CN-0227 Datasheet, PDF (5/5 Pages) Analog Devices – High Performance, 16-Bit, 250 MSPS Wideband Receiver with Antialiasing Filter

Circuit Note
COMMON VARIATIONS
For applications that require less bandwidth and lower power,
the ADL5561 differential amplifier can be used. The ADL5561
has a bandwidth of 2.9 GHz and only uses 40 mA of current.
For even lower power and bandwidth, the ADA4950-1 can also
be used. This device has a 1 GHz bandwidth and only uses 10 mA
of current. For higher bandwidth, the 6 GHz ADL5565 differential
amplifier is pin compatible with the others previously listed.
CIRCUIT EVALUATION AND TEST
This circuit uses a modified AD9467-250EBZ circuit board and
the HSC-ADC-EVALCZ FPGA-based data capture board. The
two boards have mating high speed connectors, allowing for the
quick setup and evaluation of the circuit’s performance. The
modified AD9467-250EBZ board contains the circuit evaluated
as described in this note, and the HSC-ADC-EVALCZ data
capture board is used in conjunction with Visual Analog evaluation
software, as well as the SPI Controller software to properly control
the ADC and capture the data. See User Guide UG-200 for the
schematics, BOM, and layout for the AD9467-250EBZ board.
The readme.txt file in the CN-0227 Design Support Package
describes the modifications made to the standard AD9467-250EBZ
board. Application Note AN-835 contains complete details on
how to set up the hardware and software to run the tests described
in this circuit note.
CN-0227
LEARN MORE
CN-0227 Design Support Package:
http://www.analog.com/CN0227-DesignSupport
UG-200: Evaluating the AD9467 16-Bit, 200 MSPS/250 MSPS ADC
Arrants, Alex, Brad Brannon and Rob Reeder, AN-835
Application Note, Understanding High Speed ADC Testing
and Evaluation, Analog Devices.
Ardizzoni, John. A Practical Guide to High-Speed Printed-
Circuit-Board Layout, Analog Dialogue 39-09, September 2005.
MT-031 Tutorial, Grounding Data Converters and Solving the
Mystery of “AGND” and “DGND”, Analog Devices.
MT-101 Tutorial, Decoupling Techniques, Analog Devices.
Quite Universal Circuit Simulator
Nuhertz Technologies, Filter Free Filter Design Program
Reeder, Rob, Achieve CM Convergence between Amps and ADCs,
Electronic Design, July 2010.
Reeder, Rob, Mine These High-Speed ADC Layout Nuggets For
Design Gold, Electronic Design, September 15, 2011.
Rarely Asked Questions: Considerations of High-Speed
Converter PCB Design, Part 1: Power and Ground Planes,
November 2010.
Rarely Asked Questions: Considerations of High-Speed
Converter PCB Design, Part 2: Using Power and Ground
Planes to Your Advantage, February 2011.
Rarely Asked Questions: Considerations of High-Speed Converter
PCB Design, Part 3: The E-Pad Low Down, June 2011.
Data Sheets and Evaluation Boards
AD9467 Data Sheet
ADL5562 Data Sheet
Circuit Evaluation Board (AD9467-250EBZ)
Standard Data Capture Platform (HSC-ADC-EVALCZ)
REVISION HISTORY
2/12—Rev. 0 to Rev. A
Changes to Figure 1 ..........................................................................1
11/11—Revision 0: Initial Version
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