Texas Instruments ADS8168EVM-PDK User Manual Download Page 34 | Manualshive

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Summary of Contents for ADS8168EVM-PDK

Page 1: ...SAR ADC The ADS8168EVM PDK includes the ADS8168EVM board the PHI controller board and accompanying computer software that enables the user to communicate with the ADC over a universal serial bus USB c...

Page 2: ...l of Materials 22 7 2 PCB Layout 24 7 3 Schematics 26 List of Figures 1 ADS8268EVM PDK 1 2 ADS8168EVM Features 5 3 REF5050 5 0 V External Reference Source 7 4 ADS8168EVM Default Jumper Settings 10 5 S...

Page 3: ...ifications for External Power Connection 9 4 Jumper Configuration Details 10 5 External Source Requirements for Evaluation of the ADS8168 18 6 External Source Requirements for ADS8168 Evaluation 20 7...

Page 4: ...nostic testing as well as accurate performance evaluation of the ADS8168 ADC USB powered no external power supply is required The PHI controller that provides a convenient communication interface to t...

Page 5: ...www ti com Overview 5 SBAU291 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated ADS8168EVM PDK Figure 2 ADS8168EVM Features...

Page 6: ...edance input signal conditioning driver circuit is provided On all channels a resistor capacitor combination helps to provide a stable voltage on the input of the ADS8168 multiplexer inputs Table 1 P2...

Page 7: ...ternal reference the user must select the external reference mode by writing to the configuration register of the ADS8168 Next power up the external reference by installing a shunt on JP1 labeled AVdd...

Page 8: ...of the ADC The digital interface configuration can be selected by navigating to the ADS8168EVM Interface Configuration Settings Tab in the GUI For more information see Section 6 1 Connector J4 provid...

Page 9: ...es are connected ensure that modifications are performed according to Table 3 Table 3 Required Modifications for External Power Connection External Supply Default Voltage Connection Location Required...

Page 10: ...pin on the ADS8168 The default position is between pins 1 2 applying GND to the AIN COM Other options are Ref 2 3 4 or an external connection 5 6 In default configuration no other jumpers are necessa...

Page 11: ...leges on the PC to be able to install the EVM software The following steps list the directions to install the software CAUTION It may be necessary to manually disable any anti virus software running o...

Page 12: ...ADS8168EVM_PDK Initial Setup www ti com 12 SBAU291 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated ADS8168EVM PDK Figure 5 Software Installation Prompts...

Page 13: ...ation will appear on the screen Click Next to proceed Figure 6 ADS8168 Device Driver Installation Wizard Prompts NOTE A notice may appear on the screen stating that Widows cannot verify the publisher...

Page 14: ...eedback Copyright 2017 Texas Instruments Incorporated ADS8168EVM PDK Figure 8 ADS8168EVM Successful Installation Complete Step 4 After these installations verify that C Program Files x86 Texas Instrum...

Page 15: ...o the PHI Install the two screws as indicated in Figure 10 2 Use the USB cable provided to connect the PHI to the computer 1 LED D5 on the PHI lights up indicating that the PHI is powered up 2 LEDs D1...

Page 16: ...left plane The software defaults to operating the ADS8168 in Manual Mode sampling Channel 0 at 1 MSPS The digital interface defaults to operating the SCLK at 15 MHz Figure 12 EVM GUI Global Input Para...

Page 17: ...Time Domain Display Tool The time domain display tool allows visualization of the time domain conversion results given a set of analog input signals If multiple channels are selected all data is plot...

Page 18: ...ance evaluation the external differential source must have better specifications than the ADS8168 itself to ensure that the measured system performance is not limited by the performance of the signal...

Page 19: ...nded 6 4 Histogram Tool Noise degrades ADC resolution and the histogram tool can be used to estimate effective resolution which is an indicator of the number of bits of ADC resolution losses resulting...

Page 20: ...ities of the external signal source the multiplexer drive amplifier if used and the ADC driver amplifier For this reason the external source linearity must be better than the ADC linearity To make sur...

Page 21: ...PDK Operation 21 SBAU291 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated ADS8168EVM PDK Figure 16 shows the linearity analysis tool dialog window Figure 16 Li...

Page 22: ...10 V 10 X7R 0805 C0603C561J5GACTU 9 C14 C17 C18 C20 C22 C23 C24 C25 C26 560pF Kemet CAP CERM 560 pF 50 V 5 C0G NP0 0603 GRM1885C1H122JA01D 2 C27 C28 1200pF Murata CAP CERM 1200 pF 50 V 5 C0G NP0 0603...

Page 23: ...TP2 TP3 TP4 TP5 TP6 Keystone Test Point Miniature SMT OPA320AIDBVR 2 U1 U6 Texas Instruments Precision 20 MHz 0 9 pA Ib RRIO CMOS Operational Amplifier 1 8 to 5 5 V 40 to 125 degC 5 pin SOT23 DBV5 Gre...

Page 24: ...k Copyright 2017 Texas Instruments Incorporated ADS8168EVM PDK 7 2 PCB Layout Figure 17 through Figure 21 illustrate the EVM PCB layout Figure 17 ADS8168 EVM PCB Top Overlay Figure 18 ADS8168 EVM PCB...

Page 25: ...m Bill of Materials PCB Layout and Schematics 25 SBAU291 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated ADS8168EVM PDK Figure 21 ADS8168 EVM PCB Layer 4 Bott...

Page 26: ...tics www ti com 26 SBAU291 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated ADS8168EVM PDK 7 3 Schematics Figure 22 through Figure 24 illustrate the EVM schema...

Page 27: ...ti com Bill of Materials PCB Layout and Schematics 27 SBAU291 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated ADS8168EVM PDK Figure 23 ADS8588EVM PDK Schemat...

Page 28: ...l of Materials PCB Layout and Schematics www ti com 28 SBAU291 November 2017 Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated ADS8168EVM PDK Figure 24 ADS8588EVM PDK Schemat...

Page 29: ...set forth above or credit User s account for such EVM TI s liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that...

Page 30: ...the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain great...

Page 31: ...t the EVM user guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even with the...

Page 32: ...OST OF REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF...

Page 33: ...TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD...

Page 34: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments ADS8168EVM PDK...

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