Analog Devices UG Series, User Manual

Page 1: ...he AD7124 8 24 bit low power low noise analog to digital converter ADC A 7 V to 9 V external supply is regulated to 3 3 V to supply the AD7124 8 and support all necessary components The EVAL AD7124 8SDZ board connects to the USB port of the PC by connection to the EVAL SDP CB1Z motherboard The EVAL AD7124 8SDZ software fully configures the AD7124 8 device register functionality and provides dc tim...

Page 2: ...4 Device Description 4 Hardware Link Options 4 Power Supplies 6 Serial Interface 6 Analog Inputs 6 Reference Options 7 Evaluation Board Setup Procedures 7 Evaluation Board Software 8 Software Installation Procedures 8 Setting Up the System for Data Capture 11 Software Operation 12 Evaluation Board Schematics and Artwork 18 EVAL AD7124 8SDZ Bill of Materials 27 REVISION HISTORY 1 15 Revision PrA In...

Page 3: ...24 8SDZ board a Screw the two boards together using the plastic screw washer set included in the evaluation board kit to ensure that the boards are connected firmly together 3 Apply an external voltage in the range of 7 V to 9 V to the J3 or J5 connecter of the EVAL AD7124 8SDZ board This provides the power supply for the board 4 Connect the EVAL SDP CB1Z board to the PC using the supplied USB cab...

Page 4: ...lects the external 7 V to 9 V power supply to come from Connector J5 LK3 Inserted Inserting this link connects REFIN to AVSS LK4 2 5 V Selects the reference source for the ADC In position 2 5V REFIN1 is connected to the external 2 5 V reference ADR4525 In position INT REF REFIN1 is connected to the REFOUT pin of the AD7124 8 The AD7124 8 s internal reference can be enabled and applied to the AD712...

Page 5: ...Analog input connector Connections to AIN6 to AIN7 are available along with REFIN1 and analog power supply connections This connector can be used to connect a loadcell to the AD7124 8 J12 6 pin connector Provides an I2C interface to allow the SDP to interface to a digital temperature sensor This is required if a thermocouple is interfaced to the AD7124 8 using connector A2 J13 7 pin connector whic...

Page 6: ...s CS SCLK DIN and DOUT RDY all are inputs except for DOUT RDY which is an output If you wish to operate the EVAL AD7124 8SDZ in standalone mode the AD7124 8 serial interface lines can be disconnected from the 120 pin header by removing the 0 Ω links R9 through R13 The test points can then be used to fly wire the signals to an alternative digital capture setup ANALOG INPUTS The EVAL AD7124 8SDZ pri...

Page 7: ...e Software Installation Procedures section set up the evaluation and SDP boards as detailed in this section Warning The evaluation software and drivers must be installed before con necting the evaluation board and EVAL SDP CB1Z board to the USB port of the PC to ensure that the evaluation system is correctly recognized when it is connected to the PC Configuring the Evaluation and SDP Boards 1 Conn...

Page 8: ... port of the PC insert the installation CD into the CD ROM drive 2 Double click the setup exe file to begin the evaluation board software installation The software is installed to the following default location C Program Files Analog Devices AD7124 8 3 A dialog box appears asking for permission to allow the program to make changes to your computer Click Yes Figure 4 AD7124 8 Evaluation Software In...

Page 9: ... to continue Figure 7 AD7124 8 Evaluation Software Installation Reviewing a Summary of the Installation 7 A dialog box informs you when the installation is complete Click Next Figure 8 AD7124 8 Evaluation Software Installation Indicating When the Installation Is Complete Rev PrA Page 9 of 36 ...

Page 10: ...rivers Setup Beginning the Drivers Installation 2 Select the location to install the drivers and then click Next Figure 10 EVAL SDP CB1Z Drivers Setup Selecting the Location for Drivers Installation 3 Click Install to confirm that you would like to install the drivers Figure 11 EVAL SDP CB1Z Drivers Setup Granting Permission to Install Drivers 4 To complete the drivers installation click Finish wh...

Page 11: ...igure 14 b The EVAL SDP CB1Z board should appear under ADI Development Tools This indicates that the driver software is installed and that the board is connecting to the PC correctly Figure 14 Device Manager Checking That the Board Is Connected to the PC Correctly Launching the Software After completing the steps in the Setting Up the System for Data Capture section launch the AD7124 8 software as...

Page 12: ...ered File This allows you to write the current set of data to a file for later use log data as it is gathered and exit the program Help This details the revision of the software Exiting the Software To exit the software click the red X at the top right hand corner of the main window The software can also be exited using File Configure ADC Setup Button Clicking ADC Setup opens the AD7124 8 Register...

Page 13: ...ation d Setup 0 is configured with the following register settings i In the Config_0 register the external reference is selected as the reference source for the ADC conversion ii In the Filter_0 register FS0 is set to 2047 and the sinc4 filter is selected This sets the output data rate to 9 38 sps iii In the Offset_0 register the default offset register value is selected iv In the Gain_0 register ...

Page 14: ...UG XXX Evaluation Board User Guide Figure 17 Configuration for Noise Test Rev PrA Page 14 of 36 ...

Page 15: ...his box 2 Select the number of samples to analyze in the Samples box Note that when performing a continuous capture this number is limited to 65 536 samples 3 When Sampling is set to Capture a batch of samples is read when Start Sampling is clicked with the batch size being set by the value in the Samples box When Sampling is set to Continuous the software performs a continuous capture from the AD...

Page 16: ...k to peak noise and rms noise are displayed below the graph in the Analysis section for the current batch of samples If several analog input channels are enabled each enabled channel can be selected and the conversions on that channel analysed using Analysis Channel The conversion data can be saved in a text file using File at the top of the window To save the data into an Excel file right click o...

Page 17: ...h as peak to peak noise and rms noise are displayed to the right of the graph in the Analysis Results section for the current batch of samples The conversion data can be saved in a text file using File at the top of the window To save the data into an Excel file right click on the histogram graph and select Export Data from the drop down menu that appears A Save dialog box is displayed prompting y...

Page 18: ...UG XXX Evaluation Board User Guide EVALUATION BOARD SCHEMATICS AND ARTWORK Figure 21 Schematic Rev PrA Page 18 of 36 ...

Page 19: ...Evaluation Board User Guide UG XXX Figure 22 Schematic Power Supply Rev PrA Page 19 of 36 ...

Page 20: ...UG XXX Evaluation Board User Guide Figure 23 Schematic Regulators Rev PrA Page 20 of 36 ...

Page 21: ...Evaluation Board User Guide UG XXX Figure 24 Schematic SDP Rev PrA Page 21 of 36 ...

Page 22: ...UG XXX Evaluation Board User Guide Figure 25 Top Printed Circuit Board PCB Silkscreen Rev PrA Page 22 of 36 ...

Page 23: ...Evaluation Board User Guide UG XXX Figure 26 Layer 1 Component Side Rev PrA Page 23 of 36 ...

Page 24: ...UG XXX Evaluation Board User Guide Figure 27 Layer 2 Ground Plane Rev PrA Page 24 of 36 ...

Page 25: ...Evaluation Board User Guide UG XXX Figure 28 Layer 3 Power Ground Plane Rev PrA Page 25 of 36 ...

Page 26: ...UG XXX Evaluation Board User Guide Figure 29 Layer 4 Component Side Rev PrA Page 26 of 36 ...

Page 27: ...1H 105KA12L FEC 173 5541 C7 DNI TBD C0402 Ceramic Capacitor not inserted 0402 n a n a Do Not Insert C8 DNI TBD C0402 Ceramic Capacitor not inserted 0402 n a n a Do Not Insert C9 DNI TBD C0402 Ceramic Capacitor not inserted 0402 n a n a Do Not Insert C10 0 01uF TBD C0402 Ceramic Capacitor 50V NPO 0603 Phycomp 2238 586 15636 FEC 722 236 C11 0 01uF TBD C0402 Ceramic Capacitor 50V NPO 0603 Phycomp 223...

Page 28: ...pacitor ceramic 50V X5R 1210 Murata GRM32ER61H 106K FEC 184 5764 C36 0 1uF 10 C0402 Capacitor ceramic 50V X7R 0603 Murata GRM188R71H 104K FEC 882 0023 C37 1uF 10 C0603 Capacitor 0603 6 3V Murata GRM188R70J1 05KA01D FEC 184 5765 C38 0 1uF 10 C0603 Capacitor ceramic 50V X7R 0603 Murata GRM188R71H 104K FEC 882 0023 C39 10uF TBD 1210 Capacitor ceramic 50V X5R 1210 Murata GRM32ER61H 106K FEC 184 5764 C...

Page 29: ...ted keep hole clear of solder n a n a Do Not Insert GND5 TESTPOINT SMALL Test point not inserted keep hole clear of solder n a n a Do Not Insert GND6 TESTPOINT SMALL Test point not inserted keep hole clear of solder n a n a Do Not Insert J1 CON 120 FX8 120S SV 120 way connector 0 6mm pitch Hirose FX8 120S SV 21 FEC 132 4660 J2 SMB Straight PCB Mount SMB Jack keep hole clear of solder Tyco 1 133748...

Page 30: ...P 2 Pin 0 1 Pitch Header Shorting Shunt Harwin M20 9990246 FEC 102 2247 150 411 LK6 JUMPER_2 4 Pin 2X2 0 1 Header Shorting Block Harwin M20 9983646 M7566 05 FEC 1022244 150 411 36 Pin Strip MCLK TESTPOINT SMALL Test point not inserted keep hole clear of solder n a n a Do Not Insert Q1 SOT23 MOSFET Transistor Vishay Siliconix SI2304DDS T1 GE3 FEC 185 8939 Q2 SOT23 TRANSISTOR NPN SOT 23 ON SEMICONDU...

Page 31: ... 1 10K2 FEC 180 3137 R25 15K 0 01 R0402 RESISTOR 0402 1 15k MULTICOMP MC 0 0625W 0402 1 15k FEC 1358073 R26 1K 1 R0402 Resistor 0603 Multicomp MC 0 063W 0603 1 1K FEC 933 0380 R27 1K 1 R0402 Resistor 0603 Multicomp MC 0 063W 0603 1 1K FEC 933 0380 R28 1950r 1990r TO 92 MODIFIED Thermistor Infineon Q62705 K110 Philips Arrow KTY81 110 R29 1K 1 R0402 Resistor 0603 Multicomp MC 0 063W 0603 1 1K FEC 93...

Page 32: ... 0625W 0402 1 61R9 FEC 180 2915 R56 57K6 0 01 R0402 Resistor 0402 57K6 Multicomp MC 0 0625W 0402 1 57K6 FEC 185 1295 R57 15K 0 01 R0402 Resistor 0402 1 15K Multicomp MC 0 0625W 0402 1 15K FEC 135 8073 R58 0R 0 01 R0402 Resistor 0402 Vishay CRCW0402000 0Z0ED FEC 146 9661 R59 0R 0 01 R0402 Resistor 0402 Vishay CRCW0402000 0Z0ED FEC 146 9661 R60 2K4 0 01 R0603 Resistor Thick Film 2 4K 0603 100mW 1 Ya...

Page 33: ...lear of solder n a n a Do Not Insert S6 TESTPOINT SMALL Test point not inserted keep hole clear of solder n a n a Do Not Insert S6 TESTPOINT SMALL Test point not inserted keep hole clear of solder n a n a Do Not Insert S7 TESTPOINT SMALL Test point not inserted keep hole clear of solder n a n a Do Not Insert S7 TESTPOINT SMALL Test point not inserted keep hole clear of solder n a n a Do Not Insert...

Page 34: ...tor 5V 20V 500mA Ultralow Noise CMOS Analog Devices ADP7104ARD Z 5 0 ADP7104ARDZ 5 0 U3 MSO10 Quad Voltage Monitor and Sequencer Analog Devices ADM1185ARM Z 1 ADM1185ARMZ 1 U4 MSO8 50 mA High Voltage Micropower Linear Regulator ADJ Analog Devices ADP1720ARM Z R7 ADP1720ARMZ R7 U5 LFCSP 32 4 Channel Low Power Low Noise Sigma Delta ADC Analog Devices AD7124 8BCPZ AD7124 8BCPZ U6 SO8NB 2 5V low noise...

Page 35: ...for any reason Upon discontinuationof useof theEvaluation Boardor terminationof this Agreement Customer agreesto 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 b...

Page 36: ...UG XXX Evaluation Board User Guide 2013 Analog Devices Inc All rights reserved Trademarks and registered trademarks are the property of their respective owners Rev PrA Page 36 of 36 ...