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

X  

AD8370ARE Fiches technique(PDF) 1 Page - Analog Devices

No de pièce AD8370ARE
Description  LF to 750 MHz Digitally Controlled VGA
Download  28 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD8370ARE Fiches technique(HTML) 1 Page - Analog Devices

  AD8370ARE Datasheet HTML 1Page - Analog Devices AD8370ARE Datasheet HTML 2Page - Analog Devices AD8370ARE Datasheet HTML 3Page - Analog Devices AD8370ARE Datasheet HTML 4Page - Analog Devices AD8370ARE Datasheet HTML 5Page - Analog Devices AD8370ARE Datasheet HTML 6Page - Analog Devices AD8370ARE Datasheet HTML 7Page - Analog Devices AD8370ARE Datasheet HTML 8Page - Analog Devices AD8370ARE Datasheet HTML 9Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 28 page
background image
LF to 750 MHz
Digitally Controlled VGA
AD8370
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703
© 2004 Analog Devices, Inc. All rights reserved.
FEATURES
Programmable low and high gain (<2 dB resolution)
Low range: −11 dB to +17 dB
High range: +6 dB to +34 dB
Differential input and output:
200 Ω differential input
100 Ω differential output
7 dB noise figure @ maximum gain
Two-tone IP3 of +35 dBm @ 70 MHz
−3 dB bandwidth of 750 MHz
40 dB precision gain range
Serial 8-bit digital interface
Wide input dynamic range
Power-down feature
Single 3 V to 5 V supply
APPLICATIONS
Differential ADC drivers
IF sampling receivers
RF/IF gain stages
Cable and video applications
SAW filter interfacing
Single-ended-to-differential conversion
GENERAL DESCRIPTION
The AD8370 is a low cost, digitally controlled, variable gain
amplifier that provides precision gain control, high IP3, and low
noise figure. The excellent distortion performance and wide
bandwidth make the AD8370 a suitable gain control device for
modern receiver designs.
For wide input, dynamic range applications, the AD8370 pro-
vides two input ranges: high gain mode and low gain mode. A
vernier 7-bit transconductance (Gm) stage provides 28 dB of
gain range at better than 2 dB resolution, and 22 dB of gain
range at better than 1 dB resolution. A second gain range, 17 dB
higher than the first, can be selected to provide improved noise
performance.
The AD8370 is powered on by applying the appropriate logic
level to the PWUP pin. When powered down, the AD8370
consumes less than 4 mA and offers excellent input to output
isolation. The gain setting is preserved when operating in a
power-down mode.
FUNCTIONAL BLOCK DIAGRAM
INHI
INLO
OPHI
OPLO
VCCO
OCOM
ICOM
VOCM
PWUP
VCCO
OCOM
VCCI
ICOM
BIAS CELL
SHIFT REGISTER
AND LATCHES
PRE
AMP
TRANSCONDUCTANCE
OUTPUT
AMP
11
6
1
16
4
14
13
12
5
9
8
3
2
10
7
15
DATA CLCK LTCH
AD8370
Figure 1.
0
10
20
30
40
50
60
70
–30
–20
–10
0
10
20
30
40
0
1020
3040
60
100
50
70
80
90
110 120 130
GAIN CODE
CODE = LAST 7 BITS OF GAIN CODE
(NO MSB)
HIGH GAIN MODE
HIGH GAIN MODE
LOW GAIN MODE
LOW GAIN MODE
∆ GAIN
∆ CODE
≅ 0.409
∆ GAIN
∆ CODE
≅ 0.059
Figure 2. Gain vs. Gain Code at 70 MHz
Gain control of the AD8370 is through a serial 8-bit gain control
word. The MSB selects between the two gain ranges, and the
remaining 7 bits adjust the overall gain in precise linear gain steps.
Fabricated on the ADI high speed XFCB process, the high band-
width of the AD8370 provides high frequency and low distortion.
The quiescent current of the AD8370 is 78 mA typically. The
AD8370 amplifier comes in a compact, thermally enhanced
16-lead TSSOP package and operates over the temperature
range of −40°C to +85°C.


Numéro de pièce similaire - AD8370ARE

FabricantNo de pièceFiches techniqueDescription
logo
Analog Devices
AD8370ARE AD-AD8370ARE Datasheet
826Kb / 28P
   LF to 750 MHz, Digitally Controlled VGA
REV. A
AD8370ARE-REEL7 AD-AD8370ARE-REEL7 Datasheet
826Kb / 28P
   LF to 750 MHz, Digitally Controlled VGA
REV. A
AD8370ARE-REEL7 AD-AD8370ARE-REEL7 Datasheet
774Kb / 28P
   LF to 750 MHz, Digitally Controlled VGA
REV. B
AD8370AREZ AD-AD8370AREZ Datasheet
774Kb / 28P
   LF to 750 MHz, Digitally Controlled VGA
REV. B
AD8370AREZ-RL7 AD-AD8370AREZ-RL7 Datasheet
826Kb / 28P
   LF to 750 MHz, Digitally Controlled VGA
REV. A
More results

Description similaire - AD8370ARE

FabricantNo de pièceFiches techniqueDescription
logo
Analog Devices
AD8370 AD-AD8370_15 Datasheet
774Kb / 28P
   LF to 750 MHz, Digitally Controlled VGA
REV. B
AD8370 AD-AD8370_05 Datasheet
826Kb / 28P
   LF to 750 MHz, Digitally Controlled VGA
REV. A
AD8370-EVALZ AD-AD8370-EVALZ Datasheet
774Kb / 28P
   LF to 750 MHz, Digitally Controlled VGA
REV. B
AD8369 AD-AD8369 Datasheet
968Kb / 24P
   45 dB Digitally Controlled VGA LF to 600 MHz
REV. 0
AD8369 AD-AD8369_15 Datasheet
809Kb / 24P
   45 dB Digitally Controlled VGA LF to 600 MHz
REV. 0
AD8369ARUZ AD-AD8369ARUZ Datasheet
809Kb / 24P
   45 dB Digitally Controlled VGA LF to 600 MHz
REV. 0
ADL5243 AD-ADL5243 Datasheet
1Mb / 32P
   100 MHz to 4000 MHz RF/IF Digitally Controlled VGA
REV. A
ADL5240 AD-ADL5240_13 Datasheet
1Mb / 28P
   100 MHz to 4000 MHz RF/IF Digitally Controlled VGA
ADL5240 AD-ADL5240 Datasheet
1Mb / 24P
   100 MHz to 4000 MHz RF/IF Digitally Controlled VGA
REV. 0
AD8369 AD-AD8369_17 Datasheet
856Kb / 24P
   45 dB Digitally Controlled VGA
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 24 25 26 27 28


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