Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

AD834JR-REEL7 Fiches technique(PDF) 6 Page - Analog Devices

No de pièce AD834JR-REEL7
Description  500 MHz Four-Quadrant Multiplier
Download  8 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD834JR-REEL7 Fiches technique(HTML) 6 Page - Analog Devices

  AD834JR-REEL7 Datasheet HTML 1Page - Analog Devices AD834JR-REEL7 Datasheet HTML 2Page - Analog Devices AD834JR-REEL7 Datasheet HTML 3Page - Analog Devices AD834JR-REEL7 Datasheet HTML 4Page - Analog Devices AD834JR-REEL7 Datasheet HTML 5Page - Analog Devices AD834JR-REEL7 Datasheet HTML 6Page - Analog Devices AD834JR-REEL7 Datasheet HTML 7Page - Analog Devices AD834JR-REEL7 Datasheet HTML 8Page - Analog Devices  
Zoom Inzoom in Zoom Outzoom out
 6 / 8 page
background image
AD834
REV. C
–6–
Figure 9. Transformer—Coupled Output
A particularly effective type of transformer is the balun
1 which is
a short length of transmission line wound on to a toroidal ferrite
core. Figure 10 shows this arrangement used to convert the
bal(anced) output to an un(balanced) one (hence the use of the
term). Although the symbol used is identical to that for a trans-
former, the mode of operation is quite different. In the first
place, the load should now be equal to the characteristic imped-
ance of the line (although this will usually not be critical for
short line lengths). The collector load resistors RC may also be
chosen to reverse terminate the line, but again this will only be
necessary when an electrically long line is used. In most cases,
RC will be made as large as the dc conditions allow, to minimize
power loss to the load. The line may be a miniature coaxial
cable or a twisted pair.
Figure 10. Using a Balun at the Output
It is important to note that the upper bandwidth limit of the
balun is determined only by the quality of the transmission line;
hence, it will usually exceed that of the multiplier. This is unlike
a conventional transformer where the signal is conveyed as a
flux in a magnetic core and is limited by core losses and leakage
inductance. The lower limit on bandwidth is determined by the
series inductance of the line, taken as a whole, and the load resis-
tance (if the blocking capacitors C are sufficiently large). In
practice, a balun can provide excellent differential-to-single-sided
conversion over much wider bandwidths than a transformer.
1For a good treatment of baluns, see “Transmission Line Transformers” by Jerry
Sevick; American Radio Relay League publication.
WIDEBAND MULTIPLIER CONNECTIONS
Where operation down to dc and a ground based output are
necessary, the configuration shown in Figure 11 can be used.
The element values were chosen in this example to result in a
full-scale output of
±1 V at the load, so the overall multiplier
transfer function is
W = (X1–X2) (Y1–Y2)
where it is understood that the inputs and output are in volts. The
polarity of the output can be reversed simply by reversing either
the X or Y input.
Figure 11. Sideband DC-Coupled Multiplier
The op amp should be chosen to support the desired output
bandwidth. The AD5539 is shown here, providing an overall
system bandwidth of 100 MHz. Many other choices are possible
where lower post multiplication bandwidths are acceptable. The
level shifting network places the input nodes of the op amp to
within a few hundred millivolts of ground using the recom-
mended balanced supplies. The output offset may be nulled by
including a 100
Ω trim pot between each of the lower pair of re-
sistors (3.74 k
Ω) and the negative supply.
The pulse response for this circuit shown in Figure 12; the X in-
put was a pulse of 0 V to +1 V and the Y input was +1 V dc.
The transition times at the output are about 4 ns.
Figure 12. Pulse Response for the Circuit of Figure 11


Numéro de pièce similaire - AD834JR-REEL7

FabricantNo de pièceFiches techniqueDescription
logo
Analog Devices
AD834JRZ AD-AD834JRZ Datasheet
351Kb / 20P
   500 MHz Four-Quadrant Multiplier
Rev. F
AD834JRZ-R7 AD-AD834JRZ-R7 Datasheet
351Kb / 20P
   500 MHz Four-Quadrant Multiplier
Rev. F
AD834JRZ-RL AD-AD834JRZ-RL Datasheet
351Kb / 20P
   500 MHz Four-Quadrant Multiplier
Rev. F
More results

Description similaire - AD834JR-REEL7

FabricantNo de pièceFiches techniqueDescription
logo
Analog Devices
AD834 AD-AD834_12 Datasheet
351Kb / 20P
   500 MHz Four-Quadrant Multiplier
Rev. F
AD834 AD-AD834_15 Datasheet
351Kb / 20P
   500 MHz Four-Quadrant Multiplier
Rev. F
AD734 AD-AD734_15 Datasheet
451Kb / 20P
   10 MHz, Four-Quadrant Multiplier/Divider
Rev. E
AD734ANZ AD-AD734ANZ Datasheet
451Kb / 20P
   10 MHz, Four-Quadrant Multiplier/Divider
Rev. E
AD734SQ AD-AD734SQ Datasheet
451Kb / 20P
   10 MHz, Four-Quadrant Multiplier/Divider
REV. E
logo
Elantec Semiconductor
EL4450C ELANTEC-EL4450C Datasheet
266Kb / 14P
   Wideband Four-Quadrant Multiplier
logo
Intersil Corporation
EL4450 INTERSIL-EL4450 Datasheet
170Kb / 10P
   Wideband Four-Quadrant Multiplier
logo
ON Semiconductor
MC1495 ONSEMI-MC1495 Datasheet
332Kb / 16P
   LINEAR FOUR-QUADRANT MULTIPLIER
August, 2001 ??Rev. 1
logo
Motorola, Inc
MC1494L MOTOROLA-MC1494L Datasheet
519Kb / 14P
   MONOLITHIC FOUR-QUADRANT MULTIPLIER
logo
IC-Haus GmbH
IC-BM ICHAUS-IC-BM Datasheet
329Kb / 7P
   FOUR-CHANNEL FOUR-QUADRANT ANALOG MULTIPLIER
More results


Html Pages

1 2 3 4 5 6 7 8


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
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