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

X  

AD13280 Fiches technique(PDF) 9 Page - Analog Devices

No de pièce AD13280
Description  Dual Channel, 12-Bit, 80 MSPS A/D Converter with Analog Input Signal Conditioning
Download  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD13280 Fiches technique(HTML) 9 Page - Analog Devices

Back Button AD13280 Datasheet HTML 5Page - Analog Devices AD13280 Datasheet HTML 6Page - Analog Devices AD13280 Datasheet HTML 7Page - Analog Devices AD13280 Datasheet HTML 8Page - Analog Devices AD13280 Datasheet HTML 9Page - Analog Devices AD13280 Datasheet HTML 10Page - Analog Devices AD13280 Datasheet HTML 11Page - Analog Devices AD13280 Datasheet HTML 12Page - Analog Devices AD13280 Datasheet HTML 13Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 20 page
background image
REV. 0
AD13280
–9–
AMP-IN-X-1
100
100
TO AD8037
AMP-IN-X-2
Figure 2. Single-Ended Input Stage
LOADS
LOADS
ENCODE
10k
10k
ENCODE
AVCC
AVCC
10k
10k
AVCC
AVCC
Figure 3. ENCODE Inputs
CURRENT MIRROR
CURRENT MIRROR
DR OUT
DVCC
VREF
DVCC
Figure 4. Digital Output Stage
CURRENT MIRROR
CURRENT MIRROR
D0–D11
100
DVCC
VREF
DVCC
Figure 5. Digital Output Stage
THEORY OF OPERATION
The AD13280 is a high-dynamic range 12-bit, 80 MHz pipeline
delay (three pipelines) analog-to-digital converter. The custom
analog input section provides input ranges of 1 V and 2 V p-p
and input impedance configurations of 50
Ω, 100 Ω, and 200 Ω.
The AD13280 employs four monolithic ADI components per
channel (AD8037, AD8138, AD8031, and a custom ADC IC),
along with multiple passive resistor networks and decoupling
capacitors to fully integrate a complete 12-bit analog-to-digital
converter.
In the single-ended input configuration the input signal is passed
through a precision laser trimmed resistor divider allowing
the user to externally select operation with a full-scale signal of
±0.5 V, or ±1.0 V by choosing the proper input terminal for the
application. The result of the resistor divider is to apply a full-
scale input approximately 0.4 V to the noninverting input of the
internal AD8037 amplifier.
The AD13280 analog input includes an AD8037 amplifier featur-
ing an innovative architecture that maximizes the dynamic range
capability on the amplifiers’ inputs and outputs. The AD8037
amplifier provides a high input impedance and gain for driving
the AD8138 in a single-ended to differential amplifier configura-
tion. The AD8138 has a –3 dB bandwidth at 300 MHz and
delivers a differential signal with the lowest harmonic distortion
available in a differential amplifier. The AD8138 differential
outputs help balance the differential inputs to the custom ADC
maximizing the performance of the device.
The AD8031 provides the buffer for the internal reference analog-
to-digital converter. The internal reference voltage of the custom
ADC is designed to track the offsets and drifts and is used to
ensure matching over an extended temperature range of operation.
The reference voltage is connected to the output common-mode
input on the AD8138. This reference voltage sets the output
common mode on the AD8138 at 2.4 V, which is the midsupply
level for the ADC.
The custom ADC has complementary analog input pins,
AIN
and AIN. Each analog input is centered at 2.4 V and should
swing
±0.55 V around this reference. Since AIN and AIN are
180 degrees out of phase, the differential analog input signal is
2.2 V peak-to-peak. Both analog inputs are buffered prior to the
first track-and-hold.
The custom ADC digital outputs drive 100
Ω series resistors (Fig-
ure 5). The result is a 12-bit parallel digital CMOS-compatible
word, coded as two’s complement.
USING THE SINGLE-ENDED INPUT
The AD13280 has been designed with the user’s ease of opera-
tion in mind. Multiple input configurations have been included
on-board to allow the user a choice of input signal levels and
input impedance. The standard inputs are
± 0.5 V and 1.0 V.
The user can select the input impedance of the AD13280 on any
input by using the other inputs as alternate locations for the
GND. The following chart summarizes the impedance options
available at each input location.
AMP-IN-X-1 = 100
Ω when AMP-IN-X-2 is open.
AMP-IN-X-1 = 50
Ω when AMP-IN-X-2 is shorted to GND.
AMP-IN-X-2 = 200
Ω when AMP-IN-X-1 is open.
Each channel has two analog inputs AMP-IN-A-1 and AMP-
IN-A-2 or AMP-IN-B-1 and AMP-IN-B-2. Use AMP-IN-A-1


Numéro de pièce similaire - AD13280

FabricantNo de pièceFiches techniqueDescription
logo
Analog Devices
AD13280/PCB AD-AD13280/PCB Datasheet
1Mb / 28P
   Dual-Channel, 12-Bit, 80 MSPS ADC with Analog Input Signal Conditioning
REV. C
AD13280AF AD-AD13280AF Datasheet
1Mb / 28P
   Dual-Channel, 12-Bit, 80 MSPS ADC with Analog Input Signal Conditioning
REV. C
AD13280AZ AD-AD13280AZ Datasheet
1Mb / 28P
   Dual-Channel, 12-Bit, 80 MSPS ADC with Analog Input Signal Conditioning
REV. C
AD13280BF AD-AD13280BF Datasheet
1Mb / 28P
   Dual-Channel, 12-Bit, 80 MSPS ADC with Analog Input Signal Conditioning
REV. C
AD13280 AD-AD13280_15 Datasheet
1Mb / 28P
   Dual-Channel, 12-Bit, 80 MSPS ADC with Analog Input Signal Conditioning
REV. C
More results

Description similaire - AD13280

FabricantNo de pièceFiches techniqueDescription
logo
Analog Devices
AD10265 AD-AD10265 Datasheet
267Kb / 18P
   Dual Channel, 12-Bit, 65 MSPS A/D Converter with Analog Input Signal Conditioning
REV. 0
AD13280 AD-AD13280_15 Datasheet
1Mb / 28P
   Dual-Channel, 12-Bit, 80 MSPS ADC with Analog Input Signal Conditioning
REV. C
AD13280BF AD-AD13280BF Datasheet
1Mb / 28P
   Dual-Channel, 12-Bit, 80 MSPS ADC with Analog Input Signal Conditioning
REV. C
AD10242 AD-AD10242 Datasheet
251Kb / 16P
   Dual, 12-Bit, 40 MSPS MCM A/D Converter with Analog Input Signal Conditioning
REV. A
AD10200 AD-AD10200 Datasheet
1Mb / 20P
   Dual Channel, 12-Bit 105 MSPS IF Sampling A/D Converter with Analog Input Signal Conditioning
REV. A
AD13465 AD-AD13465 Datasheet
1Mb / 20P
   Dual Channel, 14-Bit, 65 MSPS A/D Converter with Analog Input Signal Conditioning
REV. 0
AD10465 AD-AD10465 Datasheet
2Mb / 20P
   Dual Channel, 14-Bit, 65 MSPS A/D Converter with Analog Input Signal Conditioning
REV. 0
AD10200 AD-AD10200_17 Datasheet
1Mb / 20P
   A/D Converter with Analog Input Signal Conditioning
AD15452 AD-AD15452 Datasheet
340Kb / 16P
   12-Bit 65 MSPS Quad A/D Converter with Integrated Signal Conditioning
REV. 0
logo
Texas Instruments
ADC12DC080 TI1-ADC12DC080_14 Datasheet
1Mb / 27P
[Old version datasheet]   Dual 12-Bit, 80 MSPS A/D Converter with CMOS Outputs
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20


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