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Texas Instruments ADS7853EVM-PDK Скачать руководство пользователя страница 1

User's Guide

SBAU210A – June 2014 – Revised August 2014

ADS8353EVM-PDK and ADS7853EVM-PDK

ADS8353EVM-PDK and ADS7853EVM-PDK

This user's guide describes the characteristics, operation and use of the ADS8353EVM and
ADS7853EVM performance demonstration kits (PDKs). These kits are evaluation platforms for the
ADS8353

and

ADS7853,

dual-channel,

16-bit

and

14-bit,

simultaneous

sampling,

successive

approximation register (SAR) analog-to-digital converters (ADCs) that support single-ended and pseudo-
differential analog inputs. These EVMs ease the evaluation of the ADS8353 and ADS7853 devices with
hardware and software for computer connectivity through universal serial bus (USB). This user's guide
includes a complete circuit descriptions, schematic diagrams, and bill of materials.

Throughout this document, the terms ADSxx53EVM-PDK, demonstration kit, evaluation board, evaluation
module are synonyms with the ADS8353EVM-PDK and ADS7853EVM-PDK.

The

following

related

documents

are

available

through

the

Texas

Instruments

web

site

at

http://www.ti.com

.

Related Documentation

Device

Literature Number

,

1

SBAU210A – June 2014 – Revised August 2014

ADS8353EVM-PDK and ADS7853EVM-PDK

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Copyright © 2014, Texas Instruments Incorporated

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Содержание ADS7853EVM-PDK

Страница 1: ...and software for computer connectivity through universal serial bus USB This user s guide includes a complete circuit descriptions schematic diagrams and bill of materials Throughout this document the...

Страница 2: ...nnections 5 2 Single Ended or Pseudo Differential Input Configuration 6 3 Bipolar Input Signal Configuration with 2 Vref range 7 4 Unipolar Input Signal Configuration 7 5 REF5025 2 5 V External Refere...

Страница 3: ...GUI Settings Page 28 31 Set Capture Mode to SDCC Interface While Using the EVM Hardware 28 32 ADSxx53EVM PCB Top Layer 31 33 ADSxx53EVM PCB Ground Layer 31 34 ADSxx53EVM PCB Power Layer 32 35 ADSxx53...

Страница 4: ...2 Vref range USB port for computer interfacing Easy to use evaluation software for Windows XP Windows 7 Windows 8 operating systems Data collection to text files Built in analysis tools including scop...

Страница 5: ...Number Signal Description CHA inverted input The signal is routed through an OPA836 JP1 2 AIN_A in the inverting configuration CHB inverted input The signal is routed through an OPA836 JP2 2 AIN_B in...

Страница 6: ...al analog input signals To support single ended inputs set bit B7 in the configuration CFR register to 0 CFR B7 0 and connect ADC inputs AINM_A and AINM_B to GND These devices can also be programmed t...

Страница 7: ...J2 JP2 2 analog interface connectors Figure 4 Unipolar Input Signal Configuration 2 5 ADSxx53EVM Onboard Reference and ADSxx53 Device Internal Reference The ADSxx53 dual simultaneous ADC operates wit...

Страница 8: ...B 0 22 10 F EVM Analog Interface www ti com Figure 5 REF5025 2 5 V External Reference Source and OPA2350 Reference Driver 8 ADS8353EVM PDK and ADS7853EVM PDK SBAU210A June 2014 Revised August 2014 Sub...

Страница 9: ...utput for channel A J6 42 SDO_B Serial data output for channel B 3 1 Serial Interface SPI The ADSxx53 digital output is available in SPI compatible format which makes interfacing with microprocessors...

Страница 10: ...in Number Pin Name Function JP12 Shunt 2 3 default Onboard 5 V AVDD analog supply selected Shunt 1 2 External 5 V AVDD connected through two terminal block J5 JP11 Open Onboard regulated AVDD supply s...

Страница 11: ...nboard 2 5 V reference to REFIO_A open when using ADSxx53 JP5 Closed internal reference Closed to connect onboard 2 5 V reference to REFIO_B open when using ADSxx53 JP6 Closed internal reference JP7 S...

Страница 12: ...WB revision A This PDK kit version includes 1 microSD Card Verify the microSD memory card is installed on the simple capture card controller board ADSxx53EVM PWB revision C This PDK kit version includ...

Страница 13: ...ottom View of ADSxx53EVM Rev C with microSD Card Installed The microSD card s is formatted from the factory with the necessary firmware files for the simple capture card controller board to boot prope...

Страница 14: ...ard to the simple capture card controller board as Figure 9 shows Figure 9 Connecting the ADSxx53EVM Board to the Simple Capture Card Controller Board Step 4 Connect the simple capture card controller...

Страница 15: ...action installs the EVM GUI software and the required simple capture card device driver components 4 After the installer begins a welcome screen displays Click Next to continue 5 A prompt appears with...

Страница 16: ...the Windows security message shown in Figure 14 Select Install this driver software anyway to install the driver required for proper operation of the software The drivers contained within the install...

Страница 17: ...device driver as shown in Figure 15 and Figure 16 Step 2 A computer restart may be required to finish the software installation If prompted restart the PC to complete the installation Figure 15 Simpl...

Страница 18: ...x53 Adjust the ADSxx53EVM settings when the EVM is not acquiring data During acquisition all controls are disabled and settings cannot be changed Settings on the ADSxx53EVM correspond to settings desc...

Страница 19: ...On the ADSxx53 EVM Settings page find the Internal Reference CFR Bit 6 button to select the internal or external onboard reference sources Jumpers JP5 and JP6 must be installed when selecting the ext...

Страница 20: ...on Figure 20 shows the internal reference Vref Value ADC x control panels on the ADSxx53EVM Settings page of the GUI Figure 20 Programming the REFDAC Registers in the ADSxx53EVM 4 Scroll down in the A...

Страница 21: ...Settings page of the GUI Figure 22 Single Ended or Pseudo Differential Jumper Settings Description on the GUI 6 The ADSxx53EVM can be driven with a signal generator producing a bipolar source signal...

Страница 22: ...evice datasheet for more information Figure 24 shows the Device Registers page of the GUI Figure 24 Device Registers Page 6 5 Capturing Data with the ADSxx53EVM PDK Access the Data Monitor page in the...

Страница 23: ...data rate of the ADS7853 is configured The ADS7853EVM PDK software supports SCLK frequencies of 34 MHz 24 MHz 20 MHz and 16 2 MHz These SCLK frequencies correspond to data rates of 1 MSPS 705 8 kSPS 5...

Страница 24: ...nel B in decimal data format Information such as the device name date and time the sampling frequency and number of samples of the data record are also stored In order to save any data captured by the...

Страница 25: ...mic performance parameters such as signal to noise ratio SNR total harmonic distortion THD signal to noise and distortion ratio SINAD and spurious free dynamic range SFDR Figure 28 shows the FFT perfo...

Страница 26: ...ne no window weighting function applied use for coherent data Hanning Hamming Blackman Harris Exact Blackman Blackman Flat Top 4 Term Blackman Harris 7 Term Blackman Harris Low Sidelobe For a more tho...

Страница 27: ...oise The Mean column displays the average value of the data set The ENOB StDev column displays the effective number of bits of the converter as calculated from the standard deviation or RMS noise The...

Страница 28: ...er to select the hardware interface mode of operation navigate to the GUI Settings page and select the SDCC Interface option on the Capture Mode drop down menu as shown in Figure 30 and Figure 31 Figu...

Страница 29: ...5R 8 2 C47 C50 Murata GRM188R61C225KE15D 0603 CAP CERM 0 22uF 16V 10 X5R 9 1 C49 TDK GRM188R61C224KA88D 0603 NXP 10 1 D1 DIODE ZENER 5 9V 250MW SOT23 PLVA659A 215 Semiconductors 11 2 J1 J2 Connector T...

Страница 30: ...In VFB Op Amp 205MHz Low Noise Low Drift Precision Voltage 35 1 U5 Texas Instruments REF5025IDGK Reference 36 2 U6 U10 Not installed N A N A Atmel I2C Compatible 2 Wire Serial Atmel 37 1 U7 AT24C02C X...

Страница 31: ...to scale These figures are intended to show how the board is laid out they are not intended to be used for manufacturing ADSxx53EVM PCBs Figure 32 ADSxx53EVM PCB Top Layer Figure 33 ADSxx53EVM PCB Gr...

Страница 32: ...yer Figure 35 ADSxx53EVM PCB Bottom Layer 7 3 Schematics The schematics for the ADSxx53EVM are appended to the end of this user s guide 32 ADS8353EVM PDK and ADS7853EVM PDK SBAU210A June 2014 Revised...

Страница 33: ...t document 4 Changed ADSxx53EVM revision C requirement to two microSD cards in Section 5 2 12 Added Figure 8 13 Added SCLK frequencies for the ADS8353EVM in Section 6 5 22 Changed J7 TP7 TP8 TP9 TP10...

Страница 34: ...OR2 PIR301 PIR302 COR3 PIR401 PIR402 COR4 PIR501 PIR502 COR5 PIR601 PIR602 COR6 PIR701 PIR702 COR7 PIR801 PIR802 COR8 PIR901 PIR902 COR9 PIR1001 PIR1002 COR10 PIR1101 PIR1102 COR11 PIR1201 PIR1202 COR...

Страница 35: ...201 PIC5202 COC52 PIC5301 PIC5302 COC53 PIC5401 PIC5402 COC54 PID101 PID102 PID103 COD1 PIJ501 PIJ502 COJ5 PIJ601 PIJ602 PIJ603 PIJ604 PIJ605 PIJ606 PIJ607 PIJ608 PIJ609 PIJ6010 PIJ6011 PIJ6012 PIJ601...

Страница 36: ...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...

Страница 37: ...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...

Страница 38: ...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...

Страница 39: ...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...

Страница 40: ...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...

Страница 41: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments ADS7853EVM PDK ADS8353EVM PDK...

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