background image

EVAL-AD7450A/EVAL-AD7451 

Evaluation Board User Guide 

 

Rev. A | Page 28 of 28 

NOTES 

 

 

 
 

 

ESD Caution  
ESD (electrostatic discharge) sensitive device

. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection 

circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. 

Legal Terms and Conditions 

By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions 

set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you 
have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc. 

(“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, 

temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided 

for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional 
limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term 

“Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including 

ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may 

not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to 
promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any 

occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board. 

Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice 
to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS”  AND ADI MAKES NO 

WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED 

TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL 

PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF 
THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE 

AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable 

United States federal laws and regulations relating to exports. GOVERNING  LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of 

Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby 
submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed.

 

©2006–2013 Analog Devices, Inc. All rights reserved. Trademarks and  
 registered trademarks are the property of their respective owners. 
  

UG06231-0-4/13(A)  

 

Summary of Contents for EVAL-AD7450A

Page 1: ...ntrolled via the USB port of a PC using the AD7450A AD7451 evaluation software The EVAL AD7450ASDZ EVAL AD7451SDZ generates all required power supplies on board and supplies power to the EVAL SDP CB1Z controller board On board components include the following AD8599 Ultralow distortion ultralow noise op amp dual ADP1613 Step up PWM dc to dc switching converter ADP3303 5 High accuracy anyCAP 200 mA...

Page 2: ...Serial Interface 12 Standalone Mode 12 How to Use the Software for Evaluating the AD7450A AD7451 13 Setting Up the System for Data Capture 13 Overview of the Main Window 15 Generating a Waveform Analysis Report 16 Generating a Histogram of the ADC Code Distribution 17 Generating a Fast Fourier Transform of AC Characteristics 18 Generating a Summary of the Waveform Histogram and Fast Fourier Transf...

Page 3: ...ther with the enclosed nylon screw nut set to ensure the boards connect firmly together 3 Connect the 9 V power supply adapter included in the kit to connecter J702 on the EVAL AD7450ASDZ EVAL AD7451SDZ board 4 Connect the EVAL SDP CB1Z board to the PC via the USB cable For Windows XP you may need to search for the EVAL SDP CB1Z drivers Choose to automatically search for the drivers for the EVAL S...

Page 4: ...450A AD7451 evaluation board software 1 With the EVAL AD7450ASDZ EVAL AD7451SDZ board disconnected from the USB port of the PC insert the installation CD into the CD ROM drive 2 Double click the setup exe file to begin the evaluation board software installation The software is installed to the following default location C Program Files Analog Devices AD7450A AD7451 3 A dialog box appears asking fo...

Page 5: ...tion Is Complete Installing the EVAL SDP CB1Z System Demonstration Platform Board Drivers After the installation of the evaluation board software is complete a welcome window is displayed for the installation of the EVAL SDP CB1Z system demonstration platform board drivers 1 With the EVAL SDP CB1Z board still disconnected from the USB port of the PC make sure that all other applications are closed...

Page 6: ...rs 4 To complete the drivers installation click Finish which closes the installation wizard 06231 011 Figure 11 EVAL SDP CB1Z Drivers Setup Completing the Drivers Setup Wizard 5 Before using the evaluation board you must restart your computer A dialog box opens giving you the following options Restart Shut Down Restart Later Click the appropriate button 06231 012 Figure 12 EVAL SDP CB1Z Drivers Se...

Page 7: ...is correctly recognized when connected to the PC Configuring the Evaluation and SDP Boards 1 Connect the EVAL AD7450ASDZ EVAL AD7451SDZ board to Connector A or Connector B on the EVAL SDP CB1Z board a Screw the two boards together using the nylon screw nut set included in the evaluation board kit to ensure that the boards are connected firmly together 2 Connect the power supplies on the EVAL AD745...

Page 8: ... positions are as required by the operating mode When using the EVAL AD7450ASDZ EVAL AD7451SDZ in conjunction with the EVAL SDP CB1Z board connect the ac transformer to Connector J702 VCC VDD VSS and VDRIVE are generated on board Alternatively a bench power supply may be connected to J700 to supply 7 V to 9 V Table 1 External Power Supply Required Power Supply Connector Voltage Range Purpose VIN 1...

Page 9: ...itive terminal of U5 B Position A VREF is supplied to U5 B Position B INPUT B is supplied to U5 B Position C 0 V is supplied to U5 B LK6 VIN source selection Select which buffered signal is routed to AD7450A AD7451 Pin VIN Position A Signal is sourced from single ended to differential buffer output U5 A Position B Signal is sourced from single ended buffer U10 A Position C Signal is sourced from b...

Page 10: ...mplifier negative voltage supplied from an on board supply LK102 A Amplifier positive voltage supplied from an on board supply LK701 A VDD supplied from on board supply 5 V Table 4 Link Options Setup Conditions for AD7451 Link No Position Function LK1 C INPUT A is connected to bias up circuit U7 LK2 Inserted INPUT A input impedance is 51 Ω LK3 B INPUT B is connected to single ended buffer U10 B LK...

Page 11: ...D7450ASDZ EVAL AD7451SDZ are filtered and buffered by an AD8599 The outputs from this amplifier are available to the AD7450A AD7451 VIN input via low pass RC filter network REFERENCE OPTIONS The reference source can be from an ADR431 ultralow noise XFET voltage references with current sink and source capability U2 An external reference voltage may also be applied to J3 EXT_REF SOCKETS CONNECTORS T...

Page 12: ...nicates with the EVAL SDP CB1Z board using level shifters The EVAL SDP CB1Z operates at a 3 3 V logic level This allows VDRIVE voltages exceeding 3 3 V to be used without damaging the SDP interface Details of the serial interface can be found in the AD7450A and AD7451 data sheets STANDALONE MODE The EVAL AD7450ASDZ EVAL AD7451SDZ may also be used without the EVAL SDP CB1Z In this case connect to t...

Page 13: ...Click Device Manager from the list of System Tools see Figure 13 b Analog Devices System Development Platform 32MB should appear under ADI Development Tools indicating that the EVAL SDP CB1Z driver software is installed and that the board is connected to the PC correctly 06231 013 Figure 13 Device Manager Checking that the Board Is Connected to the PC Correctly Launching The Software After complet...

Page 14: ...Evaluation Board User Guide Rev A Page 14 of 28 06231 015 CONTROL CURSOR CONTROL PANNING CONTROL ZOOMING NOTES 1 FOR DETAILS ABOUT THE AREAS HIGHLIGHTED IN RED SEE THE OVERVIEW OF THE MAIN WINDOW SECTION Figure 15 Setup Screen ...

Page 15: ... rate of the ADC selected from the drop down menu Exit Button Section 5 Clicking Exit labeled 5 in Figure 15 closes the software Alternatively you can select Exit from the File menu Busy LED Section 6 The Busy LED labeled 6 in Figure 15 indicates when a read is in progress from the EVAL SDP CB1Z board Tabs Area Section 7 There are four tabs available in the tabs area labeled 7 in Figure 15 of the ...

Page 16: ... WAVEFORM ANALYSIS REPORT Figure 18 illustrates the waveform capture tab for a 100 kHz sine wave input signal The Waveform Analysis area labeled 1 in Figure 18 reports the amplitudes recorded from the captured signal and the frequency of the signal tone 06231 016 Figure 18 Waveform Tab ...

Page 17: ...ick the Histogram tab from the main window 3 Click Sample Raw data is then captured and passed to the PC for statistical computations and various measured values are displayed in the Histogram Analysis area DC Input More commonly the histogram would be used for dc testing where the user tests the ADC for the code distribution for dc input and computes the mean and standard deviation or transition ...

Page 18: ...ed on the sinusoidal signal applied b If a low frequency band pass filter is used when the full scale input range is more than a few volts peak to peak use the on board amplifiers to amplify the signal thus preventing the filter from distorting the input signal 2 Click the FFT tab from the main window 3 Click Sample As in the histogram test raw data is captured and passed to the PC where the FFT i...

Page 19: ...Y OF THE WAVEFORM HISTOGRAM AND FAST FOURIER TRANSFORM Figure 21 shows the Summary tab The Summary tab captures all the display information and provides it in one panel with a synopsis of the information including key performance param eters such as SNR and THD 06231 019 Figure 21 Summary Tab ...

Page 20: ...EVAL AD7450A EVAL AD7451 Evaluation Board User Guide Rev A Page 20 of 28 EVALUATION BOARD SCHEMATIC AND ARTWORK 06231 022 Figure 22 Schematic Page 1 ...

Page 21: ...Evaluation Board User Guide EVAL AD7450A EVAL AD7451 Rev A Page 21 of 28 06231 023 Figure 23 Schematic Page 2 ...

Page 22: ...EVAL AD7450A EVAL AD7451 Evaluation Board User Guide Rev A Page 22 of 28 06231 024 Figure 24 Schematic Page 3 ...

Page 23: ...Evaluation Board User Guide EVAL AD7450A EVAL AD7451 Rev A Page 23 of 28 06231 025 Figure 25 Schematic Page 4 ...

Page 24: ...EVAL AD7450A EVAL AD7451 Evaluation Board User Guide Rev A Page 24 of 28 06231 026 Figure 26 Schematic Page 5 ...

Page 25: ...Evaluation Board User Guide EVAL AD7450A EVAL AD7451 Rev A Page 25 of 28 06231 027 Figure 27 Top Printed Circuit Board PCB Silkscreen 06231 028 Figure 28 Layer 1 Component Side View ...

Page 26: ...EVAL AD7450A EVAL AD7451 Evaluation Board User Guide Rev A Page 26 of 28 06231 029 Figure 29 Layer 2 Component Side View 06231 030 Figure 30 Layer 3 Component Side View ...

Page 27: ...Evaluation Board User Guide EVAL AD7450A EVAL AD7451 Rev A Page 27 of 28 06231 031 Figure 31 Layer 4 Component Side View ...

Page 28: ...ard to any other party for any reason Upon discontinuation of use of the Evaluation Board or termination of this Agreement Customer agrees to promptly return the Evaluation Board to ADI ADDITIONAL RESTRICTIONS Customer may not disassemble decompile or reverse engineer chips on the Evaluation Board Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the...

Reviews: