поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

AD843K датащи(PDF) 11 Page - Analog Devices

номер детали AD843K
подробное описание детали  34 MHz, CBFET Fast Settling Op Amp
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD843K датащи(HTML) 11 Page - Analog Devices

Back Button AD843K Datasheet HTML 4Page - Analog Devices AD843K Datasheet HTML 5Page - Analog Devices AD843K Datasheet HTML 6Page - Analog Devices AD843K Datasheet HTML 7Page - Analog Devices AD843K Datasheet HTML 8Page - Analog Devices AD843K Datasheet HTML 9Page - Analog Devices AD843K Datasheet HTML 10Page - Analog Devices AD843K Datasheet HTML 11Page - Analog Devices AD843K Datasheet HTML 12Page - Analog Devices  
Zoom Inzoom in Zoom Outzoom out
 11 / 12 page
background image
AD843
REV. D
–11–
MEASURING AD843 SETTLING TIME
Figure 28 shows the dynamic response of the AD843 while op-
erating in the settling time test circuit of Figure 27. The input of
the settling time fixture is driven by a flat-top pulse generator.
The error signal output from A1, the AD843 under test, is am-
plified by op amp A2 and then clamped by two high speed
Schottky diodes.
Figure 28. Settling Characteristics: +10 V to 0 V Step.
Upper Trace: Amplified Error Voltage (0.01%/Div)
Lower Trace: Output of AD843 Under Test (5 V/Div)
The error signal is clamped to prevent it from greatly overload-
ing the oscilloscope preamp. A Tektronix oscilloscope preamp
type 7A26 was chosen because it will recover from the approxi-
mately 0.4 volt overload, quickly enough to allow accurate mea-
surement of the AD843’s 135 ns settling time. Amplifier A2 is a
very high speed op amp; it provides a voltage gain of 10, provid-
ing a total gain of 5 from the error signal to the oscilloscope input.
A FAST PEAK DETECTOR CIRCUIT
The peak detector circuit of Figure 29, can accurately capture
the amplitude of input pulses as narrow as 200 ns and can hold
their value with a droop rate of less than 20
µV/µs. This circuit
will capture the peak value of positive polarity waveforms; to
detect negative peaks, simply reverse the polarity of the two
diodes.
The high bandwidth and 200 V/
µs slew rate of amplifier A2, an
AD843, allows the detector’s output to “keep up” with its input
thus minimizing overshoot. The low (<1 nA) input current of
the AD843 ensures that the droop rate is limited only by the
reverse leakage of diode D2, which is typically <10 nA for the
type shown. The low droop rate is apparent in Figure 30. The
detector’s output (top trace) loses slightly over a volt of the
8 volt peak input value (bottom trace) in 75 ms, or a rate of
approximately 16
µV/µs.
Figure 30. Peak Detector Response to 125 Hz Pulse Train
Figure 31. Peak Capture Time
Amplifier A1, an AD847, can drive 680 pF hold capacitor, CP,
fast enough to “catch-up” with the next peak in 100 ns and still
settle to the new value in 250 ns, as illustrated in Figure 31.
Reducing the value of capacitor CP to 100 pF will maximize the
speed of this circuit at the expense of increased overshoot and
droop. Since the AD847 can drive an arbitrarily large value of
capacitance, CP can be increased to reduce droop, at the expense
of response time.
Figure 29. A Fast Peak Detector Circuit


Аналогичный номер детали - AD843K

производительномер деталидатащиподробное описание детали
logo
Analog Devices
AD843K AD-AD843K Datasheet
448Kb / 12P
   34 MHz, CBFET Fast Settling Op Amp
REV. D
AD843KN AD-AD843KN Datasheet
448Kb / 12P
   34 MHz, CBFET Fast Settling Op Amp
REV. D
More results

Аналогичное описание - AD843K

производительномер деталидатащиподробное описание детали
logo
Analog Devices
AD843 AD-AD843 Datasheet
448Kb / 12P
   34 MHz, CBFET Fast Settling Op Amp
REV. D
AD843 AD-AD843_15 Datasheet
460Kb / 12P
   34 MHz, CBFET Fast Settling Op Amp
REV. D
AD843 AD-AD843_17 Datasheet
485Kb / 13P
   34 MHz, CBFET Fast Settling Op Amp
AD843JNZ AD-AD843JNZ Datasheet
460Kb / 12P
   34 MHz, CBFET Fast Settling Op Amp
REV. D
5962-9098001MPA AD-5962-9098001MPA Datasheet
460Kb / 12P
   34 MHz, CBFET Fast Settling Op Amp
REV. D
AD845 AD-AD845_17 Datasheet
222Kb / 13P
   Precision, 16 MHz CBFET Op Amp
AD845 AD-AD845 Datasheet
234Kb / 8P
   Precision, 16 MHz CBFET Op Amp
REV. D
AD845 AD-AD845_15 Datasheet
217Kb / 12P
   Precision, 16 MHz CBFET Op Amp
REV. E
AD845JRZ-16-REEL7 AD-AD845JRZ-16-REEL7 Datasheet
174Kb / 12P
   Precision, 16 MHz CBFET Op Amp
REV. E
AD845JNZ AD-AD845JNZ Datasheet
217Kb / 12P
   Precision, 16 MHz CBFET Op Amp
REV. E
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


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