Evaluation Board User Guide UG-252 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 Evaluation Board for the AD7280A Lithium Ion Battery Monitoring System FEATURES GENERAL DESCRIPTION Full-featured evaluation board for the AD7280A EVAL-CED1Z compatible Standalone capability Various linking options Daisy chain capability PC software for control and data analysis when used with the EVAL-CED1Z This user guide describes the evaluation board kit for the AD7280A (EVAL-AD7280AEDZ), which is a complete, 12-bit resolution lithium ion battery monitoring system, integrating multiple voltage and temperature input channels. Full details about the part are available in the AD7280A data sheet from Analog Devices, Inc., which should be consulted in conjunction with this user guide when using the evaluation board. On-board components include the ADG3308 and ADG3301 bidirectional logic level translators, the ADG849 switch and the ADuM1201, and the ADuM5401 digital isolators. Various link options and options for external connectors are explained in Table 1, Table 5, and Table 6. FUNCTIONAL BLOCK DIAGRAM 12-WAY CONNECTOR CS, SCLK, SDI, SDOIo, CNVST ALERTIo AND PD 8-WAY CONNECTOR CELL VOLTAGES 1 TO 6 CB1 TO CB6 AD7280A CShi, SCLKhi, SDIhi, SDOhi, CNVSThi, ALERThi, AND PDhi 12-WAY CONNECTOR Figure 1. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 24 CELL BALANCING CIRCUITRY CELL TEMP 1 TO 6 THERMISTOR CIRCUITRY CELL VOLTAGES 7 TO 12 6-WAY CONNECTOR CB1 TO CB6 AD7280A 7-WAY CONNECTOR CELL TEMP 7 TO 12 CELL BALANCING CIRCUITRY THERMISTOR CIRCUITRY 09706-001 EXTERNAL CONNECTORS CS SCLK SDI SDO CNVST ALERT PD CS SCLK SDI SDO CNVST ALERT PD DIGITAL ISOLATION 96-WAY EDGE CONNECTOR EXTERNAL SUPPLY UG-252 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Connectors .....................................................................................6 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Daisy-Chaining Two or More AD7280A Evaluation Boards .............................................................................................6 Revision History ............................................................................... 2 Test Points ......................................................................................6 Evaluation Board Hardware ............................................................ 3 Evaluation Board Software...............................................................7 Power Supplies .............................................................................. 3 Installing the Software ..................................................................7 Link Options ................................................................................. 3 Setting Up the EVAL-CED1Z ......................................................7 Setup Conditions .......................................................................... 4 Software Operation .......................................................................8 Interfacing the Evaluation Board to the EVAL-CED1Z.......... 4 Using the Software ........................................................................8 Operating with the EVAL-CED1Z Board ................................. 5 Taking Samples ........................................................................... 11 Configuring the AD7280A Evaluation Board........................ 11 Interfacing to the Evaluation Board in Standalone Operation....................................................................................... 5 Evaluation Board Schematics and Artwork................................ 14 Sockets ........................................................................................... 5 Bill of Materials............................................................................... 22 REVISION HISTORY 4/11—Revision 0: Initial Version Rev. 0 | Page 2 of 24 Evaluation Board User Guide UG-252 EVALUATION BOARD HARDWARE POWER SUPPLIES Table 1. Link Option Functions When using this evaluation board with the EVAL-CED1Z, all supplies, with the exception of the battery connections, are provided from the EVAL-CED1Z through the 96-way connector. When using the EVAL-AD7280AEDZ board as a standalone unit, external supplies must be provided. This evaluation board has the following four power supply inputs: • +5 V • +3.3 V • DSP/+3V3 • 0 V (DGND) Link No. LK1 LK2 If the evaluation board is used in standalone mode, 5 V must be connected to the 5 V input to supply the ADG3308, the ADG3301, the ADG849, the ADuM1201, and the ADuM5401. In addition, a suitable voltage should be applied to either the +3.3 V supply pin or the DSP/+3V3 supply pin. This voltage is dependent on the voltage levels of the users external DSP or microprocessor. The AD7280A evaluation board default is to supply 3.3 V to the +3.3 V supply pin. However, users with an external DSP/ microprocessor with voltage levels of either 1.8 V or 5 V should connect the required voltage to the DSP/+3V3 supply pin, remove resistor link R66, and install resistor link R67. Finally, 0 V is connected to the 0 V input. The 5 V, 3.3 V, and DSP/+3V3 supplies are decoupled to the relevant ground plane with 22 μF tantalum capacitors. The ADG3308, the ADuM1201, and the ADuM5401, are decoupled to the relevant ground plane with 0.1 μF multilayer ceramic capacitors. The ADuM1201 and the ADuM5401 are decoupled to the relevant ground plane with 10 μF tantalum and 0.1 μF multilayer ceramic capacitors. Power to supply the two AD7280A parts on the evaluation board is taken from the battery inputs. Extensive ground planes are used on this board to minimize the effect of high frequency noise interference. One ground plane, DGND, is provided for the digital input/output, the ADG3308, ADG3301, ADG849, and the low side of the ADuM5401 and ADuM1201 isolator parts. Separate ground planes, isolated from the DGND plane, are provided for each of the AD7280A parts on the evaluation board. LK3 LK4 LK5 LK6 LK7 LINK OPTIONS There are eight link options that must be positioned for the required operating setup before using the evaluation board. The functions of these options are outlined in Table 1. LK8 Rev. 0 | Page 3 of 24 Function Source of the CS input signal to the AD7280A. In Position A, the CS signal is taken from the externally applied CS signal via the J8 SMA socket or the J7 connector. In Position B, the CS signal is taken from the CED board via the 96-way connector. Source of the SCLK input signal to the AD7280A. In Position A, the SCLK signal is taken from the externally applied CS signal via the J9 SMA socket or the J7 connector. In Position B, the SCLK signal is taken from the CED board via the 96-way connector. Source of the SDI input signal to the AD7280A. In Position A, the SDI signal is taken from the externally applied CS signal via the J10 SMA socket or the J7 connector. In Position B, the SDI signal is taken from the CED board via the 96-way connector. Output path of the SDO output signal from the AD7280A. In Position A, the SDO signal is supplied to the J11 SMA socket or to the J7 connector. In Position B, the SDO signal is supplied to the CED board via the 96-way connector. Source of the CNVST input signal to the AD7280A. In Position A, the CNVST signal is taken from the externally applied CNVST signal via the J12 SMA socket or the J7 connector. In Position B, the CNVST signal is taken from the CED board via the 96-way connector. Source of the PD input signal to the AD7280A. In Position A, the PD signal is taken from the externally applied PD signal via the J13 SMA socket or the J7 connector. In Position B, the PD signal is taken from the CED board via the 96-way connector. Source of the +5 V supply for the EVAL-AD7280AEDZ. In Position A, the +5 V supply is sourced from the evaluation board controller via the 96-way connector. In Position B, the +5 V supply is sourced externally via the J6 connector. Source of the +3.3 V supply for the EVAL-AD7280AEDZ. In Position A, the +3.3 V supply is sourced from the evaluation board controller via the 96-way connector. In Position B, the +3.3 V supply is sourced externally via the J6 connector. Evaluation Board User Guide SETUP CONDITIONS Care should be taken before applying power and signals to the evaluation board to ensure that all link positions are as per the required operating mode. There are two different modes in which to operate the evaluation board. The user can operate the evaluation board with the EVAL-CED1Z, or it can be used as a standalone board. Table 2 shows the position in which all the links are set when the evaluation board is packaged. When the board is shipped, the assumption is that the user will operate with the EVALCED1Z board. The links are set so that all power supplies and control signals are supplied by the EVAL-CED1Z. Position B Function The logic input to the CS pin of the AD7280A is supplied from the EVAL-CED1Z board. The logic input to the SCLK pin of the AD7280A is supplied from the EVAL-CED1Z LK2 B LK3 B The logic input to the SDI pin of the AD7280A is supplied from the EVAL-CED1Z LK4 B The logic output from the SDO pin of the AD7280A is supplied to the EVAL-CED1Z LK5 B Signal TFS RFS TSCLK RSCLK DT0PRI DR0PRI RXINT board. The logic input to the CNVST pin of the AD7280A is supplied from the EVAL-CED1Z GPIO 0 board. LK6 B The logic input to the PD pin of the AD7280A is supplied from the EVAL-CED1Z LK7 A LK8 A +5 V is supplied from the EVAL-CED1Z board. +3.3 V is supplied from the EVAL-CED1Z board. 16 24 32 1 8 16 24 32 Table 3. 96-Way Connector Pin Description board. board. 8 Figure 2. Pin Configuration for the 96-Way Connector, J1 Table 2. Link Positions on the Packaged EVAL-AD7280AEDZ Link No. LK1 1 A B C 09706-002 UG-252 GPIO 1 board. AVCC DVDD INTERFACING THE EVALUATION BOARD TO THE EVAL-CED1Z DGND Interfacing the EVAL-CED1Z board to the evaluation board is via a 96-way connector, J1. The pinout for the J1 connector is shown in Figure 2. AGND Table 3 provides a description of the pins on the 96-way connector used to interface between the EVAL-CED1Z board and the EVAL-AD7280AEDZ. Table 4 gives the pin designnations for the 96-way connector. Rev. 0 | Page 4 of 24 Description Transmit Frame Sync. This output is connected to the CS pin of the AD7280A, via level shift and isolation, to frame the serial data transfer. Receive Frame Sync. This input is connected to the TFS pin on the AD7280A evaluation board to frame the serial data read. Transmit Serial Clock. This output is connected to the SCLK pin of the AD7280A, via level shift and isolation, to clock the serial data transfer. Receive Serial Clock. This input is connected to the TSCLK pin on the AD7280A evaluation board to frame the serial data read. Data Transmit 0 Primary. This output is connected to the SDI pin of the AD7280A via level shift and isolation. Data Receive 0 Primary. This input is connected to the SDO pin of the AD7280A via level shift and isolation. Interrupt. This output is connected to the CNVST pin of the AD7280A, via level shift and isolation. The CNVST signal is used to initiate conversions on the AD7280A. General-Purpose Input Output. This output is used to disable the level shift circuitry and to supply the PD signal to the AD7280A. General-Purpose Input Output. This output is connected to the ALERT pin of the AD7280A via level shift and isolation. Analog +5 V Supply. This is used to supply the ADuM1201, ADuM5241, ADG3308, ADG3301, and ADG849. Digital +3.3 V supply. This is used to supply the ADG3308 and ADG3301. Digital Ground. These lines are connected to the ground plane on the low side of the evaluation board. Analog Ground. These lines are connected to the ground plane on the low side of the evaluation board. Evaluation Board User Guide UG-252 Table 4. 96-Way Connector Pin Functions1 Pin 1 2 3 4 ROW A DTPRI TFS1 TSCLK1 DGND 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 1 DGND ROW C DR1PRI RFS1 RSCLK1 DGND DT0PRI TFS0 TSCLK0 DVDD (+3.3 V) DVDD (+3.3 V) DR0PRI RFS0 RSCLK0 DVDD (+3.3 V) DTOSEC DGND DGND GPIO5 GPIO0 DGND DGND DGND AGND AGND AGND AGND AGND AGND AGND −12 V AVSS (−5 V) AVCC (+5 V) ROW B GPIO3 contains the relevant adaptors for worldwide use. The power supply is provided with the EVAL-CED1Z. GPIO1 DGND AGND AGND AGND AGND AGND AGND AGND AGND AGND AGND AVSS (−5 V) AVCC (+5 V) Connection between the EVAL-CED1Z and the USB port of a PC is via a standard USB 2.0 connection cable that is provided as part of the EVAL-CED1Z package. GPIO6 DGND DROSEC GPIO7 GPIO4 DGND RXINT INTERFACING TO THE EVALUATION BOARD IN STANDALONE OPERATION Options for interfacing with the evaluation board are via J1, the 96-way connector to the EVAL-CED1Z board, or via J7, an 8-way connector. The J7 connector is provided to allow the evaluation board to be interfaced with systems other than the Analog Devices EVAL-CED1Z board. The pin designations for the J7 connector are shown in Table 5. Note that the AD7280A evaluation board is shipped with the assumption that the user will be operating with the EVALCED1Z board. For this reason, the J7 connector is not inserted. Table 5. Pin Designations for 8-Way Connector J7 Pin No. 1 2 3 4 5 6 7 8 DGND AGND AGND AGND AGND AGND AGND Function CS SCLK SDI SDO CNVST ALERT PD GND SOCKETS There are five input sockets and one output socket relevant to the operation of the AD7280A on the evaluation board. The functions of these sockets are outlined in Table 6. These sockets are used to apply externally generated digital input/output signals to the evaluation board. When operating the board with the EVAL-CED1Z board, these external connections are not required. AGND +12 V AVSS (−5 V) AVCC (+5 V) The unused pins of the 96-way connector are not shown. OPERATING WITH THE EVAL-CED1Z BOARD The evaluation board can be operated in a standalone mode or operated in conjunction with the EVAL-CED1Z board. This evaluation board controller is available from Analog Devices under the order entry EVAL-CED1Z. When interfacing the EVAL-AD7280AEDZ directly to the EVAL-CED1Z board, all supplies, with the exception of the battery connections, and control signals to operate the AD7280A board are provided by the EVAL-CED1Z board. Software to communicate with the EVAL-CED1Z and AD7280A is provided with the AD7280A evaluation board package. The 96-way connector on the EVAL-AD7280AEDZ plugs directly into the 96-way connector on the EVAL-CED1Z board. Note that the AD7280A evaluation board is shipped with the assumption that the user will be operating with the EVALCED1Z board. For this reason, the sockets J8 to J13 are not inserted. Table 6. Sockets Socket J8 J9 J10 J11 J12 J13 The EVAL-CED1Z board provides all the supplies for the evaluation board. It is powered from a +7 V, 15 W power supply that accepts input voltages from 100 V to 240 V ac and Rev. 0 | Page 5 of 24 Function SMA socket for external CS input. SMA socket for external SCLK input. SMA socket for external SDI input. SMA socket for external SDO output SMA socket for external CNVST input. SMA socket for external PD input. UG-252 Evaluation Board User Guide CONNECTORS There are ten connectors on the AD7280A evaluation board. The functions of these connectors are outlined in Table 7. Connector J1 is used to interface with the EVAL-CED1Z board. Connectors J2 and J3 are used to connect the AD7280As to the battery cells. Connectors J1, J2, and J3 are inserted on the AD7280A evaluation board when the board is packaged. The remaining connectors, J4 to J7 and J14 to J16, are not inserted. Table 7. Connector J1 J2 J3 J4 J5 J6 J7 J14 J15 J16 Function 96-way connector for CED interface connections 7-way connector for 6 Li-Ion battery cells 6-way connector for additional 6 Li-Ion battery cells 8-way connector for 6 thermistor inputs 8-way connector for 6 additional thermistor inputs External 5 V, 3.3 V, DSP/3V3, and GND power connector 8-way connector external DSP/microprocessor operation 6-way connector, reserved for Analog Devices test requirements External 12-way connector to allow daisy-chaining of evaluation boards External 12-way connector to allow daisy-chaining of evaluation boards DAISY-CHAINING TWO OR MORE AD7280A EVALUATION BOARDS The AD7280A evaluation board includes two connectors, J15 and J16, which allow two or more AD7280A evaluation boards to be daisy-chained together. A connection should be made between J16 on the evaluation board connected to the DSP/ microprocessor, measuring voltage on battery cells 1 through 12, and connector J15 on the evaluation board connected to battery cells 13 through 24. The default setting of each AD7280A evaluation board is for the master pin on Device 0 to be tied to VDD through a 10 kΩ resistor, R88. Each board also includes an option to solder a resistor, R89, from the master pin to VSS. When daisy-chaining two or more evaluation boards, the R88 resistor on slave boards should be removed and a 10 kΩ resistor should be included in the R89 footprint. The pin designations for the J15 and J16 connectors are shown in Table 8 and Table 9. Table 8. Pin Designations for 12-Way Connector J15 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 Function GND GND PD CS SCLK SDI CNVST SDO ALERT GND GND GND Table 9. Pin Designations for 12-Way Connector J16 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 Function VDD VDD PDhi CShi SCLKhi SDOhi CNVSThi SDIhi ALERThi VDD VDD VDD TEST POINTS There are numerous test points on the AD7280A evaluation board. These enable the user to have easy access to these signals for probing, evaluation, and debugging. Rev. 0 | Page 6 of 24 Evaluation Board User Guide UG-252 SETTING UP THE EVAL-CED1Z EVALUATION BOARD SOFTWARE INSTALLING THE SOFTWARE The EVAL-AD7280AEDZ evaluation kit includes self-installing software on a CD ROM for controlling and evaluating the performance of the AD7280A when it is operated with the EVAL-CED1Z board. If the setup file does not run automatically, setup.exe can be run from the CD-ROM. When the CD is inserted into the PC, an installation program automatically begins. This program installs the evaluation software. The user interface on the PC is a dedicated program written especially for the AD7280A when operating with the EVAL-CED1Z board. The software should be installed before the USB cable is connected between the EVAL-CED1Z and the PC. This ensures that the appropriate USB driver files have been properly installed before the EVAL-CED1Z is connected to the PC. When the software is run for the first time with the EVALCED1Z board connected to the PC, the PC automatically finds the new device and identifies it. Follow the on-screen instructions that appear automatically to install the drivers for the EVAL-CED1Z board on the PC. If an error appears when the software is opened, the PC does not recognize the USB device. This error is corrected by 1. 2. 3. 4. 5. 6. Opening the Device Manager. The Device Manager is accessed by right clicking on the My Computer icon, and selecting Properties. When the System Properties Window opens, select the Hardware tab. Click on Device Manager in the Hardware tab of the System Properties window. Examine the devices listed under the Universal Serial Bus Controller heading. If an unknown device is listed, right-click this option and select Update Driver. The New Hardware Wizard runs twice, and under the ADI Development Tools the following hardware is listed: ADI Converter Evaluation and Development Board (WF) Reboot the PC. This section describes how the evaluation board, the EVALCED1Z board, and the software should be set up to begin using the complete system. • • • • • • • Install the AD7280A evaluation board software. Connect the AD7280A evaluation board to the battery via connectors J2 and J3. Connect the EVAL-CED1Z board and the evaluation board together via the 96-way connector. Apply power to the EVAL-CED1Z via the +7 V, 15 W power supply provided. At this stage, the green LED labeled Power on the EVALCED1Z should be lit, which indicates that the EVALCED1Z is receiving power. Connect the USB cable between the PC and the EVALCED1Z. A green LED positioned beside the USB connector on the EVAL-CED1Z board lights up, indicating that the USB connection has been established. The EVAL-AD7280AEDZ is detected. Proceed through any dialog boxes that may appear (use the recommended options) to finalize the installation. Start the EVAL-AD7280AEDZ software. The FPGA code is automatically downloaded to the EVAL-CED1Z. The red LED, D14, on the EVAL-CED1Z is now lit. This indicates that the EVAL-CED1Z is functional and ready to receive instructions. The software can now be operated. When completing conversions on the AD7280A evaluation board using the EVAL-CED1Z board, the red LED, D14, on the EVAL-CED1Z lights up to indicate that the conversions are occurring. Rev. 0 | Page 7 of 24 UG-252 Evaluation Board User Guide SOFTWARE OPERATION With the hardware set up, you can now use the software to control the EVAL-CED1Z and the AD7280A evaluation board. To launch the software, from the Analog Devices menu, click the AD7280A submenu, then click on the AD7280A icon. Figure 3 displays the main window. If an error message appears, click OK and restart the application after checking the connection between the adapter board and the USB port on the PC. Also, check that the USB device is identified by the Device Manager as detailed in the Installing the Software section. The software that controls the EVAL-CED1Z and, therefore, the AD7280A evaluation board has one main window. Figure 3 shows the window that appears when the software runs. The main function of this window is to allow you to read samples from the evaluation board and display them. The screen can be divided into three main sections as follows: • • • Menu bar Control buttons Data capture display USING THE SOFTWARE Menu Bar The menu bar consists of the following menus: Save (Conversion Data). Saves the conversion data to a spreadsheet file. Print Front Panel Picture. Prints the software screen displayed. Save as Picture. Saves the displayed screen plot, that is, voltage or VT waveforms. Exit. Closes the AD7280A evaluation software. Control Buttons The AD7280A software includes the following user-controlled buttons on the front panel: Single AD7280A Eval Board/2 AD7280A Eval Boards. This drop-down menu selects whether the EVAL-CED1Z interfaces to a single AD7280A evaluation board or to two daisy-chained AD7280A evaluation boards. Initialize. Resends the AD7280A FPGA code to the EVALCED1Z and writes to all the AD7280A devices in the chain to set up their device addresses correctly. Real Time. Initiates continuous conversions on the AD7280A evaluation board. The default conversion loop interval is 2 ms and can be changed by accessing the Configure AD7280A button. Read/Write Registers. Allows the user to read from and write to the registers on both AD7280As on the evaluation board. Figure 4 shows the window that appears when this button is pressed. Configure AD7280A. Allows the user to configure the number of voltage and temperature channels converted and read back on each AD7280A on the evaluation board; also allows the user to set up averaging and acquisition time, specify the SCLK frequency, and set the conversion loop interval. Figure 5 shows the window that appears when this button is pressed. Software Reset. Executes a software reset on all AD7280As on the evaluation board. Software PD. Places all AD7280A devices into software powerdown mode. Self Test. Allows the user to execute the self-test functionality on any AD7280A device on the board. Hardware PD. Places all AD7280A devices into hardware power-down mode. This button must be pressed again in order to power up the devices again. STOP. Closes the AD7280A evaluation software. Other items are also included on the front panel, such as the CED Buffer indicator. The AD7280A evaluation board allows conversions on all or selected channels to be initiated at periodic intervals. The default conversion loop interval is 2 ms, but can be increased to 5 ms, 10 ms, or 30 ms through the Configure AD7280A button. The AD7280A evaluation software and hardware are designed such that all conversion results are written to external memory on the EVAL-CED1Z, and blocks of samples are then uploaded through the USB port to the PC. The CED buffer indicator provides an indication of the available memory remaining. If there is a lot of activity on the USB port, the transfer of data may be slowed down, which may cause the external memory to fill before the data can be uploaded to the PC. In this case, the CED buffer indicator shows that the buffer is full. The user should either disconnect other external devices which may be using the USB port, or increase the conversion loop interval to decrease the number of samples to upload to ease the requirement on the USB port. Note that the transfer of data from the EVAL-CED1Z to the PC is slower when connecting to a USB 1.1 port then it is when connecting to a USB 2.0 port. Underneath the CED buffer indicator there are two CRC indicators. The numeric displays the number of CRC errors that have occurred to date for the particular data capure. The light flashes each instant that a CRC error occurs. Data Capture Display In the data capture display, the user can select the format to view the cell voltage or cell temperature conversion results. For both cell voltage and temperature conversions, the data can be displayed either in digital output code format or as an equivalent voltage. The desired display options are selected by clicking the Voltage(Codes), Voltage(Volts), VT output(Codes), and VT output (Volts) tab buttons. If a second EVAL-AD7280AEDZ evaluation board is connected, there is a seperate set of tabs for the results from this board. Rev. 0 | Page 8 of 24 UG-252 09706-003 Evaluation Board User Guide Figure 3. AD7280A Main Window Rev. 0 | Page 9 of 24 UG-252 Evaluation Board User Guide Voltage(Codes) Tab VT output (Codes) Tab The Voltage(Codes) tab displays the conversion results of the VIN inputs of the two AD7280A devices on each AD7280A evaluation board. The conversion results are displayed, on the running chart, as integer code values. The VT output (Codes) tab displays the conversion results of the VT inputs of the two AD7280A devices on each AD7280A evaluation board. The conversion results are displayed on the running chart as integer code values. The upper chart refers to the conversion results from Device 0 or Device 2 on the AD7280A evaluation board. The lower chart refers to the conversion results from Device 1 or Device 3. The instantaneous value of each conversion result is displayed, in hexadecimal format, on the individual indicators to the right of each chart. If the user would like to focus only on the results of certain channels, the conversion results input to the chart from the remaining channels may be individually removed from the plot using the Plot EN buttons to the right of each chart. The upper chart refers to the conversion results from Device 0 or Device 2 on the AD7280A evaluation board. The lower chart refers to the conversion results from Device 1 or Device 3. The instantaneous value of each conversion result is displayed in hexadecimal format on the individual indicators to the right of each chart. If the user would like to focus only on the results of certain channels, the conversion results input to the chart from the remaining channels can be individually removed from the plot using the Plot EN buttons to the right of each chart. At the bottom left of the graph are the zoom options. These allow you to zoom in and out to get a closer look at a sample, if required. At the bottom left of the graph are the zoom options. These allow you to zoom in and out to get a closer look at a sample, if required. Voltage(Volts) Tab VT output (Volts) Tab The Voltage(Volts) tab displays the conversion results of the VIN inputs of the two AD7280A devices on each AD7280A evaluation board. The conversion results are displayed on the running chart in units of voltage. Note that the voltage output is calculated using an LSB size of 977 μV, that is, 4 V/4096 and offset by 1 V to allow for the 1 V to 5 V input range specified on the AD7280A cell voltage measurement channels. The VT output (Volts) tab displays the conversion results of the VT inputs of the two AD7280A devices on each AD7280A evaluation board. The conversion results are displayed on the running chart in units of voltage. Note that the voltage output is calculated using an LSB size of 1.22 mV, that is 5 V/4096. The upper chart refers to the conversion results from Device 0 or Device 2 on the AD7280A evaluation board. The lower chart refers to the conversion results from Device 1 or Device 3. The instantaneous value of each conversion result is displayed, in voltage format, on the individual indicators to the right of each chart. If the user would like to focus only on the results of certain channels, the conversion results input to the chart from the remaining channels can be individually removed from the plot using the Plot EN buttons to the right of each chart. At the bottom left of the graph are the zoom options. These allow you to zoom in and out to get a closer look at a sample, if required. The upper chart refers to the conversion results from Device 0 or Device 2 on the AD7280A evaluation board. The lower chart refers to the conversion results from Device 1 or Device 3. The instantaneous value of each conversion result is displayed in hexadecimal format on the individual indicators to the right of each chart. If the user would like to focus only on the results of certain channels, the conversion results input to the chart from the remaining channels can be individually removed from the plot using the Plot EN buttons to the right of each chart. At the bottom left of the graph are the zoom options. These allow you to zoom in and out to get a closer look at a sample, if required. Rev. 0 | Page 10 of 24 Evaluation Board User Guide UG-252 TAKING SAMPLES Initiating Conversions To initiate conversions and capture the sample data, click the Real Time button. When you click the Real Time button, the software instructs the EVAL-CED1Z board to continuously initiate conversions and read back the conversion data from the AD7280A evaluation board. The AD7280A evaluation board allows conversions on all or selected channels to be initiated at periodic intervals. The default conversion loop interval is 2 ms, but this can be increased to 5 ms, 10 ms, or 30 ms through the Configure AD7280A button. The samples taken are then uploaded and displayed on the Data Capture tabs. To stop conversions, click the Real Time button again Reading From and Writing to Registers To read from and write to the registers on the two AD7280A devices on the AD7280A evaluation board, click the Read/Write Registers button. When you click the Read/Write Registers button, the software instructs the EVAL-CED1Z board to read the data in each of the AD7280A registers and displays this information on the screen, as shown in Figure 4. The register data for Device 0 is on the top left of the screen, the register data for Device 1 is on the top right, the register data for Device 2 is on the bottom left of the screen and the register data for Device 3 is on the bottom right of the screen. The register data is presented in binary format. To change the settings of any of the displayed registers, overwrite the displayed binary value with the new value and then click the Update button. Note that one or all of the registers can be written to with a single update. CONFIGURING THE AD7280A EVALUATION BOARD The default configuration of the AD7280A on power-up converts on all voltage and VT channels following a convert start request. The AD7280A allows the option of converting and reading back conversion data from • • • 6 voltage and 6 VT channels 6 voltage and 3 VT channels 6 voltage channels only The user can select the desired configuration by clicking the Configure AD7280A button. Clicking this button opens a new window (see Figure 5), which allows the numbers of channels to convert and read back to be selected using the pull-down menus. This window also provides a pull-down menu to allow you to select which averaging to use for the conversions as well as to select the acquisition time, the conversion loop interval, and the SCLK frequency for the data capture. Increasing the conversion loop interval is recommended in the event that activity on the USB port is slowing down the transfer of data from the EVAL-CED1Z board to the PC. For more information, refer to the Using the Software section. Rev. 0 | Page 11 of 24 Evaluation Board User Guide 09706-004 UG-252 Figure 4. AD7280A Read/Write Register Window Rev. 0 | Page 12 of 24 UG-252 09706-005 Evaluation Board User Guide Figure 5. Configure AD7280A Window Rev. 0 | Page 13 of 24 J2-1 J2-2 J2-3 J2-4 J2-5 J2-6 J2-7 J3-1 J3-2 J3-3 J3-4 J3-5 CHIP0_VDD_CHIP1_VSS VIN6_SE2 VIN0_SE EXT_CHIP0_VIN0 EXT_CHIP0_VIN1 EXT_CHIP0_VIN2 EXT_CHIP0_VIN3 EXT_CHIP0_VIN4 EXT_CHIP0_VIN5 EXT_CHIP1_VIN0 EXT_CHIP1_VIN1 EXT_CHIP1_VIN2 EXT_CHIP1_VIN3 EXT_CHIP1_VIN4 EXT_CHIP1_VIN5 0.1uF C82 0.1uF C83 VIN5_SE VIN4_SE 10K R1 10K R2 10K R3 10K R4 10K R5 10K R6 10K R7 10K R8 10K R9 10K R10 10K R11 10K R12 10K R13 10K C88 0.1uF 0.1uF 0.1uF C89 0.1uF C90 VIN11_SE VIN10_SE VIN9_SE C87 VIN7_SE VIN8_SE C81 0.1uF C80 VIN3_SE 0.1uF VIN1_SE VIN2_SE VIN0 VIN1 VIN2 VIN3 VIN4 VIN5 VIN6 VIN7 VIN8 VIN9 VIN10 VIN11 C85 0.1uF 0.1uF C91 0.1uF C92 VIN12_SE 0.1uF C84 VIN6_SE VIN0_SE 0.1uF C1 VIN1_SE 0.1uF C2 VIN2_SE C3 0.1uF VIN3_SE 0.1uF C4 VIN4_SE 0.1uF C5 VIN5_SE 0.1uF C6 VIN6_SE VIN6_SE2 C7 0.1uF VIN7_SE C8 0.1uF VIN8_SE C9 0.1uF VIN9_SE C10 0.1uF VIN10_SE C11 0.1uF VIN11_SE C12 0.1uF VIN12_SE 0.1uF C93 0.1uF C86 VIN0_2 VIN1_2 VIN2_2 VIN3_2 VIN4_2 VIN5_2 VIN6_2 VIN6_3 VIN7_2 VIN8_2 VIN9_2 VIN10_2 VIN11_2 0.1uF EXT_CHIP0_VIN0 EXT_CHIP1_VIN0 0.1uF C64 CHIP0_VDD_CHIP1_VSS L4 L5 CHIP0_VDD_CHIP1_VSS 0.1uF C14 Place as close as possible to Daisychain pin on U2 CHIP0_VDD_CHIP1_VSS EXT_CHIP1_VIN0 C22 0.1uF L6 C67 22pF C66 22pF 10uF C21 Connection only relevant if connecting 2 boards together C65 EXT_CHIP1_VIN6 CHIP1_VDD_CHIP2_VSS CHIP1_VDD_CHIP2_VSS Place as close as possible to Daisychain pin on U2 K A R14 30V D19 10uF C13 22pF C68 22pF C69 22pF 22pF C24 10K 22pF C72 22pF 22pF C75 0.1uF VREF1 22pF C74 C16 1uF C73 J17-2 C15 U2 AD7280 A VT6 VT5 VT4 VT3 VT2 VT1 VIN6 VIN5 VIN4 VIN3 VIN2 VIN1 VIN0 22pF 22pF C77 R89 N/L REFGND CREF VREF R88 C76 41 39 40 16 VDD 33 34 35 36 37 38 1 3 5 7 9 11 13 Place as close as possible to Daisychain pin on U1 10K R90 N/L REFGND CREF VREF 10K 41 39 40 VT6_CHIP0 VT5_CHIP0 VT4_CHIP0 VT3_CHIP0 VT2_CHIP0 VT1_CHIP0 22pF C71 VT6 VT5 VT4 VT3 VT2 VT1 VIN6 VIN5 VIN4 VIN3 VIN2 VIN1 VIN0 16 VDD 33 34 35 36 37 38 1 3 5 7 9 11 13 R91 0.1uF VREF2 R17 N/L Place as close as possible to Daisychain pin on U1 22pF C70 J18-2 C23 1uF VT6_CHIP1 VT5_CHIP1 VT4_CHIP1 VT3_CHIP1 VT2_CHIP1 VT1_CHIP1 C79 C78 32 VTTERM EXT_CHIP1_VIN6 D18 30V VSS 17 AGND 31 VIN12_2 32 VTTERM VIN12 VSS J3-6 14 28 25 24 23 22 21 15 27 26 10K 10K 17 K A J16-12 J16-11 J16-10 J16-9 J16-8 J16-7 J16-6 J16-5 J16-4 J16-3 J16-2 J16-1 42 43 44 45 46 47 48 ALERTHI SDIHI CNVSTHI SDOHI SCLKHI CSHI PDHI AD7280 A U1 DGND VDRIVE AVCC DVCC VREG 20 29 30 19 18 VREG2 0.1uF 0.1uF C27 C28 DGND VDRIVE AVCC DVCC VREG 1K R105 20 29 30 19 18 R108 R107 10K 1K N/L 1K N/L 0.1uF C20 0.1uF C19 N/L 1uF 0.1uF C18 0r J17-3 J18-1 J18-4 C17 R106 R16 J15-1 J15-2 J15-3 J15-4 J15-5 J15-6 J15-7 J15-8 J15-9 J15-10 J15-11 J15-12 SCLK SDI CONVST CS ALERT SDO VREG1 10K N/L 1K R15 1uF 0.1uF C26 VREG_CHIP1 C25 J18-3 R104 CHIP1_VDD_CHIP2_VSS CHIP1_CB1 CHIP1_CB2 CHIP1_CB3 CHIP1_CB4 CHIP1_CB5 CHIP1_CB6 12 10 8 6 4 2 CB1 CB2 CB3 CB4 CB5 CB6 MASTER ALERTLO SDOLO CNVST SDI SCLK CS PD ALERT SDO AGND TP2 TP1 CHIP0_CB1 CHIP0_CB2 CHIP0_CB3 CHIP0_CB4 CHIP0_CB5 CHIP0_CB6 12 10 8 6 4 2 CB1 CB2 CB3 CB4 CB5 CB6 42 43 44 45 46 47 48 ALERTHI SDIHI CNVSTHI SDOHI SCLKHI CSHI PDHI 31 Rev. 0 | Page 14 of 24 MASTER ALERTLO SDOLO CNVST SDI SCLK CS PD ALERT SDO Figure 6. EVAL-AD7280AEDZ Schematic—Page 1 14 28 25 24 23 22 21 15 27 26 PD VDRIVE VREG_CHIP0 J17-4 J17-1 UG-252 Evaluation Board User Guide EVALUATION BOARD SCHEMATICS AND ARTWORK 09706-006 Figure 7. EVAL-AD7280AEDZ Schematic—Page 2 EXT_CHIP0_VIN0 EXT_CHIP0_VIN1 EXT_CHIP0_VIN2 EXT_CHIP0_VIN3 EXT_CHIP0_VIN4 EXT_CHIP0_VIN5 68r 68r R22 R23 68r 68r R29 68r 68r 68r R28 R27 R26 R25 Q4 BSS138 Q5 BSS138 Q6 BSS138 Q1 BSS138 Q2 BSS138 Q3 BSS138 68r 68r R21 R24 68r 68r 68r R20 R19 R18 S D S D S D S D S D S D G G G G G G D20 15V D21 15V D22 15V D23 15V D24 15V D25 15V N/L 0r R116 N/L 0r R115 R97 R96 N/L 0r R114 R95 N/L 0r R113 R94 N/L 0r R112 R93 N/L 0r R111 R92 CB3 CB4 CB5 CB1 CB2 10K 10K 10K 10K 10K 10K CB6 CHIP0_CB1 CHIP0_CB2 CHIP0_CB3 CHIP0_CB4 CHIP0_CB5 CHIP0_CB6 EXT_CHIP1_VIN0 EXT_CHIP1_VIN1 EXT_CHIP1_VIN2 EXT_CHIP1_VIN3 EXT_CHIP1_VIN4 EXT_CHIP1_VIN5 EXT_CHIP1_VIN6 R41 R40 R39 R38 R37 R36 R35 R34 R33 R32 R31 R30 68r 68r 68r 68r 68r 68r 68r 68r 68r 68r 68r 68r Q7 BSS138 Q8 BSS138 Q9 BSS138 Q10 BSS138 Q11 BSS138 Q12 BSS138 S D S D S D S D S D S D G G G G G G D26 15V D27 15V D28 15V D29 15V D30 15V D31 15V 0r R120 N/L 0r R119 N/L 0r N/L 0r R122 N/L 0r R121 N/L R103 R102 R101 R100 R118 N/L R99 R98 R117 0r Rev. 0 | Page 15 of 24 CB11 10K 10K CB7 CB8 CB9 CB10 10K 10K 10K 10K CB12 CHIP1_CB1 CHIP1_CB2 CHIP1_CB3 CHIP1_CB4 CHIP1_CB5 CHIP1_CB6 09706-007 EXT_CHIP1_VIN0 Evaluation Board User Guide UG-252 UG-252 Evaluation Board User Guide J5-1 R42 R43 R44 R45 R46 R47 10K 10K 10K 10K 10K 10K VREG_CHIP1 J5-2 J5-3 J5-4 J5-5 J5-6 0r R50 0r R49 0r R51 0r R52 0r R53 0r VT1_CHIP1 VT2_CHIP1 VT3_CHIP1 VT4_CHIP1 VT5_CHIP1 VT6_CHIP1 10K 10K T12 10K T11 10K T10 10K T9 10K T8 T7 J5-7 R48 C29 C30 C31 C32 C33 C34 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF J5-8 CHIP0_VDD_CHIP1_VSS J4-1 R54 R55 R56 R57 R58 R59 10K 10K 10K 10K 10K 10K VREG_CHIP0 J4-2 J4-3 J4-4 J4-5 J4-6 0r R61 0r R62 0r R63 0r R64 0r R65 0r VT1_CHIP0 VT2_CHIP0 VT3_CHIP0 VT4_CHIP0 VT5_CHIP0 VT6_CHIP0 10K 10K T6 10K T5 10K T4 10K T3 10K T2 T1 J4-7 R60 C35 C36 C37 C38 C39 C40 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 09706-008 J4-8 Figure 8. EVAL-AD7280AEDZ Schematic—Page 3 Rev. 0 | Page 16 of 24 Evaluation Board User Guide J1-A32 J1-B32 F1 EMC_FILTER LK7 J1-C32 1 A J6-1 IN OUT GND B L1 3 +5V + 2 +5V AVDD-J1 UG-252 C42 C41 10uF 22uF J6-2 ADG3301/8 & ADG779 Decoupling J1-A8 J1-B8 F2 EMC_FILTER LK8 J1-C8 1 A J6-3 IN OUT GND +3.3V + 2 B L2 3 C44 C43 10uF 22uF ADG3301/8 & ADG779 Decoupling 0r R66 0r R67 +3.3V/EXT_DSP N/L F3 EMC_FILTER Ext_DSP_Voltage 1 J6-4 IN OUT L3 3 GND EXT_DSP + 2 C45 10uF C46 22uF ADG3301/8 & ADG779 Decoupling J1-A21 J1-A22 J1-A23 J1-A24 J1-A25 J1-A26 J1-A29 J1-B21 J1-B22 J1-B23 J1-B24 J1-B25 J1-B26 J1-B27 J1-B28 J1-B29 J1-B30 J1-C21 J1-C22 J1-C23 J1-C24 J1-C25 J1-C26 J1-C29 J1-A4 J1-B4 J1-C4 J1-A12 J1-B12 J1-C12 J1-A16 J1-B16 J1-C16 J1-A20 J1-B20 J1-C20 09706-009 +VARD +3.3V Figure 9. EVAL-AD7280EDZ Schematic—Page 4 Rev. 0 | Page 17 of 24 PD CNVST SDO SDI SCLK CS J13 J12 J11 J10 J9 J8 Figure 10. EVAL-AD7280EDZ Schematic—Page 5 Rev. 0 | Page 18 of 24 J1-A3 J1-B1 J14-4 J14-5 0r 0r 0r 4 NC7S04 U3 SPORT1 Off-Board Header J1-A2 J14-3 J14-6 J1-A1 +3.3V J7-8 J7-7 2 J7-6 R87 J7-5 J7-4 J7-3 R68 J7-2 R69 J14-2 J14-1 J1-A15 J1-B19 J1-C17 J1-A17 J1-C5 J1-A5 J1-C7 J1-A7 J1-C6 J1-A6 B A LK6 B A LK5 B A LK4 B A LK3 B A LK2 B A 1k R70 ALERT SDO PD D1 NC7SZ125 4 U10 CNVST NC7SZ125 4 U9 SDI SCLK CS C60 0.1uF C61 0.1uF +3.3V/EXT_DSP 0.1uF C47 C62 0.1uF 10 Y5 EN A8 A7 GND Y8 Y7 Y6 Y4 A5 A6 A4 Y3 Y2 A2 A3 Y1 VCCY A1 VCCA ADG3308 U4 3 2 GND A 4 5 +5V 11 12 13 14 15 16 17 18 19 20 0.1uF C51 C48 +5V +5V 0.1uF U11 Bypass Capacitor C63 0.1uF EN Y U6 ADG3301 1 6 VCCA VCCY U3, U9 & U10 Bypass Capacitors 1 2 1 2 9 8 7 6 5 4 3 2 0.1uF 1 C50 Short distance between ADG3308/1 and ADuM LK1 0r R71 J7-1 0r R72 C49 0.1uF 1 2 U11 4 NC7SZ125 +5V 2 U7 ADG849 6 S2 IN 5 D VDD 4 3 S1 GND 1 +5V +5V 0.1uF 10uF 1 8 7 6 5 4 3 2 VOC VIC GND1 RCOUT GNDISO VSEL VID VOB VIB VOD VOA VISO GNDISO VIA VDD1 ADUM5401 GND1 U5 9 10 11 12 13 14 15 16 0.1uF C54 10uF C55 C56 C57 0.1uF ADG_OUT_PD 0.1uF 1 2 3 4 VOB VIA VOA U8 ADUM1201 VDD2 VIB VDD1 GND2 GND1 8 7 6 5 C59 0.1uF C58 0.1uF 0.1uF caps within 20mm of supply & gnd pins ADG_OUT_CS ADG_OUT_SCLK ADG_OUT_SDI ADG_IN_SDO ADG_OUT_CNVST ADG_IN_ALERT C53 C52 10uF caps can be further away. 10K R123 ADG_OUT_CS ADG_OUT_SCLK ADG_OUT_SDI ADG_IN_SDO ADG_IN_ALERT ADG_OUT_CNVST ADG_OUT_PD 0r SDI2 SDO2 SCLK2 0r R86 DGND DGND2 DGND4 DGND1 DGND3 N/L PD2 CNVST2 ALERT2 AGND AGND2 AGND4 AGND1 AGND3 Options to bypass Isocouplers N/L N/L N/L N/L R82 R83 R84 R85 0r 0r 0r 0r 0r N/L 0r N/L 0r N/L R79 R80 R81 R78 CS2 0.1uF caps < 20mm of both supply & gnd pins N/L 10K R109 Isocouplers 10K R110 Level Translator 3.3V/Ext DSP to 5V +3.3V/EXT_DSP N/L PD CONVST ALERT SDO SDI SCLK CS VDRIVE Interface to AD7280 09706-010 Option A allows SMA connectors or 2x4 DIL header Option B allows connection to ADI CED board UG-252 Evaluation Board User Guide UG-252 09706-011 Evaluation Board User Guide 09706-012 Figure 11. Silkscreen-Top Image Figure 12. Layer 1 Rev. 0 | Page 19 of 24 Evaluation Board User Guide 09706-013 UG-252 09706-014 Figure 13. Layer 2 Figure 14. Layer 3 Rev. 0 | Page 20 of 24 UG-252 09706-015 Evaluation Board User Guide Figure 15. Layer 4 Rev. 0 | Page 21 of 24 UG-252 Evaluation Board User Guide BILL OF MATERIALS Table 10. Reference Designator U1, U2 U3 U4 U5 U6 U7 U8 U9, U10, U11 C1 to C12, C14, C16, C18 to C20, C22, C24, C26 to C40, C64 to 65, C80 to 93 C13, C21, C52, C55 Stock Code 1 AD7280AWBSTZ FEC 101-4133 ADG3308BRUZ ADuM5401CRWZ ADG3301BKSZ ADG849YKSZ ADuM1201WTRZ FEC 101-3811 FEC 8820023 C15, C17, C23, C25 FEC 165-0837 C41, C43, C45 C42, C44, C46 FEC 197-130 Digi-Key 490-1719-1-ND C47 to C49, C50, C51, C53, C54, C56 to C59, C60 to C63 C66 to C79 FEC 432210 1 2 12 3 1 1 1 3 1 6 1 2 2 6 8 Part Description 12-Bit ADC NC7S04 ADG3308 ADuM5401 ADG3301 ADG849 ADuM1201 NC7SZ125 0.1 μF Ceramic Capacitor, 50 V, SMD0603 10 μF Ceramic Capacitor, 35 V, SMD1812 10 μF Ceramic Capacitor, 16 V, SMD1210 10 μF Tantalum Capacitor, 10 V 22 μF Tantalum Capacitor, 6.3 V, SMD0805 0.1 μF Ceramic Capacitor, 16 V, SMD0603 22 pF Ceramic Capacitor, 50 V SMD0603 Red SMD 0805 Chip LED SMBJ30, TVS, 30 V, 600 W Zener Diode, 15 V, 0.5 W Surface-Mount EMC Filters 96-Way Connector 7-Pin Terminal Block 6-Pin Terminal Block 8-Way Connector 3-Pin Terminal Block Gold 50 SMA Jack 6-Way Connector 12-Way Connector 4-Way Connector Ferrite Beads 1-Way Jumper (1 × 2) D1 D18, D19 D20 to D31 F1 to F3 J1 J2 J3 J4, J5, J7 J6 J8 to J13 J14 J15 to J16 J17 to J18 L1 to L6 LK1 to LK8 12 42 BSS138 10 kΩ SMD0603 Resistor 13 24 6 2 9 17 3 2 1 12 67 0 Ω SMD0603 Resistor 68 Ω SMD2512 Resistor 10 kΩ SMD0603 Resistor 0 Ω SMD1206 Resistor 0 Ω SMD1206 Resistor 0 Ω SMD0603 Resistor 1 kΩ SMD0603 Resistor 1 kΩ SMD0603 Resistor 100 kΩ SMD0603 Resistor 10 kΩ SMD0603 Thermistor Test Points Q1 to Q12 R1 to R14, R2 to R47, R54 to R59, R88, R90 to R103, R108, R123 R16, R111 to R122 R18 to R41 R15, R17, R89, R90, R109, R110 R66, R78 R67, R79 to R86 R48 to R53, R60 to R65, R68, R69, R71, R72, R87 R70, R104, R105 R106, R107 R108 T1 to T12 FEC 105-8373 FEC 955-1050 FEC 143-1282 FEC 952-8202 FEC 1096832 FEC 388-2615 (x2) and FEC 388-2627 FEC 388-2627 (x2) FEC 1022233 [Do not insert] FEC 151-790 FEC 1169631 [Do not insert] FEC 1022255 [Do not insert] FEC 1022238 [Do not insert] FEC 1022251 [Do not insert] FEC 952-6900 FEC 1022244 (36-pin strip) and FEC 150411 FEC 984-5330 FEC 933-0399 Qty 2 1 1 1 1 1 1 3 50 4 4 3 3 15 14 1 FEC = Farnell. Rev. 0 | Page 22 of 24 FEC 1463373 FEC 498-543 FEC 933-1662 [Do not insert] FEC 128-3154 FEC 933-0399 [Do not insert] FEC 933-6974 FEC 933-6974 [Do not insert] FEC 933-1662 FEC 933-0380 FEC 933-0380 [Do not insert] FEC 933-0402 FEC 118-7088 FEC 873-1144 (pack) Evaluation Board User Guide UG-252 NOTES Rev. 0 | Page 23 of 24 UG-252 Evaluation Board User Guide 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. ©2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG09706-0-4/11(0) Rev. 0 | Page 24 of 24