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EVAL-AD7986FMCZ

EVAL-AD7986FMCZ

  • 厂商:

    AD(亚德诺)

  • 封装:

    -

  • 描述:

    AD7986 PulSAR® 18 Bit 2M Samples per Second Analog to Digital Converter (ADC) Evaluation Board

  • 数据手册
  • 价格&库存
EVAL-AD7986FMCZ 数据手册
EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/ EVAL-AD7986FMCZ User Guide UG-727 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 AD7944/AD7985/AD7986 14-/16-/18-Bit, PulSAR ADCs FEATURES GENERAL DESCRIPTION Full featured evaluation board for the AD7944/AD7985/AD7986 Versatile analog signal conditioning circuitry On-board reference, reference buffers, and ADC drivers System demonstration board compatible (EVAL-SDP-CH1Z) PC software for control and data analysis of time and frequency domain The EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/ EVAL-AD7986FMCZ are evaluation boards designed to demonstrate the low power performance of the AD7944/ AD7985/AD7986 14-/16-/18-bit, PulSAR® analog-to-digital converters (ADCs) and to provide an easy to understand interface for a variety of system applications. Full descriptions of the AD7944, AD7985, and AD7986 are available in the respective product data sheets, which should be consulted in conjunction with this user guide when using these evaluation boards. EVALUATION KIT CONTENTS EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ evaluation board The user PC software controls the evaluation board over the USB cable through the Analog Devices, Inc., system demonstration platform (SDP) board, the EVAL-SDP-CH1Z. ADDITIONAL EQUIPMENT AND SOFTWARE System demonstration platform (EVAL-SDP-CH1Z) Precision source World-compatible, 12 V dc supply adapter (included with EVAL-SDP-CH1Z) Power supply, +7.5 V/−3.0 V (optional) USB cable SMA cable On-board components include the following:    ONLINE RESOURCES  Documents Needed AD7944, AD7985, and AD7986 data sheet EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/ EVAL-AD7986FMCZ user guide Required Software AD7944/AD7985/AD7986 evaluation software Design and Integration Files Schematics, layout files, bill of materials The ADR3412/ADR4525/ADR4550 high precision, buffered band gap, 1.2 V/2.048 V/5.0 V reference options The AD8031 reference buffer The ADA4899-1/ADA4897-1/AD8021 signal conditioning circuit with three op amps and an option to use a differential amplifier (AD8139) The ADP7118, ADM7160, ADP2370, and ADP7182 regulators to derive necessary voltage levels on board The EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/ EVAL-AD7986FMCZ evaluation boards interface to the EVAL-SDP-CH1Z SDP board via a 160-pin FMC connector. SMA connectors, JP1/JP4 and JP2/JP5, are provided for the low noise analog signal source. TYPICAL EVALUATION SETUP TO 12V WALL WART SIGNAL SOURCE SMA CONNECTOR PC 12476-001 USB Figure 1. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 31 UG-727 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Basic Hardware Setup ...................................................................7 Evaluation Kit Contents ................................................................... 1 Evaluation Board Software ...............................................................8 Additional Equipment and Software ............................................. 1 Software Installation .....................................................................8 Online Resources .............................................................................. 1 Launching the Software ............................................................. 10 General Description ......................................................................... 1 Software Operation .................................................................... 11 Typical Evaluation Setup ................................................................. 1 WaveForm Capture .................................................................... 13 Revision History ............................................................................... 2 DC Testing—Histogram ............................................................ 14 Functional Block Diagram .............................................................. 3 AC Testing—Histogram ............................................................ 14 Evaluation Board Hardware ............................................................ 4 AC Testing—FFT Capture ........................................................ 15 Device Description ....................................................................... 4 Summary Tab .............................................................................. 16 Hardware Link Options ............................................................... 4 Troubleshooting .............................................................................. 17 Power Supplies .............................................................................. 4 Software ....................................................................................... 17 Serial Interface .............................................................................. 6 Hardware ..................................................................................... 17 Analog Inputs ................................................................................ 6 Evaluation Board Schematics and Artwork ................................ 18 Reference Options ........................................................................ 6 Bill of Materials ............................................................................... 25 Layout Guidelines ......................................................................... 7 REVISION HISTORY 7/15—Revision 0: Initial Version Rev. 0 | Page 2 of 31 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide UG-727 FUNCTIONAL BLOCK DIAGRAM +12V WALL WART ADP7118 +5V ADP7118 +12V ADP2370 +12V +7.5V +7.5V USB PORT –VS = –3V +7.5V VCM +5V AD8031 ADM7160 +5V ADR4550 +5V AD8031 POWER SUPPLY CIRCUITRY +2.5V –VS +7.5V REFIN VIN+ REF AVDD DVDD VIO TURBO ADA4899-1 ADSP-BF527 –VS IN+ SDI AD7944/AD7985/AD7986 +7.5V SCK SPARTAN-6 FPGA XC6SLX25 LVCMOS INTERFACE CNV IN– SDO ADA4899-1 GND –VS EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ EVAL-SDP-CH1Z 160-PIN 10mm VITA 57 CONNECTOR Figure 2. Rev. 0 | Page 3 of 31 12476-002 VIN– UG-727 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide EVALUATION BOARD HARDWARE DEVICE DESCRIPTION POWER SUPPLIES The AD7944 is a 14-bit, 2.5 MSPS successive approximation (SAR) ADC. The AD7985 is a 16-bit, 2.5 MSPS SAR ADC. The AD7986 is an 18-bit, 2 MSPS SAR ADC. The power (12 V) for the EVAL-AD7944FMCZ/EVALAD7985FMCZ/EVAL-AD7986FMCZ evaluation boards comes through a 160-pin FMC connector, J7, from the EVAL-SDPCH1Z. The user also has the option of using an external 12 V supply to power the evaluation board. On-board regulators generate the required levels from the applied 12 V rail. The ADP7118 (U18) supplies 7.5 V for the +VS pin of the ADC driver amplifiers (ADA4899-1, ADA4897-1, or AD8021), the external reference ADR4550 (U5), the ADR4525 (U8), and the ADR3412. Another ADP7118 (U10) supplies 5 V for BVDD (U1), the ADP2370 (U2), and the ADM7160 (U3 and U12). The ADP2370 (U2), in turn, directly generates −3.0 V or connects to the ADP7182 to generate −2.5 V for the −VS pin of the amplifier. The ADM7160 (U3 and U12) provides 2.5 V for DVDD and VIO (U1). The user also can use external bench top supplies to power the on-board amplifiers. The 3.3 V supply for the EEPROM (U7) comes from the EVAL-SDP-CH1Z through a 160-pin FMC connector, J7. Each supply is decoupled where it enters the board and again at each device. A single ground plane is used on this board to minimize the effect of high frequency noise interference. These ADCs are low power and high speed and include an internal conversion clock, an internal reference (and buffer), error correction circuits, and a versatile serial interface port. On the rising edge of CNV, each ADC samples an analog input, IN+, between 0 V and REF with respect to the ground sense, IN−. The ADCs feature a very high sampling rate turbo mode (TURBO is high) and a reduced power normal mode (TURBO is low) for low power applications where the power is scaled with the throughput. Full descriptions of the AD7944, AD7985, and AD7986 are available in the respective product data sheets, which should be consulted in conjunction with this user guide when using the evaluation boards. Full details on the EVAL-SDP-CH1Z are available at the SDP board product page. HARDWARE LINK OPTIONS The default link settings and the functions of the link options are shown in Table 1. Table 1. Pin Jumper Descriptions Link JP1, JP2 Default B to center JP3, JP4 B to center JP5 JP6 A to center B to center JP7 ADC specific JP8 JP9 JP10 B to center B to center B to center JP11 B to center JP12 LK1 LK2 LK3 LK4 LK5 LK6 LK7 LK8 LK9, LK11, LK12, LK13 LK10 LK16 B to center B REFIN to GND Not inserted B B B A A to B B to center A B Purpose Connects analog inputs VIN+ and VIN− to the inputs of the ADC driver ADA4899-1, ADA4897-1, or AD8021. The A to center position sets the fully differential path through the AD8139. Connects the outputs from the ADA4899-1 to the inputs of the ADC. The A to center position sets the fully differential path. Connects the VCM output from the ADR4550 to the VCM buffer AD8031. Connects 2.5 V to the ADC AVDD (analog core) supply. To prevent permanent damage to the ADC, do not connect this supply to supplies >2.5 V. Single or differential ADC input selection. The AD7986 default position is B to center. The AD7944 and AD7985 default position is A to center. Connects 7.5 V to amplifier +VS. Connects −3.0 V to amplifier −VS. Connects 5 V to ADC BVDD. For an external reference, the best performance is obtained when the reference source that is connected to the REF pins and BVDD are the same. Used in conjunction with LK3. Connects 2.5 V to ADC DVDD (digital core) supply. To prevent permanent damage to the ADC, do not connect this supply to supplies >2.5 V. Connects 2.5 V to the ADC digital input/output supply. Option to use external 12 V power supply or +12V_FMC power from the EVAL-SDP-CH1Z. Selects the internal reference and/or the reference buffer. Used in conjunction with LK10 and LK3. Option to connect REF with BVDD. Connects to the 7.5 V supply coming from the ADP7118. Connects to the −3.0 V supply coming from the ADP2370. Connects the VCM to VCM buffer AD8031. Connects the +5 V output from the ADR4550 to generate the REF buffer AD8031. Connects the SDO pin of the ADC to the level shifter pin. Connect the TURBO, SDI, CNV, and SCK pins of the ADC to level shifter pins. The A to center position bypasses the level shifter. To prevent different voltage level damage to the ADC, the B to center position is recommended. Selection of either the internal reference of the ADC or an external reference. Connects −NEG with the −3.0 V supply coming from the ADP2370. The A to center position connects with ADP7182. Rev. 0 | Page 4 of 31 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide UG-727 Table 2. On-Board Connectors Connector J1, J2, J4, J5 J3 J6 J7 J8, J9 J10 Function SMA analog input. Connects the low noise analog signal source to the inputs of the ADC driver ADA4899-1, ADA4897-1, AD8021, or AD8139. 3-pin terminal. This option is for using external bench top supplies. Apply external +Vs, −Vs, and GND to power amplifiers on the EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ evaluation board. 6-pin (2 × 3) socket. This option is for interfacing with an external ADC driver board. 160-pin FMC 10 mm male VITA 57 connector. This connector mates with the EVAL-SDP-CH1Z board. 7-pin (1 × 7) header connector. This option is for using an external ADC driver board. 6-pin (1 × 6) header connector. This option is for using an external serial interface to control the ADC. Table 3. On-Board Power Supplies Description Power Supply +VS Voltage Range (V) +5 to +7.5 −VS −2 to −5 |+VS to −VS| AVDD DVDD2, VIO 12 5 2.5 1 2 Purpose The two ADP7118 devices (U10, U18) generate the necessary 5 V and 7.5 V supplies, respectively, from the 12 V supply coming from the EVAL-SDP-CH1Z, or from external power supply. The 7.5 V supply is recommended for the on-board amplifier +VS. The 5 V supply is provided to AVDD (U1), the ADP2370 (U2), the ADR4525/ADR4550/ADR3412 (U5, U8, and U13), and the ADM7160 (U3 and U12). The user also has the option to use an external bench top supply for +VS through J3. The ADP2370 generates −3.0 V or connects to the ADP7182 to generate −2.5 V for the −VS pin of the amplifier. The user also has the option to use an external bench top supply for −VS through J3. Maximum range of supply for correct operation.1 Analog supply rail (U1).2 ADC supply rails.2 Dictated by ADA4899-1 supply operation. Refer to the AD7944, AD7985, and AD7986 data sheets. Rev. 0 | Page 5 of 31 UG-727 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide SERIAL INTERFACE ANALOG INPUTS The EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVALAD7986FMCZ evaluation boards use the serial interface connection to the EVAL-SDP-CH1Z. The EVAL-AD7944FMCZ/ EVAL-AD7985FMCZ/EVAL-AD7986FMCZ have two different data reading options: read during conversion and read during acquisition, both of which can operate in 3-wire and 4-wire serial interface modes. When using the serial interface, the voltage level shifter option and the external compatible serial interface options are supported. The serial interface requires five pins (SDI, SCK, SDO, TURBO, and CNV) connected between each ADC and the digital host. The analog inputs applied to the EVAL-AD7944FMCZ/EVALAD7985FMCZ/EVAL-AD7986FMCZ evaluation boards are the J1 and J2 SMA (push on) connectors. These inputs are buffered with dedicated, discrete driver amplifier circuitry (U15 and U16 or U14), as shown in Figure 1. The EVAL-SDP-CH1Z board features include the following: • • • • • • • • • XILINX Spartan®-6 FPGA DDR2 • Micron MT47H32M16Hr-25E:G 8 Mb × 16 bits × 4 Banks(512 Mb/64 Mb) SRAM • ISSI IS61WV25616BLL-10BLI 256 kB × 16 bits (4 Mb/512 kB) 1 × 160-pin FMC-LPC connector (refer to the VITA 57 specification) • Samtec ASP-134603-01 • Up to 1080 Mbps LVDS • Single-ended LVCMOS • Power Analog Devices ADSP-BF527 Blackfin® processor • Core performance up to 600 MHz • 208-ball CSP-BGA package • 24 MHz CLKIN oscillator 32 Mb flash memory • Numonyx M29W320EB or Numonyx M25P32 SDRAM memory • Micron MT48LC16M16A2P-6A 16 Mb × 16 bits (256 Mb/32 MB) 2 × 120-pin small foot print connectors • Hirose FX8-120P-SV1(91), 120-pin header Blackfin processor peripherals exposed • SPI • SPORT • TWI/I2C • GPIO • PPI • Asynchronous parallel The circuit allows different configurations, input range scaling, filtering, the addition of a dc component, the use of a different op amp, and a differential amplifier and supplies. The analog input amplifiers are set as unity-gain buffers at the factory. The positive rails of the driver amplifiers (U14, U15, and U16) are driven from 7.5 V (from the ADP7118, U18), and the negative rails are driven from −3.0 V. The positive rails of the other reference buffers (U4 and U11) are driven from 7.5 V, and the negative rails are grounded; these rails can be changed as required. The range of possible supplies is listed in Table 3. The default configuration sets both U15 and U16 at midscale generated from a buffered reference voltage (VCM) of the ADR4550 (U5). The evaluation board is factory configured to provide either a single-ended path or a fully differential path, as described in Table 1. Because the AD7986 is differential, both inputs and amplifier circuits are used to buffer the IN+ and IN− inputs of the ADCs. For the AD7944 and the AD7985 evaluation boards, only the J2, U15, and associated circuitry are used in the path. For dynamic performance, an FFT test can be performed by applying a very low distortion source. For low frequency testing, use the audio precision source. Set the outputs for balanced and floating. Different sources can be used, though most are singleended and use a fixed output resistance. Because the evaluation board uses the amplifiers in unity gain, the noninverting input has a common-mode input with a series 590 Ω resistor, which must be taken into account when directly connecting a source (voltage divider). REFERENCE OPTIONS The AD7944, AD7985, and AD7986 each have an internal 4.096 V reference together with an internal buffer that can be used with an external reference; the devices can also use an external 5.0 V or 2.048 V reference directly. The EVALAD7944FMCZ/ EVAL-AD7985FMCZ/EVAL-AD7986FMCZ evaluation boards can be configured to use any of these references. The jumpers and linkers used to set the reference are shown in Table 1. External Reference: Default Configuration The EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVALAD7986FMCZ evaluation boards include an external 5 V and 2.048 V reference. This reference can drive the ADCs and the REF pin directly, or it can be buffered with the AD8031; the factory default setting is 5 V and buffered with the AD8031. The best attainable signal-to-noise ratio (SNR) is achieved by using the maximum reference voltage of 5 V. Refer to the AD7944, AD7985, and AD7986 data sheets for more details. Rev. 0 | Page 6 of 31 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide UG-727 Internal 4.096 V Reference BASIC HARDWARE SETUP The AD7944/AD7985/AD7986 ADCs have an internal 4.096 V precision reference that can be used on most applications. Connecting PDREF to GND enables the internal reference. When the internal reference is enabled, a 4.096 V as well as a 1.2 V band gap are present on the ADC REF pin and test point. When using this method, R14 and R17 must be removed to achieve the best performance. External sources must not be connected to these test points because they are directly connected to the ADC pins. The EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVALAD7986FMCZ evaluation boards connect to the (EVAL-SDPCH1Z) system demonstration board. The EVAL-SDP-CH1Z board is the controller board, which is the communication link between the PC and the main evaluation board. Internal Reference Buffer The internal reference buffer is useful when using an external 1.2 V reference. When using the internal reference buffer, applying 1.2 V reference ADR3412 (U13) to REFIN, which is directly connected to the REFIN pin of the ADC, produces 4.096 V at the REF pin of the ADC. R14 and R17 must be removed to achieve the best performance. External sources must not be connected to these test points because they are directly connected to the ADC pins. Figure 1 shows a photograph of the connections between the EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVALAD7986FMCZ daughter board and the EVAL-SDP-CH1Z controller board. 1. 2. LAYOUT GUIDELINES When laying out the printed circuit board (PCB) for the ADC, follow these recommended guidelines to obtain the maximum performance from the converter. • • • • • • • Solder the ADC exposed paddle (Pin 21) directly to the PCB, and connect the paddle to the ground plane of the board using multiple vias. Decouple all the power supply pins (AVDD, BVDD, and VIO) and the REF pin with low ESR and low ESL ceramic capacitors, typically 10 µF and 100 nF, placed close to the DUT (U1) and connected using short, wide traces. This provides low impedance paths and reduces the effect of glitches on the power supply lines. The ADC voltage reference inputs (REF) have a dynamic input impedance and must be decoupled with minimal parasitic inductances, by placing the reference decoupling ceramic capacitor close to, ideally right up against, the REF and REFGND pins and connecting them with wide, low impedance traces. Separate analog and digital sections and keep power supply circuitry away from the ADC. Avoid running digital lines under the device as well as crossover of digital and analog signals, because these couple noise into the ADC. Do not run fast switching signals, such as CNV or clocks, near analog signal paths. Remove the ground and power plane beneath the input (including feedback) and output pins of the amplifiers (U14, U15, and U16), because they create an undesired capacitor. 3. 4. 5. Rev. 0 | Page 7 of 31 Install the EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/ EVAL-AD7986FMCZ software. Ensure that the EVALSDP-CH1Z board is disconnected from the USB port of the PC while installing the software. The PC must be restarted after the installation. Before connecting power, connect the 160-pin FMC connector, J7, of the evaluation board to the J4 connector on the EVAL-SDP-CH1Z board. Nylon screws are included in the EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVALAD7986FMCZ evaluation kit and can be used to ensure the that the evaluation board and the EVAL-SDP-CH1Z board are connected firmly together. Connect the 12 V power supply adapter included in the kit to the EVAL-SDP-CH1Z. Connect the EVAL-SDP-CH1Z board to the PC via the USB cable. Windows XP users may need to search for the EVAL-SDP-CH1Z drivers. Choose to automatically search for the drivers for the EVAL-SDP-CH1Z board if prompted by the operating system. Launch the EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/ EVAL-AD7986FMCZ software from the Analog Devices subfolder in the Programs menu. The full software installation procedure is described in the Evaluation Board Software section. UG-727 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide EVALUATION BOARD SOFTWARE SOFTWARE INSTALLATION The AD7944/AD7985/AD7986 evaluation software is available to download from the EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/ EVAL-AD7986FMCZ product pages. Double-click the setup.exe file to run the install. The default location for the software is C:\Program Files (x86)\Analog Devices\AD7944_85_86 Evaluation Software. Install the evaluation software before connecting the evaluation board and EVAL-SDP-CH1Z board to the USB port of the PC to ensure that the evaluation system is correctly recognized when connected to the PC.   12476-005 There are two parts of the software installation process: AD7944/AD7985/AD7986 evaluation software installation EVAL-SDP-CH1Z board driver installation Figure 5. Evaluation Software Installation—Choose Install Location Figure 3 to Figure 9 show the separate steps to install the AD7944/ AD7985/AD7986 evaluation software, and Figure 10 to Figure 15 show the separate steps to install the EVAL-SDP-CH1Z drivers. Proceed through all of the installation steps to install the software and drivers in the appropriate locations. 12476-006 Connect the EVAL-SDP-CH1Z board to the PC only after the software and drivers have been installed. 12476-003 Figure 6. Evaluation Software Installation—License Agreement 12476-007 Figure 3. User Account Control 12476-004 Figure 7. Evaluation Software Installation—Summary Figure 4. Evaluation Software Installation—Initializing Rev. 0 | Page 8 of 31 UG-727 Figure 8. Evaluation Software Installation—In Progress 12476-011 12476-008 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide Figure 9. Evaluation Software Installation—Complete 12476-012 12476-009 Figure 11. EVAL-SDP-CH1Z Drivers Setup—Choose Install Location 12476-013 Figure 12. EVAL-SDP-CH1Z Drivers Setup—Installing Drivers 12476-010 Figure 13. EVAL-SDP-CH1Z Drivers Setup—Windows Security Figure 10. EVAL-SDP-CH1Z Drivers Setup—Welcome Rev. 0 | Page 9 of 31 UG-727 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide LAUNCHING THE SOFTWARE Once the evaluation board and the EVAL-SDP-CH1Z board are correctly connected to your PC, the AD7944/AD7985/AD7986 evaluation software can be launched. 12476-014 1. From the Start menu, click Programs > Analog Devices > AD7944_85_86 Evaluation Software. The main window of the software appears (see Figure 19). a. If the evaluation system is not connected to the USB port via the EVAL-SDP-CH1Z when the software is launched, a connectivity error displays (see Figure 17). b. Connect the evaluation board to the USB port of the PC. c. Wait for a few seconds and then click Rescan (see Figure 18). 12476-015 Figure 14. EVAL-SDP-CH1Z Drivers Setup—Installation Complete After installation is complete, connect the EVAL-AD7944FMCZ, the EVAL-AD7985FMCZ, or the EVAL-AD7986FMCZ to the EVAL-SDP-CH1Z board, as described in the Evaluation Board Hardware section. 12476-018 Figure 15. Restart Required Figure 17. Connectivity Error Alert 1 12476-017 When you first plug in the EVAL-SDP-CH1Z board via the USB cable provided, allow the new Found Hardware Wizard to run. Once the drivers are installed, check that the board has connected correctly by looking at the Device Manager of the PC. The Device Manager can be accessed via My Computer > Manage > Device Manager from the list of System Tools. The EVAL-SDP-CH1Z board appears under ADI Development Tools, which indicates that the installation is complete. 12476-016 Figure 18. Connectivity Error Alert 2 Figure 16. Device Manager Rev. 0 | Page 10 of 31 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide UG-727 SOFTWARE OPERATION Interface Selection This section describes the full software operation and all the windows that appear. When the software is launched, the main software window opens, and the software searches for hardware connected to the PC. The user software window launches as shown in Figure 19. The labels listed in this section correspond to the numbered labels in Figure 19. The Interface Selection drop-down menu, Label 8 in Figure 19, provides options for using 3-wire or 4-wire mode, reading during or reading after conversion, and no busy signal mode. File Menu The File menu, Label 1 in Figure 19, has the following options: • • • • • Save Captured Data: saves data to a .CSV file Load Captured Data: loads data for analysis Take Screenshot: saves the current screen Print: prints the window to the default printer Exit: closes the application The options for using the external reference or internal reference are controlled by the Voltage Reference drop-down menu, Label 9 in Figure 19. The default value is set to 5 V (external reference and external buffer). The other voltage reference options are 4.096 V (external or internal reference) and 2.048 V (external reference). When using the external reference, it is recommended to use an on-board AD8031 as an external reference buffer. Turbo Mode Edit Menu The Edit menu, Label 2 in Figure 19, provides the Initialize to Default Values option, which resets the software to its initial state. Help Menu The Turbo Mode button, Label 10 in Figure 19, provides the options of Turbo On or Turbo Off (normal mode). Note that the throughput must be manually changed when changing modes. Throughput The Through Output field, Label 11 in Figure 19, controls the throughput. The default throughput (sampling frequency) is 2000 kSPS. The user can adjust the sampling frequency; however there are limitations around the sample frequency related to the SCLK frequency applied. The sample frequency must be at least 200 kSPS. The AD7985 is capable of operating a maximum sample frequency of 2500 kSPS in reading during conversion turbo mode. The Help menu, Label 3 in Figure 19, offers help from the • • • • Voltage Reference Analog Devices website User Guide Context Help About Eval Board Connected This indicator, Label 4 in Figure 19, shows that the evaluation board is connected. In Figure 19, the connected evaluation board is the EVAL-AD7985FMCZ. Samples If the user enters a value exceeding the maximum capacity of the device, the software indicates this, and the user must revert to the maximum sample frequency. Tabs There are four additional tabs available for displaying the data in different formats. From the Samples drop-down menu, Label 5 in Figure 19, select the number of samples to analyze when running the software; this number is limited to 1,048,576 samples. Single Capture and Continuous Capture Clicking Single Capture , Label 6 in Figure 19, performs a single capture, whereas clicking Continuous Capture, Label 7 in Figure 19, performs a continuous capture from the ADC. • • • • Waveform Histogram FFT Summary To exit the software, go to File > Exit. Rev. 0 | Page 11 of 31 UG-727 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide 2 3 5 6 7 4 8 9 10 11 12476-019 1 Figure 19. Evaluation Software Window Rev. 0 | Page 12 of 31 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide WAVEFORM CAPTURE Figure 20 shows the Waveform tab. A 20 kHz sine wave input signal was used along with an on-board 5 V external reference. UG-727 The Waveform Analysis boxes, Label 1 in Figure 20, show the amplitudes recorded from the captured signal in addition to the frequency of the signal tone. CONTROL CONTROL CONTROL CURSOR ZOOMING PANNING 12476-020 1 Figure 20. Waveform Capture Tab Rev. 0 | Page 13 of 31 UG-727 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide DC TESTING—HISTOGRAM AC TESTING—HISTOGRAM Figure 21 shows the Histogram tab. The histogram can be used to test the ADC for the code distribution for dc input, compute the mean and standard deviation or transition noise of the converter, and display the results. Raw data is captured and passed to the PC for statistical computations. The histogram can also be used to test the ADC for the code distribution for ac input, compute the mean and standard deviation or transition noise of the converter, and display the results. Raw data is captured and passed to the PC for statistical computations. To perform a histogram test, click the Histogram tab, then click Single Capture or Continuous Capture. A histogram test can be performed without an external source because the evaluation board has a buffered VREF/2 source at the ADC input. To test other dc values, apply a source to the J1 and J2 inputs. The signal may need to be filtered so that the dc source noise is compatible with that of the ADC. To perform a histogram test, click the Histogram tab, then click Single Capture or Continuous Capture. An ac histogram requires a quality signal source applied to the input J1/J2 connectors. Figure 21 shows the histogram for a 20 kHz sine wave applied to the ADC input and the results calculated. The Histogram Analysis boxes, Label 1 in Figure 21, show the various measured values for the data captured. 12476-021 1 Figure 21. Histogram Capture Tab Rev. 0 | Page 14 of 31 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide AC TESTING—FFT CAPTURE Figure 22 shows the FFT tab. This tests the traditional ac characteristics of the converter and displays a fast Fourier transform (FFT) of the results. As in the histogram test, raw data is captured and passed to the PC where the FFT is performed to display the signal-to-noise ratio (SNR), signal-to-noise-anddistortion ratio (SINAD), total harmonic distortion (THD), and spurious-free dynamic range (SFDR). To perform an ac test, apply a sinusoidal signal to the evaluation board at the SMA inputs, J1 and J2. A very low distortion, better than 130 dB input signal source (such as audio precision) is required to allow true evaluation of the device. One possibility UG-727 is to filter the input signal from the ac source. There is no suggested band-pass filter, but carefully consider the choices. Furthermore, if using a low frequency band-pass filter when the full-scale input range is more than a few volts peak-to-peak, it is recommended to use the on-board amplifiers to amplify the signal, thus preventing the filter from distorting the input signal. Figure 22 displays the results of the captured data. FFT Analysis shows the input signal information (Label 1), as well as the performance data, including SNR, dynamic range, THD, SINAD, and noise performance (Label 3). Show Harmonic Content displays the fundamental frequency and amplitude in addition to the second to fifth harmonics (Label 2). 1 3 12476-022 2 Figure 22. FFT Capture Tab Rev. 0 | Page 15 of 31 UG-727 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide SUMMARY TAB 12476-023 Figure 23 shows the Summary tab, which captures all the display information and provides it in one tab with a synopsis of the information, including key performance parameters such as SNR and THD. Figure 23. Summary Tab Rev. 0 | Page 16 of 31 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide UG-727 TROUBLESHOOTING This section provides recommendations on how to prevent and troubleshoot problems encountered with the software and the hardware. SOFTWARE HARDWARE If the software does not read any data back, take the following steps: • Follow these recommendations for the evaluation software: • • • • • • Always install the software prior to connecting the hardware to the PC. Always allow the install to fully complete (the software installation is a two part process: installing the ADC software and the SDP drivers). This may require a restart of the PC. When you first plug in the EVAL-SDP-CH1Z board via the USB cable provided, allow the new Found Hardware Wizard to run. Though this may take time, do this prior to starting the software. If the board does not appear to be functioning, ensure that the ADC evaluation board is connected to the EVAL-SDP-CH1Z board and that the SDP board is recognized in the Device Manager, as shown in Figure 16. If connected to a slower USB port where the EVAL-SDPCH1Z cannot read quickly, a timeout error may occur. In this case, it is advised not to read continuously or, alternatively, to lower the number of samples taken. Note that when reading continuously from the ADC, the recommended number of samples is up to 1,048,576. • • • • With the 12 V wall wart plugged in to the EVAL-SDP-CH1Z board, check that the voltage applied is within the ranges shown in Table 3. Using a digital multimeter (DMM), measure the voltage present at 12 V and the VADJ test points, which should read 12 V and 2.5 V, respectively. The +12V_FMC LED of the evaluation board and the LEDs of the EVAL-SDP-CH1Z board (FMC_PWR_GO, SYS_PWR, FPGA_DONE, BF_POWER, LED0, and LED2) should all be lit. Launch the software and read the data. If nothing happens, exit the software. Remove the 12 V wall wart and USB from the EVAL-SDPCH1Z board, and then reconnect them and relaunch the software. If an error occurs, check that the evaluation board and the EVAL-SDP-CH1Z board are connected together so that the EVAL-SDP-CH1Z is recognized in the Device Manager, as shown in Figure 16. Note that when working with the software in standalone/offline mode (no hardware connected), if you later choose to connect hardware, first close and then relaunch the software. Rev. 0 | Page 17 of 31 UG-727 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide EVALUATION BOARD SCHEMATICS AND ARTWORK +5V ADP7118ACPZN-5.0 +12V VIN VOUT 4 7 C34 4.7µF 6 +12V VIN 0r SENSE/ADJ 2 SS VOUT 4 PG_C2M 5 7 C69 4.7µF C29 DNP +7.5V 1 0r U18 C36 4.7µF EN EP(GND) GND 3 R7 +5V 1 U10 PG_C2M +7.5V ADP7118ACPZN-5.0 R63 6 SENSE/ADJ 5K R18 2 EN EP(GND) GND 3 SS 5 C70 4.7µF DNP C37 10K R19 VIN = +12V , VOUT= +7.5V, IOUT = UP TO 200mA VIN = +12V , VOUT= +5V, IOUT = UP TO 200mA C19 –3P0V 1 µF ADP2370ACPZ-5.0 +12V_EXT +12V R61 1R PGND 8 1 VIN 0r A 2 FSEL +12V C6 1µF B GND1 L6 1.0 µH LQH32CN1R0M33L R62 R5 3k3 U2 L2 2 22 µH LPS4414-223MLB 64.9K R11 1 SW 7 3 EN PG 6 4 SYNC FB 5 –3.0V 1PS79SB30 40V, 200mA +5V LK1 C66 4.7µF C4 4.7µF D1 +12V_FMC PADDLE 9 SYSTEM POWER SUPPLY OPTIONS 23.7K R6 12476-024 +12V_SYS GREEN C13 10µF VIN = +5V , VOUT= –3V, IOUT = UP TO 200mA Figure 24. Schematic—System Power Supply Options U3 LK4 +5V +7.5V 1 IN A 3 B AMP_PWR+ 1 JP8 C30 4.7 µF 0r NC 4 C14 4.7 µF 2 GND ADM7160AUJZ-2.5 C16 10 µF 2 R20 OUT 5 3 EN +5V AMP_PWR+_EXT U12 J3-1 SCREW J3-2 TERMINALS J3-3 1 C64 4.7 µF 3 2 0r NC 4 EN L1 1 2 600Z HZ0805E601R L0805 R4 OUT 5 IN C63 4.7 µF GND 1 L3 2 ADM7160AUJZ-2.5 2 LK5 –3.0V 3 AMP_PWR– 3 BVDD_EXT C18 10 µF 1 JP10 2 BVDD C33 10 µF C32 10 µF +5V OPAMP POWER SUPPLY OPTIONS ADC POWER SUPPLY OPTIONS Figure 25. Schematic—Op Amp and ADC Power Supply Options Rev. 0 | Page 18 of 31 1 JP12 2 1 3 DVDD 1 JP11 VIO 2V5_EXT 2 A B 3 3 AVDD 1 JP6 L4 2 2 1 C39 10 µF L5 2 C65 10 µF 12476-025 1 JP9 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide 5V_REF 2 +7.5V +VIN VOUT 6 GND 4 C20 0.1µF C27 0.1µF 0r 3 R21 C22 TBD DNP 0r C42 10µF VCM_EXTERNAL AMP_PWR+ U5 ADR4550BRZ R16 C21 2.2µF A R22 VOUT 2 2 AMP_PWR+ 7 AD8031ARZ + V+ OP C25 10µF U8 ADR4525BRZ +VIN 3 1K B LK7 2 1 JP5 U4 R39 V– – 6 R14 R12 1K REF REF 0r 4 U11 VCM 3 0r C43 0.1µF C40 0.1µF R15 6 0r C44 10µF UG-727 GND 4 C24 TBD DNP C23 2.2µF + 7 AD8031ARZ V+ OP 2 R24 R17 0r 2PT5V_REF – V– A VCM LK6 4 C11 10µF 0r B 6 C38 10µF C26 TBD DNP R25 TBD DNP R45 DNP AMP_PWR+ C75 0.1uF GND2 LK2 A 3 C60 10µF C35 0.1µF VIN EN VOUT_F VOUT_S GND_S GND_F R34 6 5 2 3 + 100r C61 0.1µF C62 10µF 7 AD8031ARZ V+ OP C15 10µF 2 – V– B R8 6 4 0r TBD DNP 1 R30 ADR3412ARJZ R67 0r C17 TBD DNP Figure 26. Schematic—External Reference Rev. 0 | Page 19 of 31 12476-026 4 0r 1PT2V_REFIN U19 U13 R3 +5V REFIN UG-727 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide AMP_PWR+ C58 tba ADA4899-1 U15 R57 R48 3 OP_AMP+ J6-1 0r VCM J6-2 820r 2 100pF C76 R41 J6-3 1 C73 6 DNP R35 0r 0r AMP_PWR+ R38 C54 0.1µF J6-6 – VOUT V– V– 5 4 FB 590 J6-4 C73 AND C74 ARE COMPENSATION CAPACITORS, GUARD RING AROUND SEE AD8021 FIGURE 62 7 V+ R10 VCM J6-5 8 D + R28 0r C55 DNP 590 C59 AMP_PWR– AMP_PWR- AMP_PWR+ C56 ADA4899-1 U16 R59 R58 0r 820r D 3 OP_AMP– OP_AMP+ R37 3 J2 2 100pF C71 VIN+ – V– J5 1 6 VOUT+ C74 R29 0r C53 DNP C49 1.5nF 3 DNP 0r C57 R52 1 JP3 R40 590 C52 0.1µF 2 VOUT V– 5 4 R27 VCM JP1 1 7 V+ + FB 590 AIN+ 8 IN+ 10r R60 0r 2 AMP_PWR– C47 DNP VOUT– DIFF_IN+ OP_AMP- 3 3 J1 1 JP4 AIN- JP2 1 IN– R53 10r J4 C67 2 2 C48 1.5nF DNP DIFF_INVIN– R42 C46 DNP DNP R49 200r R50 R51 0r 200r C41 DIFF_IN– AMP_PWR+ 0.1µF AD8139ARDZ U14 3 8 +IN V+ R13 OPTIONAL HEADER CONNECTOR VCM 590 VIN– J8-1 J9-1 J8-2 5 VOCM –OUT +OUT 4 –IN V– 2 R26 590 VOUT– C72 0.1µF R55 DNP C51 DNP 1 6 J9-2 C50 R23 R43 J9-3 J8-3 R54 0r 0.1µF 0r 200r R56 J9-4 R36 J8-4 C45 DNP VCM 0r R46 R44 DNP J9-5 AMP_PWR+ J8-5 GND3 AMP_PWR– DIFF_IN+ AMP_PWR– 200r C68 R47 DNP 0r DNP J9-6 J8-6 VOUT+ 12476-027 J9-7 J8-7 VIN+ Figure 27. Schematic—Analog Front End Rev. 0 | Page 20 of 31 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide C3 C5 0.1µF 0.1µF 0.1µF C2 UG-727 DVDD AVDD LK10 VIO VIO A B VIO DVDD 7 U1 3 PDREF IN– TURBO SDI AD7985 DGND REFIN IN– REF AGND SDO AGND 5 SCK BVDD REF REF REFGND REFGND 1 JP7 AVDD IN+ 8 11 16 6 IN+ CNV 15 TURBO 14 SDI 12 SCK 9 SDO 13 CNV 19 1 2 3 4 17 18 20 10 2 LK3 REFIN C10 C1 0.1µF 10µF C12 0.1µF C8 C9 10µF 0.1µF 12476-028 BVDD Figure 28. Schematic—AD7944/AD7985/AD7986 Decoupling PG_C2M 3P3VAUX 3P3VAUX R1 R2 DNP C7 U7 1 E0 2 E1 3 E2 GA1 GA0 I2C_SCL 6 7 R9 DNP 0.1µF 8 VCC SDA I2C_SDA 5 FPGA I2C Lines GA0 SCL WP +12V_FMC VSS 4 M24C02-WMN6TP J7-A ASP-134604-01 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 AK20 AK21 AJ24 AK25 AD21 AE21 AD27 AD28 AJ28 AJ29 GND DP0_C2M_P DP0_C2M_N GND GND DP0_M2C_P DP0_M2C_N GND GND LA06_P LA06_N GND GND LA10_P LA10_N GND GND LA14_P LA14_N GND GND LA18_P_CC LA18_N_CC GND GND LA27_P LA27_N GND GND SCL SDA GND GND GA0 12P0V GND 12P0V GND 3P3V GND J7-B ASP-134604-01 D1 D2 D3 D4 D5 D6 D7 D8 SDO_FMC D9 TURBO_FMC D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D20 D21 D22 D23 D24 D25 D26 D27 D28 3P3VAUX D29 D30 D31 D32 3P3VAUX D33 D34 D35 GA1 D36 D37 D38 D39 D40 PG_C2M AE23 AF23 AG22 AH22 AK23 AK24 AB24 AC25 AB27 AC27 AH26 AH27 AK29 AK30 PG_C2M GND GND GBTCLK0_M2C_P GBTCLK0_M2C_N GND GND LA01_P_CC LA01_N_CC GND LA05_P LA05_N GND LA09_P LA09_N GND LA13_P LA13_N GND LA17_P_CC LA17_N_CC GND LA23_P LA23_N GND LA26_P LA26_N GND TCK TDI TDO 3P3VAUX TMS TRST_L GA1 3P3V GND 3P3V GND 3P3V SCK_FMC CNV_FMC VADJ VADJ J7-C ASP-134604-01 G1 G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15 G16 G17 G18 G19 G20 G21 G22 G23 G24 G25 G26 G27 G28 G29 G30 G31 G32 G33 G34 G35 G36 G37 G38 G39 G40 AD23 AE24 AG20 AH20 AJ22 AJ23 AA20 AB20 AC22 AD22 AF26 AF27 AJ27 AK28 AC26 AD26 AE28 AF28 AD29 AE29 AC29 AC30 GND CLK1_M2C_P CLK1_M2C_N GND GND LA00_P_CC LA00_N_CC GND LA03_P LA03_N GND LA08_P LA08_N GND LA12_P LA12_N GND LA16_P LA16_N GND LA20_P LA20_N GND LA22_P LA22_N GND LA25_P LA25_N GND LA29_P LA29_N GND LA31_P LA31_N GND LA33_P LA33_N GND VADJ GND J7-D ASP-134604-01 H1 H2 H3 H4 H5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18 H19 H20 H21 H22 H23 H24 H25 H26 H27 H28 H29 H30 H31 H32 H33 H34 H35 H36 H37 H38 H39 H40 SDI_FMC VADJ VREF_A_M2C PRSNT_M2C_L BOARD PRESENT PIN GND AF22 CLK0_M2C_P AG23 CLK0_M2C_N GND AF20 LA02_P AF21 LA02_N GND AH21 LA04_P AJ21 LA04_N GND AG25 LA07_P AH25 LA07_N GND AE25 LA11_P AF25 LA11_N GND AC24 LA15_P AD24 LA15_N GND AJ26 LA19_P AK26 LA19_N GND AG27 LA21_P AG28 LA21_N GND AG30 LA24_P AH30 LA24_N GND AE30 LA28_P AF30 LA28_N GND AB29 LA30_P AB30 LA30_N GND Y30 LA32_P AA30 LA32_N GND VADJ VIO LK11 15 SCK_FMC 14 CNV_FMC 13 SDI_FMC 12 TURBO_FMC 11 10 FXL4TD245BQX R31 0.1µF 1 16 VCCB VCCA T/R1 B0 T/R0 A0 B1 A1 B2 A2 B3 A3 T/R2 T/R3 OE GND EP 8 17 10 1 VCCA 0r R33 2 SDO VCCB A0 B0 9 SDO_T 0r R32 U6 2 3 3 4 B1 0r R64 LK9 SCK 4 T/R0 T/R1 LK8 R66 10k TURBO_T 7 U17 4 2 GND 5 OE SDO 7 R65 A 0r J10-5 J10-6 SDI_FMC SDI_T CNV_FMC CNV_FMC CNV_T SCK_FMC B 6 SDI_T 6 A TURBO_FMC TURBO_T SDI_FMC B 8 FXL2TD245 CNV_T 5 9 A1 SCK_T A B LK13 CNV TURBO_FMC B LK12 SDI A SCK_FMC SCK_T A SDO_FMC B SDO_T default SDO connect SDO_FMC 12476-029 U9 0r C31 0.1µF J10-4 VADJ TURBO C28 J10-3 J10-1 VADJ VIO J10-2 EEPROM required in VITA standard I2C line pull-up resistors on FPGA board PG_C2M NC7S04 Figure 29. Schematic—FMC-LPC Male Connector Rev. 0 | Page 21 of 31 12476-030 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide Figure 30. Evaluation Board Silkscreen—Top Assembly xxxxx-xxx UG-727 Figure 31. Evaluation Board Silkscreen—Bottom Assembly Rev. 0 | Page 22 of 31 UG-727 12476-032 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide 12476-033 Figure 32. Evaluation Board—Top Layer Figure 33. Evaluation Board Layer 2—Ground Rev. 0 | Page 23 of 31 12476-034 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide Figure 34. Evaluation Board Layer 3—Power 12476-035 UG-727 Figure 35. Evaluation Board Bottom Layer Rev. 0 | Page 24 of 31 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide UG-727 BILL OF MATERIALS Table 4. Analog Bill of Materials for EVAL-AD7986FMCZ Reference Designator +5V, +7V5, +12V, +12V_EXT, −3P0V, 1PT2V_REFIN, 2PT5V_REF, 2V5_EXT, 3P3VAUX, 5V_REF, BVDD_EXT, GND1 to GND3 PG_C2M, VADJ, VCM, VCM_EXTERNAL +12V_SYS C1, C8, C11, C15, C25, C32, C33, C38, C39, C42, C44, C60, C62, C65 C2, C3, C5, C7, C9, C12, C20, C27, C28, C31, C35, C40, C43, C52, C54, C56 to C59, C61, C75 C4, C66, C77, C78 C6, C19 C10, C17, C22, C24, C26 C13, C16, C18 C14, C30, C34, C36, C63, C64, C69, C70 C21, C23 C29, C37, C41, C45 to C47, C50, C51, C53, C55, C67, C68, C72 to C74, C79 C48, C49 C71, C76 D1 J1, J2 J3 J4, J5 J6 J7 J8 J9 J10 JP1 to JP12, LK6 to LK9, LK11 to LK14, R1, R3, R4, R10 L1, L3 to L5 L2 L6 LK1, LK2, LK4, LK5, LK10 LK3 R2, R9, R13, R26, R44, R47, R49, R55, R70, R72 R5 R6 R7, R8, R14, R16, R17, R39, R45, R63 R11 R12, R22 Part Description Test point Part Number 20-313137 Stock Code Not Inserted Test point 20-313137 Do Not Place LED, 0603, green Capacitor SML-LX0603SUGW-TR 0805ZC106KAT2A Digikey 67-1693-1-ND FEC 2094042 Capacitor, 0603 MCCA000255 FEC 1759122 Capacitor Capacitor Capacitor Capacitor Capacitor GRM188R60J475KE19D GRM188R61A105KA61D TBA GRM219R61C106KA73D EMK212B7475KG-T FEC 1735527 FEC 1828798 Do Not Place FEC 1845747 FEC 2112841 Capacitor Capacitor, 0603 EMK212B7225KG-T Not Applicable FEC 1683654 Do Not Place Capacitor, 0603 Capacitor, 0603 Diode, Schottky, 40 V, 0.2 A, 1PS79SB30 SMA Connector, Power 3 SMA Header, 06, SKT, RA ASP-134604-01 Connector, 7 position, header Connector, 7 position, header Connector, 6 position, header 3 W, solder link, 0603 MCCA000201 C1608C0G1H101J080AA 1PS79SB30 5-1814400-1 CTB5000/3 142-0701-851 TBA ASP-134604-01 SSW-107-01-T-S TLW-107-05-G-S TLW-106-05-G-S MC 0.063W 0603 0R FEC 1907308 FEC 1907297 FEC 8734097 Not Inserted FEC 151790 Digikey J658-ND Not Inserted Samtec ASP-134604-01 FEC 1803478 FEC 1668499 Not Inserted FEC 9331662 Bead, 0805 Inductor, 22 µH, LPS4414-223MLB Inductor Jumper, 2 Jumper Resistor HZ0805E601R LPS4414-223MLB LQH32CN1R0M33L M20-9983646 & M7566-05 M20-9990246 Not Applicable DigiKey 240-1018-1-ND FEC 2287727 FEC 9522174 FEC 1022244 & 150-411 (36 Pin Strip) Do Not Insert Do Not Place Resistor Resistor Resistor MC0063W060313K3 MC0063W0603123K7 MC 0.1W 0805 0R FEC 9331026 FEC 1170924 FEC 9333681 Resistor Resistor MC0063W0603164K9 MC 0.063W 0603 1% 1K FEC 1170968 FEC 9330380 Rev. 0 | Page 25 of 31 UG-727 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide Reference Designator R15, R20, R21, R23, R24, R27 to R29, R31 to R33, R35, R36, R43, R46, R48, R50, R59, R60, R64, R65, R67 R18 R19 R25, R30 R34 R37, R38, R40, R41 R42, R51, R54, R56 R52, R53 R57, R58 R61 R62 R66 R68 R69 R71 U1 U2 U3, U12 U4, U11, U19 U5 U6 U7 U8 U9 U10, U18 U13 U14 U15, U16 U17 U20 X1, X2 Part Description Resistor, 0 Ω Part Number MC 0.063W 0603 0R Stock Code FEC 9331662 Resistor Resistor Resistor Resistor Resistor Resistor Resistor 82 Ω, 0603, 1%, 0.063 W Resistor 18 Ω, 0805, 1%, 0.1 W Resistor Resistor Resistor Resistor AD7986BCPZ ADP2370ACPZ ADM7160AUJZ-2.5 AD8031ARZ ADR4550BRZ FXL2TD245 M24C02-WMN6TP ADR4525BRZ FXL4TD245BQX ADP7118ACPZN-5.0 ADR3412ARJZ AD8139ARDZ ADA4899-1 NC7S04 ADP7182AUJZ MTHOLE-4MM CRCW08055K00FKTA MCTC0525B1002T5E TBA MC01W08051100R ERA6AEB5900V ERA3AEB201V CPF0805B10RE1 MC0063W0603182R MC0063W060311R0 MC01W0805118R MC0063W0603110K CRCW04020000Z0ED MC00625W0402111K MC00625W0402111K5 AD7986BCPZ ADP2370ACPZ ADM7160AUJZ-2.5 AD8031ARZ ADR4550BRZ FXL2TD245L10X M24C02-WMN6TP ADR4525BRZ FXL4TD245BQX ADP7118ACPZN-5.0 ADR3412ARJZ AD8139ARDZ ADA4899-1YRDZ NC7SZ04M5 ADP7182AUJZ TBA FEC 1835558 FEC 1575900 Do Not Place FEC 9332375 FEC 1810481 Do Not Place FEC 1697403 FEC 9331590 FEC 2141505 FEC 9332740 FEC 9330399 FEC 1469661 FEC 1358070 FEC 1803142 AD7986BCPZ ADP2370ACPZ-R7 ADM7160AUJZ-2.5-R2 AD8031ARZ ADR4550BRZ Digikey FXL2TD245L10XCT-ND Digikey 497-8552-1-ND ADR4525BRZ Digikey FXL4TD245BQXCT-ND ADP7118ACPZN-5.0-R7 ADR3412ARJZ-R2 Do Not Place ADA4899-1YRDZ FEC 1013809 ADP7182AUJZ-R7 Do Not Place Rev. 0 | Page 26 of 31 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide UG-727 Table 5. Analog Bill of Materials for EVAL-AD7985FMCZ Reference Designator +5V, +7V5, +12V, +12V_EXT, −3P0V, 1PT2V_REFIN, 2PT5V_REF, 2V5_EXT, 3P3VAUX, 5V_REF, BVDD_EXT, GND1 to GND3 PG_C2M, VADJ, VCM, VCM_EXTERNAL +12V_SYS C1, C8, C11, C15, C25, C32, C33, C38, C39, C42, C44, C60, C62, C65 C2, C3, C5, C7, C9, C10, C12, C20, C27, C28, C31, C35, C40, C43, C52, C54, C56 to C59, C61, C75 C4, C66, C77, C78 C6, C19 C17, C22, C24, C26 C13, C16, C18 C14, C30, C34, C36, C63, C64, C69, C70 C21, C23 C29, C37, C41, C45 to C47, C50, C51, C53, C55, C67, C68, C72 to C74, C79 C48, C49 C71, C76 D1 J1, J2 J3 J4, J5 J6 J7 J8 J9 J10 JP1 to JP12, LK6 to LK9, LK11 to LK14, R1, R3, R4, R10 L1, L3 to L5 L2 L6 LK1, LK2, LK4, LK5, LK10 LK3 R2, R9, R13, R26, R42 to R44, R47, R49 to R51, R54, R55, R56, R70, R72 R5 R6 R7, R8, R14, R16, R17, R39, R45, R63 R11 R12, R22 Part Description Test point Part Number 20-313137 Stock Code Not Inserted Test point 20-313137 Do Not Place LED, 0603, green Capacitor SML-LX0603SUGW-TR 0805ZC106KAT2A Digikey 67-1693-1-ND FEC 2094042 Capacitor, 0603 MCCA000255 FEC 1759122 Capacitor Capacitor Capacitor Capacitor Capacitor GRM188R60J475KE19D GRM188R61A105KA61D TBA GRM219R61C106KA73D EMK212B7475KG-T FEC 1735527 FEC 1828798 Do Not Place FEC 1845747 FEC 2112841 Capacitor Capacitor, 0603 EMK212B7225KG-T Not Applicable FEC 1683654 Do Not Place Capacitor, 0603 Capacitor, 0603 Diode, Schottky, 40 V, 0.2 A, 1PS79SB30 SMA Connector, Power 3 SMA Header, 06, SKT, RA ASP-134604-01 Connector, 7 position, header Connector, 7 position, header Connector, 6 position, header 3 W, solder link, 0603 MCCA000201 C1608C0G1H101J080AA 1PS79SB30 5-1814400-1 CTB5000/3 142-0701-851 TBA ASP-134604-01 SSW-107-01-T-S TLW-107-05-G-S TLW-106-05-G-S MC 0.063W 0603 0R FEC 1907308 FEC 1907297 FEC 8734097 Not Inserted FEC 151790 Digikey J658-ND Not Inserted Samtec ASP-134604-01 FEC 1803478 FEC 1668499 Not Inserted FEC 9331662 Bead, 0805 Inductor, 22 µH, LPS4414-223MLB Inductor Jumper, 2 Jumper Resistor HZ0805E601R LPS4414-223MLB LQH32CN1R0M33L M20-9983646 & M7566-05 M20-9990246 Not Applicable DigiKey 240-1018-1-ND FEC 2287727 FEC 9522174 FEC 1022244 & 150-411 (36 Pin Strip) Do Not Insert Do Not Place Resistor Resistor Resistor MC0063W060313K3 MC0063W0603123K7 MC 0.1W 0805 0R FEC 9331026 FEC 1170924 FEC 9333681 Resistor Resistor MC0063W0603164K9 MC 0.063W 0603 1% 1K FEC 1170968 FEC 9330380 Rev. 0 | Page 27 of 31 UG-727 Reference Designator R15, R20, R21, R23, R24, R27 to R29, R31 to R33, R35, R36, R46, R48, R59, R60, R64, R65, R67 R18 R19 R25, R30 R34 R37, R38, R40, R41 R52, R53 R57, R58 R61 R62 R66 R68 R69 R71 U1 U2 U3, U12 U4, U11, U19 U5 U6 U7 U8 U9 U10, U18 U13 U14 U15, U16 U17 U20 X1, X2 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide Part Description Resistor, 0 Ω Part Number MC 0.063W 0603 0R Stock Code FEC 9331662 Resistor Resistor Resistor Resistor Resistor Resistor 82 Ω, 0603, 1%, 0.063 W Resistor 18 Ω, 0805, 1%, 0.1 W Resistor Resistor Resistor Resistor AD7985BCPZ ADP2370ACPZ ADM7160AUJZ-2.5 AD8031ARZ ADR4550BRZ FXL2TD245 M24C02-WMN6TP ADR4525BRZ FXL4TD245BQX ADP7118ACPZN-5.0 ADR3412ARJZ AD8139ARDZ ADA4899-1 NC7S04 ADP7182AUJZ MTHOLE-4MM CRCW08055K00FKTA MCTC0525B1002T5E TBA MC01W08051100R ERA6AEB5900V CPF0805B10RE1 MC0063W0603182R MC0063W060311R0 MC01W0805118R MC0063W0603110K CRCW04020000Z0ED MC00625W0402111K MC00625W0402111K5 AD7985BCPZ ADP2370ACPZ ADM7160AUJZ-2.5 AD8031ARZ ADR4550BRZ FXL2TD245L10X M24C02-WMN6TP ADR4525BRZ FXL4TD245BQX ADP7118ACPZN-5.0 ADR3412ARJZ AD8139ARDZ ADA4899-1YRDZ NC7SZ04M5 ADP7182AUJZ TBA FEC 1835558 FEC 1575900 Do Not Place FEC 9332375 FEC 1810481 FEC 1697403 FEC 9331590 FEC 2141505 FEC 9332740 FEC 9330399 FEC 1469661 FEC 1358070 FEC 1803142 AD7985BCPZ ADP2370ACPZ-R7 ADM7160AUJZ-2.5-R2 AD8031ARZ ADR4550BRZ Digikey FXL2TD245L10XCT-ND Digikey 497-8552-1-ND ADR4525BRZ Digikey FXL4TD245BQXCT-ND ADP7118ACPZN-5.0-R7 ADR3412ARJZ-R2 Do Not Place ADA4899-1YRDZ FEC 1013809 ADP7182AUJZ-R7 Do Not Place Rev. 0 | Page 28 of 31 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide UG-727 Table 6. Analog Bill of Materials for EVAL-AD7944FMCZ Reference Designator +5V, +7V5, +12V, +12V_EXT, −3P0V, 1PT2V_REFIN, 2PT5V_REF, 2V5_EXT, 3P3VAUX, 5V_REF, BVDD_EXT, GND1 to GND3 PG_C2M, VADJ, VCM, VCM_EXTERNAL +12V_SYS C1, C8, C11, C15, C25, C32, C33, C38, C39, C42, C44, C60, C62, C65 C2, C3, C5, C7, C9, C10, C12, C20, C27, C28, C31, C35, C40, C43, C52, C54, C56 to C59, C61, C75 C4, C66, C77, C78 C6, C19 C17, C22, C24, C26 C13, C16, C18 C14, C30, C34, C36, C63, C64, C69, C70 C21, C23 C29, C37, C41, C45 to C47, C50, C51, C53, C55, C67, C68, C72 to C74, C79 C48, C49 C71, C76 D1 J1, J2 J3 J4, J5 J6 J7 J8 J9 J10 JP1 to JP12, LK6 to LK9, LK11 to LK14, R1, R3, R4, R10 L1, L3 to L5 L2 L6 LK1, LK2, LK4, LK5, LK10 LK3 R2, R9, R13, R26, R42 to R44, R47, R49 to R51, R54, R55, R56, R70, R72 R5 R6 R7, R8, R14, R16, R17, R39, R45, R63 R11 R12, R22 Part Description Test point Part Number 20-313137 Stock Code Not Inserted Test point 20-313137 Do Not Place LED, 0603, green Capacitor SML-LX0603SUGW-TR 0805ZC106KAT2A Digikey 67-1693-1-ND FEC 2094042 Capacitor, 0603 MCCA000255 FEC 1759122 Capacitor Capacitor Capacitor Capacitor Capacitor GRM188R60J475KE19D GRM188R61A105KA61D TBA GRM219R61C106KA73D EMK212B7475KG-T FEC 1735527 FEC 1828798 Do Not Place FEC 1845747 FEC 2112841 Capacitor Capacitor, 0603 EMK212B7225KG-T Not Applicable FEC 1683654 Do Not Place Capacitor, 0603 Capacitor, 0603 Diode, Schottky, 40 V, 0.2 A, 1PS79SB30 SMA Connector, Power 3 SMA Header, 06, SKT, RA ASP-134604-01 Connector, 7 position, header Connector, 7 position, header Connector, 6 position, header 3 W, solder link, 0603 MCCA000201 C1608C0G1H101J080AA 1PS79SB30 5-1814400-1 CTB5000/3 142-0701-851 TBA ASP-134604-01 SSW-107-01-T-S TLW-107-05-G-S TLW-106-05-G-S MC 0.063W 0603 0R FEC 1907308 FEC 1907297 FEC 8734097 Not Inserted FEC 151790 Digikey J658-ND Not Inserted Samtec ASP-134604-01 FEC 1803478 FEC 1668499 Not Inserted FEC 9331662 Bead, 0805 Inductor, 22 µH, LPS4414-223MLB Inductor Jumper, 2 Jumper Resistor HZ0805E601R LPS4414-223MLB LQH32CN1R0M33L M20-9983646 & M7566-05 M20-9990246 Not Applicable DigiKey 240-1018-1-ND FEC 2287727 FEC 9522174 FEC 1022244 & 150-411 (36 Pin Strip) Do Not Insert Do Not Place Resistor Resistor Resistor MC0063W060313K3 MC0063W0603123K7 MC 0.1W 0805 0R FEC 9331026 FEC 1170924 FEC 9333681 Resistor Resistor MC0063W0603164K9 MC 0.063W 0603 1% 1K FEC 1170968 FEC 9330380 Rev. 0 | Page 29 of 31 UG-727 Reference Designator R15, R20, R21, R23, R24, R27 to R29, R31 to R33, R35, R36, R46, R48, R59, R60, R64, R65, R67 R18 R19 R25, R30 R34 R37, R38, R40, R41 R52, R53 R57, R58 R61 R62 R66 R68 R69 R71 U1 U2 U3, U12 U4, U11, U19 U5 U6 U7 U8 U9 U10, U18 U13 U14 U15, U16 U17 U20 X1, X2 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide Part Description Resistor, 0 Ω Part Number MC 0.063W 0603 0R Stock Code FEC 9331662 Resistor Resistor Resistor Resistor Resistor Resistor 82 Ω, 0603, 1%, 0.063 W Resistor 18 Ω, 0805, 1%, 0.1 W Resistor Resistor Resistor Resistor AD7944BCPZ ADP2370ACPZ ADM7160AUJZ-2.5 AD8031ARZ ADR4550BRZ FXL2TD245 M24C02-WMN6TP ADR4525BRZ FXL4TD245BQX ADP7118ACPZN-5.0 ADR3412ARJZ AD8139ARDZ ADA4899-1 NC7S04 ADP7182AUJZ MTHOLE-4MM CRCW08055K00FKTA MCTC0525B1002T5E TBA MC01W08051100R ERA6AEB5900V CPF0805B10RE1 MC0063W0603182R MC0063W060311R0 MC01W0805118R MC0063W0603110K CRCW04020000Z0ED MC00625W0402111K MC00625W0402111K5 AD7944BCPZ ADP2370ACPZ ADM7160AUJZ-2.5 AD8031ARZ ADR4550BRZ FXL2TD245L10X M24C02-WMN6TP ADR4525BRZ FXL4TD245BQX ADP7118ACPZN-5.0 ADR3412ARJZ AD8139ARDZ ADA4899-1YRDZ NC7SZ04M5 ADP7182AUJZ TBA FEC 1835558 FEC 1575900 Do Not Place FEC 9332375 FEC 1810481 FEC 1697403 FEC 9331590 FEC 2141505 FEC 9332740 FEC 9330399 FEC 1469661 FEC 1358070 FEC 1803142 AD7944BCPZ ADP2370ACPZ-R7 ADM7160AUJZ-2.5-R2 AD8031ARZ ADR4550BRZ Digikey FXL2TD245L10XCT-ND Digikey 497-8552-1-ND ADR4525BRZ Digikey FXL4TD245BQXCT-ND ADP7118ACPZN-5.0-R7 ADR3412ARJZ-R2 Do Not Place ADA4899-1YRDZ FEC 1013809 ADP7182AUJZ-R7 Do Not Place Rev. 0 | Page 30 of 31 EVAL-AD7944FMCZ/EVAL-AD7985FMCZ/EVAL-AD7986FMCZ User Guide UG-727 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. ©2015 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG12476-0-7/15(0) Rev. 0 | Page 31 of 31
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