13Page - Analog Devices AD8672ARZ Datasheet HTML 14Page - Analog Devices AD8672ARZ Datasheet HTML 15Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 16 page
background image
AD8671/AD8672/AD8674
Rev. C | Page 11 of 16
APPLICATIONS
UNITY-GAIN FOLLOWER APPLICATIONS
When large transient pulses (>1 V) are applied at the positive
terminal of amplifiers (such as the OP27, LT1007, OPA227, and
AD8671) with back-to-back diodes at the input stage, the use of
a resistor in the feedback loop is recommended to avoid having
the amplifier load the signal generator. The feedback resistor,
RF, should be at least 500 Ω. However, if large values must be
used for RF, a small capacitor, CF, should be inserted in parallel
with RF to compensate for the pole introduced by the input
capacitance and RF.
Figure 32 shows the uncompensated output response with a
10 kΩ resistor in the feedback and the compensated response
with CF = 15 pF.
REF1 +OVER
23.23%
CH2 +OVER
7.885%
OUTPUT UNCOMPENSATED
OUTPUT
COMPENSATED
TIME (100ns/DIV)
Figure 32. Transient Output Response
OUTPUT PHASE REVERSAL
Phase reversal is a change of polarity in the amplifier transfer
function that occurs when the input voltage exceeds the supply
voltage. The AD8671/AD8672/AD8674 do not exhibit phase
reversal even when the input voltage is 1 V beyond the supplies.
VSY = ±15V
VIN
VOUT
TIME (10
μs/DIV)
Figure 33. Output Phase Reversal
TOTAL NOISE VS. SOURCE RESISTANCE
The low input voltage noise of the AD8671/AD8672/AD8674
makes them a great choice for applications with low source
resistance. However, because they have low input current noise,
they can also be used in circuits with substantial source
resistance.
Figure 34 shows the voltage noise, current noise, thermal noise,
and total rms noise of the AD8671 as a function of the source
resistance.
For RS < 475 Ω, the input voltage noise, en, dominates.
For 475 Ω < RS < 412 kΩ, thermal noise dominates.
For RS > 412 kΩ, the input current noise dominates.
10
1k
1
10
100
1000
100
10k
100k
1M
en_t
C
A
B
en
in
(4kRST)1/2
SOURCE RESISTANCE (
Ω)
Figure 34. Noise vs. Source Resistance


Nº de peça semelhante - AD8672ARZ

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Analog Devices
AD8672AR AD-AD8672AR Datasheet
92Kb / 4P
   Precision Very Low Noise Low Input Bias Current Operational Amplifiers
Rev 0.2 2/21/02
AD8672ARM AD-AD8672ARM Datasheet
92Kb / 4P
   Precision Very Low Noise Low Input Bias Current Operational Amplifiers
Rev 0.2 2/21/02
AD8672ARMZ AD-AD8672ARMZ Datasheet
439Kb / 20P
   Precision, Very Low Noise, Low Input Bias Current Operational Amplifiers
Rev. F
More results

Descrição semelhante - AD8672ARZ

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Analog Devices
AD8671 AD-AD8671 Datasheet
92Kb / 4P
   Precision Very Low Noise Low Input Bias Current Operational Amplifiers
Rev 0.2 2/21/02
AD8672ARMZ AD-AD8672ARMZ Datasheet
439Kb / 20P
   Precision, Very Low Noise, Low Input Bias Current Operational Amplifiers
Rev. F
OP1177 AD-OP1177_15 Datasheet
479Kb / 24P
   Precision Low Noise, Low Input Bias Current Operational Amplifiers
OP2177 AD-OP2177_15 Datasheet
479Kb / 24P
   Precision Low Noise, Low Input Bias Current Operational Amplifiers
OP1177 AD-OP1177_07 Datasheet
493Kb / 24P
   Precision Low Noise, Low Input Bias Current Operational Amplifiers
REV. E
OP1177 AD-OP1177 Datasheet
245Kb / 20P
   Precision Low Noise, Low Input Bias Current Operational Amplifiers
REV. B
OP4177 AD-OP4177_15 Datasheet
479Kb / 24P
   Precision Low Noise, Low Input Bias Current Operational Amplifiers
OP1177 AD-OP1177_09 Datasheet
479Kb / 24P
   Precision Low Noise, Low Input Bias Current Operational Amplifiers
Rev. G
AD8510 AD-AD8510_07 Datasheet
465Kb / 20P
   Precision, Very Low Noise, Low Input Bias Current, Wide Bandwidth JFET Operational Amplifiers
Rev. H
AD8510 AD-AD8510 Datasheet
497Kb / 20P
   Precision, Very Low Noise, Low Input Bias Current, Wide Bandwidth JFET Operational Amplifiers
Rev. E
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   Lista de Fabricantes
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