Circuit Note

CN-0227

Rev. A | Page 5 of 5

COMMON VARIATIONS

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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.

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.

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.

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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