EVAL-AD7401AEDZ Analog Devices Inc, EVAL-AD7401AEDZ Datasheet

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EVAL-AD7401AEDZ

Manufacturer Part Number
EVAL-AD7401AEDZ
Description
EVALUATION BOARD I.C.
Manufacturer
Analog Devices Inc
Series
iCoupler®r
Datasheets

Specifications of EVAL-AD7401AEDZ

Number Of Adc's
1
Number Of Bits
16
Sampling Rate (per Second)
20M
Data Interface
Serial
Inputs Per Adc
1 Differential
Input Range
±320 mV
Power (typ) @ Conditions
105mW @ 20MSPS
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 125°C
Utilized Ic / Part
AD7401A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FEATURES
Full-featured evaluation board for the AD7400A and AD7401A
EVAL-CED1Z compatible
Standalone capability
On-board analog buffering
Various linking options
PC software for control and data analysis when using the
GENERAL DESCRIPTION
This data sheet describ
and
sigma-delta (Σ-Δ) modulators that convert an analog input
signal into a high speed, 1-bit data stream with on-chip digital
isolation based on the Analog Devices Inc., iCoupler® technol-
ogy. The AD7400A and AD7401A operate from a 5 V power
supply and accept a differential input signal of ±200 mV (±320 mV
Rev. 0
Evaluation boards are only intended for device evaluation and not for production purposes.
Evaluation boards are supplied “as is” and without warranties of any kind, express, implied, or
statutory including, but not limited to, any implied warranty of merchantability or fitness for a
particular purpose. No license is granted by implication or otherwise under any patents or other
intellectual property by application or use of evaluation boards. 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. Analog Devices reserves the right to change devices or specifications at any time
without notice. Trademarks and registered trademarks are the property of their respective owners.
Evaluation boards are not authorized to be used in life support devices or systems.
EVAL-CED1Z
AD7401A
. The
AD7400A and AD7401A
es the evaluation board for the
INPUT SIGNAL
INPUT SIGNAL
ANALOG BUFFER
ANALOG BUFFER
OPTIONAL
OPTIONAL
are
second-order,
FUNCTIONAL BLOCK DIAGRAM
BUFFERED OUTPUT
BUFFERED OUTPUT
AD7400A
SIGNAL
SIGNAL
EXTERNAL
SUPPLY
Figure 1
V
V
V
GND
DD1
IN+
IN–
AD7400A/
AD7401A
1
.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
full scale). The analog input is continuously sampled by the
analog modulator, eliminating the need for external sample-
and-hold circuitry. The input information is contained in the
output stream as a density of ones with a data rate of 10 MHz.
The original information can be reconstructed with an appro-
priate digital filter. The serial I/O can use a 5 V or a 3 V supply
(V
in the AD7400A and AD7401A data sheets, which are available
from Analog Devices and should be consulted in conjunction
with this data sheet when using the evaluation board.
On-board components include two
for buffering the differential analog input to the AD7400A
and AD7401A. Various link options are explained in the Link
Options section. Interface to this board using a standard 2-row
34-pin SPORT connector. This SPORT connector is compatible
with the EVAL-CED1Z, which is available from Analog Devices.
External sockets are also provided for signals.
MCLKOUT/
DD2
MCLKIN
). Full details on the AD7400A and AD7401A are available
MDAT
GND
V
the AD7400A and AD7401A
DD2
2
EXTERNAL
SUPPLY
EVAL-AD7400A/AD7401A
Evaluation Board for
©2008 Analog Devices, Inc. All rights reserved.
CIRCUITS
SUPPLY
POWER
AD797
analog op amps
www.analog.com

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EVAL-AD7401AEDZ Summary of contents

Page 1

... Rev. 0 Evaluation boards are only intended for device evaluation and not for production purposes. Evaluation boards are supplied “as is” and without warranties of any kind, express, implied, or statutory including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose. No license is granted by implication or otherwise under any patents or other intellectual property by application or use of evaluation boards ...

Page 2

... TABLE OF CONTENTS Features .............................................................................................. 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Evaluation Board Hardware ............................................................ 3 Power Supplies .............................................................................. 3 Link Options ................................................................................. 3 Setup Conditions .......................................................................... 4 Interfacing the Evaluation Board to the EVAL-CED1Z ......... 5 Sockets ........................................................................................... 6 Connectors .................................................................................... 6 Test Points ...................................................................................... 6 REVISION HISTORY 11/08—Revision 0: Initial Version   Operating with the EVAL-CED1Z ..............................................6   ...

Page 3

... EVAL-CED1Z operates with a 3.3 V logic level and therefore V be supplied by 3.3 V from an external source. In Position C, the V This connection should not be used because the EVAL-CED1Z operates with a 3.3 V logic level and therefore V should be supplied by 3.3 V from an external source. J10 ...

Page 4

... EVAL-CED1Z or an external source via the J6 SMB socket. Table 2. Link Positions on the Packaged EVAL-AD7400A/AD7401A Link No. Position Function J7 A The MCLKOUT signal from the AD7400A is supplied to the EVAL-CED1Z. The MCLKIN signal from the AD7401A is supplied by the EVAL-CED1Z The MDAT signal from the AD7400A or AD7401A is supplied directly to the EVAL-CED1Z ...

Page 5

... Pin Connection Description 1 +5VD_Edge 5 V digital supply analog supply. 3 DGND Digital ground. These lines are connected to the digital ground plane on the evaluation board connect. Do not use this pin. 5 RESET Reset. 6 SPORT_TSCLK0/SPI_SEL5 SPORT 0 transmit serial clock. SPI Peripheral Chip Select 5. 7 SPORT_RFS0/SPI_SEL3 SPORT 0 receive frame sync ...

Page 6

... AD7401A package. The SPORT connector on the EVAL-AD7400A/AD7401A plugs directly into the SPORT connector on the EVAL-CED1Z board. The EVAL-CED1Z board is powered from power supply which accepts input voltages from 100 V to 240 V ac and contains the relevant adaptors for worldwide use. The power supply is provided with the EVAL-CED1Z ...

Page 7

... PC, the PC automatically finds the new device and identifies it. Follow the on-screen instructions that appear. This installs the drivers for the EVAL-CED1Z on the PC error appears on screen when the software is first opened, then the PC does not recognize the USB device. Correct this error with the following steps: 1 ...

Page 8

... Data Format: The data format is set to binary by default. The Part Information tab also includes a Busy status indicator which lights up when the evaluation board is busy. There is also an Exit button that allows you to quit the program. Rev Page ...

Page 9

... Continuous buttons are located on the top right hand corner of the Data Capture tab. When you click the Sample button, the software instructs the EVAL-CED1Z to take the required number of samples at the required frequency from the evaluation board. The EVAL-AD7400A/AD7401A runs with sampling speeds less than or equal to 39 kSPS ...

Page 10

... EVAL-AD7400A/AD7401A EVALUATION BOARD SCHEMATICS AND ARTWORK EVAL-AD7400A and EVAL-AD7401A schematics, silkscreen, and layout diagrams can be found in Figure 3 to Figure 10. Figure 3. AD7400A Evaluation Board Circuit Diagram, 8-Lead Surface-Mount PDIP Packages with Gull Wing Leads Rev Page 07643-003 ...

Page 11

... Figure 4. AD7401A Evaluation Board Circuit Diagram, 16-Lead SOIC Package Rev Page EVAL-AD7400A/AD7401A 07643-004 ...

Page 12

... Figure 5. Component Side Artwork for the EVAL-AD7400A, 8-Lead Surface-Mount PDIP Packages with Gull Wing Leads Figure 6. Component Side Artwork for the EVAL-AD7401A, 16-Lead SOIC Package Figure 7. Solder Side Artwork for the EVAL-AD7400A, 8-Lead Surface-Mount PDIP Packages with Gull Wing Leads Figure 8. Solder Side Artwork for the EVAL-AD7401A, 16-Lead SOIC Package ...

Page 13

... EVAL-AD7400A/01AEDZ Rev. 0 Figure 9. Silkscreen for the EVAL-AD7400A, 8-Lead Surface-Mount PDIP Packages with Gull Wing Leads a EVAL-AD7400A/01AEDZ Figure 10. Silkscreen for the EVAL-AD7401A, 16-Lead SOIC Package Rev Page EVAL-AD7400A/AD7401A Rev. B1 ...

Page 14

... J9, J10, J14 1 J12 1 FEC = Farnell Electronics, Inc. ORDERING GUIDE Model Description 1 EVAL-AD7400AEDZ Evaluation Board for AD7400A 1 EVAL-AD7401AEDZ Evaluation Board for AD7401A 1 EVAL-CED1Z Converter Evaluation and Development Board RoHS Compliant Part. Description 0.1 μF capacitor 10 μF capacitor 47 pF capacitor 22 Ω resistor ...

Page 15

... NOTES EVAL-AD7400A/AD7401A Rev Page ...

Page 16

... EVAL-AD7400A/AD7401A NOTES ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB07643-0-11/08(0) Rev Page ...

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