поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

LF356 датащи(PDF) 11 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
номер детали LF356
подробное описание детали  JFET Input Operational Amplifiers
Download  23 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  NSC [National Semiconductor (TI)]
домашняя страница  http://www.national.com
Logo NSC - National Semiconductor (TI)

LF356 датащи(HTML) 11 Page - National Semiconductor (TI)

Back Button LF356 Datasheet HTML 7Page - National Semiconductor (TI) LF356 Datasheet HTML 8Page - National Semiconductor (TI) LF356 Datasheet HTML 9Page - National Semiconductor (TI) LF356 Datasheet HTML 10Page - National Semiconductor (TI) LF356 Datasheet HTML 11Page - National Semiconductor (TI) LF356 Datasheet HTML 12Page - National Semiconductor (TI) LF356 Datasheet HTML 13Page - National Semiconductor (TI) LF356 Datasheet HTML 14Page - National Semiconductor (TI) LF356 Datasheet HTML 15Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 23 page
background image
Application Hints (Continued)
reversal of phase to the output. Exceeding the negative
common-mode limit on both inputs will force the amplifier
output to a high state. In neither case does a latch occur
since raising the input back within the common-mode range
again puts the input stage and thus the amplifier in a normal
operating mode.
Exceeding the positive common-mode limit on a single input
will not change the phase of the output however, if both
inputs exceed the limit, the output of the amplifier will be
forced to a high state.
These amplifiers will operate with the common-mode input
voltage
equal
to
the
positive
supply.
In
fact,
the
common-mode voltage can exceed the positive supply by
approximately 100 mV independent of supply voltage and
over the full operating temperature range. The positive sup-
ply can therefore be used as a reference on an input as, for
example, in a supply current monitor and/or limiter.
Precautions should be taken to ensure that the power supply
for the integrated circuit never becomes reversed in polarity
or that the unit is not inadvertently installed backwards in a
socket as an unlimited current surge through the resulting
forward diode within the IC could cause fusing of the internal
conductors and result in a destroyed unit.
All of the bias currents in these amplifiers are set by FET
current sources. The drain currents for the amplifiers are
therefore essentially independent of supply voltage.
As with most amplifiers, care should be taken with lead
dress, component placement and supply decoupling in order
to ensure stability. For example, resistors from the output to
an input should be placed with the body close to the input to
minimize “pickup” and maximize the frequency of the feed-
back pole by minimizing the capacitance from the input to
ground.
A feedback pole is created when the feedback around any
amplifier is resistive. The parallel resistance and capacitance
from the input of the device (usually the inverting input) to AC
ground set the frequency of the pole. In many instances the
frequency of this pole is much greater than the expected 3dB
frequency of the closed loop gain and consequently there is
negligible effect on stability margin. However, if the feedback
pole is less than approximately six times the expected 3 dB
frequency a lead capacitor should be placed from the output
to the input of the op amp. The value of the added capacitor
should be such that the RC time constant of this capacitor
and the resistance it parallels is greater than or equal to the
original feedback pole time constant.
Typical Circuit Connections
V
OS Adjustment
00564667
V
OS is adjusted with a 25k potentiometer
The potentiometer wiper is connected to V
+
For potentiometers with temperature coefficient of 100
ppm/˚C or less the additional drift with adjust is
≈ 0.5µV/
˚C/mV of adjustment
Typical overall drift: 5µV/˚C ±(0.5µV/˚C/mV of adj.)
Driving Capacitive Loads
00564668
* LF155/6 R = 5k
LF357 R = 1.25k
Due to a unique output stage design, these amplifiers
have the ability to drive large capacitive loads and still
maintain stability. C
L(MAX) . 0.01µF.
Overshoot
≤ 20%
Settling time (t
s) . 5µs
LF357. A Large Power BW Amplifier
00564615
For distortion
≤ 1% and a 20 Vp-p VOUT swing, power bandwidth is:
500kHz.
www.national.com
11


Аналогичный номер детали - LF356

производительномер деталидатащиподробное описание детали
logo
STMicroelectronics
LF356 STMICROELECTRONICS-LF356 Datasheet
250Kb / 14P
   WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIERS
logo
Linear Technology
LF356 LINER-LF356 Datasheet
422Kb / 4P
   JFET-Input Operational Amplifiers Low Supply Current High Speed
logo
National Semiconductor ...
LF356 NSC-LF356 Datasheet
543Kb / 15P
   Series Monolithic JFET Input Operational Amplifiers
logo
Texas Instruments
LF356 TI-LF356 Datasheet
2Mb / 32P
[Old version datasheet]   LF155/LF156/LF256/LF257/LF355/LF356/LF357 JFET Input Operational Amplifiers
LF356 TI-LF356 Datasheet
2Mb / 32P
[Old version datasheet]   JFET Input Operational Amplifiers
More results

Аналогичное описание - LF356

производительномер деталидатащиподробное описание детали
logo
Texas Instruments
TL080 TI-TL080 Datasheet
368Kb / 19P
[Old version datasheet]   JFET-INPUT OPERATIONAL AMPLIFIERS
TL081 TI-TL081 Datasheet
463Kb / 29P
[Old version datasheet]   JFET-INPUT OPERATIONAL AMPLIFIERS
LF156JAN TI1-LF156JAN_13 Datasheet
1Mb / 23P
[Old version datasheet]   JFET Input Operational Amplifiers
LF155 TI1-LF155_16 Datasheet
2Mb / 43P
[Old version datasheet]   JFET Input Operational Amplifiers
TL081 TI1-TL081 Datasheet
2Mb / 50P
[Old version datasheet]   JFET-Input Operational Amplifiers
TL091 TI-TL091 Datasheet
610Kb / 8P
[Old version datasheet]   JFET-INPUT OPERATIONAL AMPLIFIERS
LF156JAN TI1-LF156JAN Datasheet
998Kb / 23P
[Old version datasheet]   JFET Input Operational Amplifiers
LF256H TI-LF256H Datasheet
2Mb / 32P
[Old version datasheet]   JFET Input Operational Amplifiers
logo
Motorola, Inc
TL081C MOTOROLA-TL081C Datasheet
169Kb / 8P
   JFET INPUT OPERATIONAL AMPLIFIERS
logo
Texas Instruments
TL081_101 TI-TL081_101 Datasheet
998Kb / 38P
[Old version datasheet]   JFET-INPUT OPERATIONAL AMPLIFIERS
logo
Motorola, Inc
MC35001 MOTOROLA-MC35001 Datasheet
389Kb / 7P
   JFET Input Operational Amplifiers
More results


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


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   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