AD8273-EVALZ

AD8273-EVALZ/AD8277-EVALZ/AD8279-EVALZ User Guide UG-744 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com Evaluating the AD8273/AD8277/AD8279 Difference Amplifiers FEATURES GENERAL DESCRIPTION Full featured evaluation board for the AD8273/AD8277/AD8279 On-board voltage regulator Low cost and easy to use header for control signals All analog design, no software needed Footprints provided for alternate configurations This user guide describes the evaluation board for the AD8273/ AD8277/AD8279. The design of this board emphasizes simplicity and ease of use. The AD8273/AD8277/AD8279 board comes with a ready assortment of connection options (BNC and RCA connectors), and many configurations are set by jumpers. EVALUATION KIT CONTENTS AD8273-EVALZ/AD8277-EVALZ/AD8279-EVALZ evaluation board AD8273-EVALZ/AD8277-EVALZ/AD8279-EVALZ user guide (UG-744) ADDITIONAL EQUIPMENT NEEDED The AD8273, AD8277, and AD8279 data sheets cover the details of operation of the devices. Using these data sheets for reference helps designers in their end application. The data sheets are helpful for understanding the operation of the AD8273/AD8277/AD8279, especially during the initial configuration and when powering the board up for the first time. A signal generator A single- or dual-output power supply An oscilloscope with at least 20 MHz of bandwidth BNC cables for signal interconnects Test clips for power ONLINE RESOURCES AD8273 data sheet AD8277 data sheet AD8279 data sheet 12545-001 AD8273/AD8277/AD8279 EVALUATION BOARD PHOTOGRAPH Figure 1. AD8273/AD8277/AD8279 Evaluation Board PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. A | Page 1 of 7 UG-744 AD8273-EVALZ/AD8277-EVALZ/AD8279-EVALZ User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Initial Configuration .....................................................................3 Evaluation Kit Contents ................................................................... 1 Power Up ........................................................................................4 Additional Equipment Needed ....................................................... 1 Link Configuration Options ............................................................5 Online Resources .............................................................................. 1 Jumper Configurations .................................................................5 General Description ......................................................................... 1 Factory Default Condition ...........................................................5 AD8273/AD8277/AD8279 Evaluation Board Photograph......... 1 Configurations for Channel 1 ......................................................5 Revision History ............................................................................... 2 Configurations for Channel 2 ......................................................5 Quick Start ......................................................................................... 3 Evaluation Board Schematic ............................................................6 Overview........................................................................................ 3 Ordering Information .......................................................................7 Required Equipment .................................................................... 3 Bill of Materials ..............................................................................7 REVISION HISTORY 8/15—Rev. 0 to Rev. A Changes to Figure 8 .......................................................................... 5 Changes to Table 1 ............................................................................ 7 8/14—Revision 0: Initial Version Rev. A | Page 2 of 7 AD8273-EVALZ/AD8277-EVALZ/AD8279-EVALZ User Guide UG-744 QUICK START OVERVIEW This section outlines the basic configuration of the AD8273/ AD8277/AD8279 evaluation board to test for basic functionality. It outlines the best option for the initial user experience to start up and running quickly. The expected time to be up and running is about ten minutes. REQUIRED EQUIPMENT Besides the AD8273/AD8277/AD8279 evaluation board, a minimum of eight other items are required (see Figure 2). Figure 3. The AD8273/AD8277/AD8279 Evaluation Board with the Basic Power Connections 2. For a single input signal source, the AD8273/AD8277/ AD8279 evaluation board performs best in the noninverting mode of operation. No jumper changes are required for this mode. Connect the signal source to the BNC connector designated J24, as shown in Figure 4. 12545-002 • A signal source such as an arbitrary waveform generator A single or dual output power supply An oscilloscope Two cables, typically BNC to BNC, to connect the test equipment to the AD8273/AD8277/AD8279 evaluation board Three clip leads to connect the power supply to the AD8273/AD8277/AD8279 evaluation board 12545-003 • • • • 12545-004 Figure 2. An Example of the Minimal Requirements for Quick Start Operation INITIAL CONFIGURATION To begin the initial board configuration, use the following steps: 1. With the power supply off, connect the power supply leads to the header, located at the top of the board (see Figure 3). Figure 4. The AD8273/AD8277/AD8279 Evaluation Board with the Source Signal Connected Rev. A | Page 3 of 7 UG-744 Lastly, connect a BNC to BNC cable to the oscilloscope and Connector J27. This step completes the connections for using Channel 1 of the AD8273/AD8277/AD8279 (see Figure 5). 12545-006 3. AD8273-EVALZ/AD8277-EVALZ/AD8279-EVALZ User Guide 12545-005 Figure 6. The Completed Setup 4. Enable the signal source. For the AD8277, a 2 V p-p sine wave appears on the output of the oscilloscope. For the AD8273 and AD8279, a 1 V p-p sine wave appears on the output of the oscilloscope. Figure 5. Completed Connections for Quick Start Usage POWER UP With the initial configuration complete, use the following steps to power up the AD8273/AD8277/AD8279 evaluation board: 3. Set the power supply to either ±5.0 V or +5.0 V. Turn on the supply. The AD8273/AD8277/AD8279 are very low in quiescent current; as a result, some power supplies may not report any current load. Configure the signal source to output a 1 kHz sine wave at 2 V p-p. (Note that if the signal source is relative to a 50 Ω impedance, set the amplitude to 1 V p-p.) 12545-007 1. 2. Figure 7. Final Result with 2 V p-p Signal Appearing on the Oscilloscope Using the AD8277-EVALZ Rev. A | Page 4 of 7 AD8273-EVALZ/AD8277-EVALZ/AD8279-EVALZ User Guide UG-744 LINK CONFIGURATION OPTIONS JUMPER CONFIGURATIONS CONFIGURATIONS FOR CHANNEL 1 The AD8273/AD8277/AD8279 evaluation board offers the user many permutations of device configuration by selecting the appropriate jumpers. Each channel has an independent set of jumpers associated with its configuration and setup. Gain of 2, Difference Amplifier for AD8273 or AD8279 CHANNEL 1 CHANNEL 1 1 J8 1 12545-011 J24 J27 J14 For the AD8273 and AD8279, the factory default configuration is a difference amplifier with a gain of 0.5. For the AD8277, the factory default configuration is a difference amplifier with a gain of 1. J7 1 FACTORY DEFAULT CONDITION 1 1 J13 J23 J9 Figure 11. Schematic for Gain of 2, Difference Amplifier Setting (Note That for the AD8277, the Gain is Still 1) R2 R1 J23 J27 1 J27 R2 J24 R1 J9 R2 = 6kΩ (AD8273) R2 = 40kΩ (AD8277) R2 = 20kΩ (AD8279) CHANNEL 2 1 1 1 J11 J21 J22 J10 1 Figure 12. Jumper Configuration for Gain of 2, Difference Amplifier Setting (Note That for the AD8277, the Gain is Still 1) J28 CONFIGURATIONS FOR CHANNEL 2 12545-008 J26 J12 1 J25 R1 = 12kΩ (AD8273) R1 = 40kΩ (AD8277) R1 = 40kΩ (AD8279) Gain of 2, Difference Amplifier for AD8273 and AD8279 CHANNEL 2 1 Figure 8. Factory Default Jumper Configuration 1 R2 J23 J25 J26 J21 J10 1 1 J28 Figure 9. Factory Configuration for Channel 1 (Difference Amplifier) R1 12545-013 J27 R1 12545-009 J24 J11 1 J22 R1 12545-012 J8 J12 J14 1 J7 1 J24 1 1 J13 J23 Figure 13. Schematic for Gain of 2, Difference Amplifier Setting (Note That for the AD8277, the Gain is Still 1) R1 R2 J25 R2 J25 J26 J28 R1 J28 R2 12545-010 R1 R2 R1 = 12kΩ (AD8273) R1 = 40kΩ (AD8277) R1 = 40kΩ (AD8279) R2 = 6kΩ (AD8273) R2 = 40kΩ (AD8277) R2 = 20kΩ (AD8279) Figure 10. Factory Configuration for Channel 2 (Difference Amplifier) 12545-014 J26 Figure 14. Jumper Configuration for Gain of 2, Difference Amplifier Setting (Note That for the AD8277, the Gain is Still 1) Rev. A | Page 5 of 7 Rev. A | Page 6 of 7 J5 J4 J2 J1 R3 1MΩ GND R4 1MΩ R7 1MΩ GND R8 1MΩ GND GND GND GND J26 005-03-0000 GND J25 005-03-0000 GND GND GND GND J24 005-03-0000 GND J8 005-01-0003 GND GND 7J 05-01-00030 U1 J31 VSS VDD J11 005-01-0003 J23 005-03-0000 J10 005-01-0003 R2 5.1 R1 5.1 _ C1 2.2u + _ U1 GND + GND N$18 GND N$15 GND N$9 N$14 C4 0.01u GND C3 0.01u C2 2.2u GND GND J29 VDD GND J28 005-03-0000 GND J27 005-03-0000 GND GND J3 J6 CH2 JUMPER: J10 (2-3) J11 (1-2) J12 (2-3) J21 (SHORT) J22 (OPEN) DEFAULT CONFIGURATION: CH1 JUMPER: J7 (2-3) J8 (1-2) J9 (2-3) J13 (SHORT) J14 (OPEN) J12 005-01-0003 J30 J14 J22 VSS J13 J21 Figure 15. AD8273/AD8277/AD8279 Evaluation Board Schematic 12545-015 UG-744 AD8273-EVALZ/AD8277-EVALZ/AD8279-EVALZ User Guide EVALUATION BOARD SCHEMATIC AD8273-EVALZ/AD8277-EVALZ/AD8279-EVALZ User Guide UG-744 ORDERING INFORMATION BILL OF MATERIALS Table 1. Quantity 2 2 6 6 6 7 Value 2.2 μF 0.01 μF RCA/RA SIP-3 BNC Not applicable 2 1 5.1 Ω AD8273ARZ, AD8277ARZ, or AD8279ARZ Designator C1, C2 C3, C4 J1, J2, J3, J4, J5, J6 J7, J8, J9, J10, J11, J12 J23, J24, J25, J26, J27, J28 J13, J14, J21, J22, J29, J30, J31 R1, R2 U1 Manufacturer Part Number UMK316BJ225KD-T C1608X7R1H103K080AA RCJ-011 68000-103HLF 5-1634503-1 5-146285-2 Manufacturer Taiyo TDK CUI Inc FCI TE Connectivity TE Connectivity RMCF1206JT5R10 AD8273ARZ, AD8277ARZ, AD8279ARZ Stackpole Analog Devices, Inc. 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. ©2014–2015 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG12545-0-8/15(A) Rev. A | Page 7 of 7