Texas Instruments PGA309EVM-USB - Manuals

Texas Instruments PGA309EVM-USB – Manual in PDF format online.

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Manual

Manual Texas Instruments PGA309EVM-USB

Summary

Page 2 - List of Tables; PGA309 Test Board Parts List; Introduction and Overview; of the PGA309, refer to the product data sheet (

Introduction and Overview www.ti.com List of Tables 1 PGA309 Test Board Parts List ........................................................................................... 12 2 J1 Pinout (25-Pin Male DSUB) .......................................................................................... ...

Page 3 - PGA309EVM-USB Hardware; Figure 1; Figure 1. Hardware Included with the INA282-286EVM

www.ti.com Introduction and Overview 1.1 PGA309EVM-USB Hardware Figure 1 shows the hardware included with the PGA309EVM-USB kit. Contact the factory if any component is missing. It is highly recommended that you check the TI web site (at http://www.ti.com ) to verify that you have the latest softwar...

Page 4 - Related Documentation from Texas Instruments; Document; If You Need Assistance; This document contains caution statements.; CAUTION

Introduction and Overview www.ti.com 1.2 Related Documentation from Texas Instruments The following documents provides information regarding Texas Instruments integrated circuits used in theassembly of the PGA309EVM-USB. This user's guide is available from the TI web site under literaturenumber SBOU...

Page 5 - System Setup; Figure 2; Theory of Operation for PGA309_Test_Board Hardware; Figure 3

USB DAQ Platform PGA309 Test Board EVM Power PGA309 V Supply Switched 5.0V Power DUT One-Wire Interface 25-Pin Male DSUB Signals From USB DAQ Platform 25-Pin Female DSUB Signals From USB DAQ Platform I C Interface 2 4mA to 20mA I/V Converter Sensor Connection Sensor Emulator www.ti.com System Setup ...

Page 6 - See; for the sensor power.; in your final design.

System Setup www.ti.com The PGA309_Test_Board also has an onboard sensor emulator. The sensor emulator is a circuit thatgenerates the same type of signals generated by a bridge sensor. The sensor emulator circuit is controlledby the PGA309EVM-USB software. Using the sensor emulator allows you to get...

Page 9 - Figure 6

www.ti.com System Setup Figure 6 shows the output section of the PGA309EVM_Test_Board. There are two output options: voltage output and current output. The voltage output option is selected by placing JMP9 in the NC position. Thecurrent output option is selected by moving JMP9 to the V OUT to XTR po...

Page 10 - Figure 7

System Setup www.ti.com Figure 7 shows the sensor emulator circuit. The sensor emulator generates signals to help users evaluate the PGA309. No part of this circuit is required in your final design. The sensor emulator uses a DAC8555 (U8) to generate an emulated temperature signal, common-mode signa...

Page 11 - Figure 8

www.ti.com System Setup Figure 8 illustrates the two 25-pin D-SUB connectors J1 and J2. These connectors provide all the signals necessary to communicate with the PGA309. U5 is the EEPROM used to store the calibration look-uptable used with the PGA309. Figure 8. PGA309_Test_Board Connections to USB-...

Page 12 - Table 1; Table 1. PGA309 Test Board Parts List

System Setup www.ti.com 2.3 PGA309_Test_Board Parts List Table 1 describes the parts list for the PGA309_Test_Board. Table 1. PGA309 Test Board Parts List Qty Value Ref Des Description Vendor Part Number Capacitor, ceramic 560pF 50V NP0 1 560pF C6 Panasonic - ECG ECJ-1VC1H561J 0603 Capacitor, cerami...

Page 14 - Table 2; Pin on J1

System Setup www.ti.com 2.4 PGA309_Test_Board: Signal Definitions and Pinouts This section provides the signal definitions for the PGA309_Test_Board. 2.4.1 J1 (25-Pin Male DSUB) Table 2 shows the different signals connected to J1 on the PGA309_Test_Board. This table also identifies signals connected...

Page 15 - Table 3; Pin on J2

www.ti.com System Setup 2.4.2 J2 (25-Pin Female DSUB) Table 3 shows the different signals connected to J2 on the PGA309_Test_Board. This table also identifies signals connected to pins on J2 that are not used on PGA309_Test_Board. Table 3. J2 Pinout (25-Pin Female DSUB) Pin on J2 Signal Used on This...

Page 16 - USB DAQ Platform; ToPCandP; Figure 9; PGA309EVM-USB Hardware Setup; Electrostatic Discharge Warning

TUSB3210 8052 C with USB Interface and UART m USB Bus From Computer 3.3V Regulator Adjustable Regulator V (2.7V to 5.5V) CC V m C 3.3V S V_USB 5V 8Kx8 Byte EEPROM Buffers and Latches Power Switching V (2.7V to 5.5V) DUT Switched Power I C, SPIControl Bits, andMeasure Bits 2 External Power (6V ) DC R...

Page 17 - Typical Hardware Connections; shows the typical hardware connections.; Figure 10. PGA309EVM-USB Typical Hardware Connections

www.ti.com PGA309EVM-USB Hardware Setup 3.2 Typical Hardware Connections To set up the PGA309EVM-USB hardware, connect the two halves of the EVM together, apply power, andthen connect the external sensor. Figure 10 shows the typical hardware connections. Figure 10. PGA309EVM-USB Typical Hardware Con...

Page 18 - Connecting the Hardware; ). Make sure that the two connectors are completely pushed together; Figure 11. Connecting the Two EVM PCBs

PGA309EVM-USB Hardware Setup www.ti.com 3.3 Connecting the Hardware To connect the two PCBs of the PGA309EVM-USB together, gently push on both sides of the D-SUBconnectors (as shown in Figure 11 ). Make sure that the two connectors are completely pushed together; that is, loose connections may cause...

Page 19 - Connecting Power; After the two parts of the PGA309EVM-USB are connected, as shown in; Figure 12. Connecting Power to the EVM

www.ti.com PGA309EVM-USB Hardware Setup 3.4 Connecting Power After the two parts of the PGA309EVM-USB are connected, as shown in Figure 12 , connect the power to the EVM. Always connect power before connecting the USB cable. If you connect the USB cable beforeconnecting the power, the computer will ...

Page 20 - Connecting the USB Cable to the PGA309EVM-USB; Windows; Figure 13. Connecting the USB Cable

PGA309EVM-USB Hardware Setup www.ti.com 3.5 Connecting the USB Cable to the PGA309EVM-USB Figure 13 shows the typical response to connecting the USB-DAQ-Platform to a PC USB port for the first time. Note that the EVM must be powered on before connecting the USB cable. Typically, the computerwill res...

Page 21 - PGA309EVM-USB Jumper Settings

www.ti.com PGA309EVM-USB Hardware Setup 3.6 PGA309EVM-USB Jumper Settings Figure 14 illustrates the default jumpers configuration for the PGA309_Test_Board. In general, the jumper settings of the USB-DAQ-Platform do not need to be changed. You may want to change some of thejumpers on the PGA309_Test...

Page 22 - Table 4; Jumper

PGA309EVM-USB Hardware Setup www.ti.com Figure 15 shows the default jumpers configuration for the USB-DAQ-Platform. In general, the jumper settings of the USB-DAQ-Platform do not need to be changed. Figure 15. Default Jumper Settings (USB-DAQ-Platform) Table 4 explains the function of the jumpers on...

Page 23 - Table 5; Table 6

www.ti.com PGA309EVM-USB Hardware Setup Table 5 describes the function of the jumpers in the Miscellaneous connections section of the PGA309 Test Board. Table 5. PGA309_Test_Board Jumper Functions: Miscellaneous Connections Jumper Default Purpose JMP1, JMP2 NC For JMP1 = NC, JMP2 = V REF EXT: The RE...

Page 24 - Table 7; Adjusting the value of V; beyond the range of 3V to 5V will damage the EVM.

PGA309EVM-USB Hardware Setup www.ti.com Table 7 explains the function of the USB-DAQ-Platform jumpers. For most applications the default jumper position should be used. A separate document gives details regarding the operation and design of theUSB-DAQ-Platform. Table 7. USB-DAQ-Platform Jumper Setti...

Page 25 - PGA309EVM-USB Software Overview; Operating Systems for PGA309 Software; Follow these steps to install the PGA309EVM-USB software:; Starting the PGA309EVM-USB Software; for a screenshot of how the; Using the PGA309EVM-USB Software

www.ti.com PGA309EVM-USB Software Overview 4 PGA309EVM-USB Software Overview This section discusses how to install and use the PGA309EVM-USB software. 4.1 Operating Systems for PGA309 Software The PGA309EVM-USB software has been tested on the Microsoft Windows XP operating system (OS)with United Sta...

Page 26 - Registers Tab; illustrates the Registers tab.

PGA309EVM-USB Software Overview www.ti.com 4.5 Registers Tab Figure 16 illustrates the Registers tab. Figure 16. PGA309EVM-USB Software: Registers Tab This tab presents a Register Table that shows a summary of the PGA309 device registers. You can selectand toggle various sections of the table by cli...

Page 27 - EEPROM Table Tab; The EEPROM Table tab is shown in

www.ti.com PGA309EVM-USB Software Overview 4.6 EEPROM Table Tab The EEPROM Table tab is shown in Figure 17 . Figure 17. PGA309EVM-USB Software: EEPROM Tab This tab offers a debug utility that allows you to view, load, edit, and save various EEPROM values. Thistab also contains displays for the two d...

Page 28 - Block Diagram Tab; The Block Diagram tab (shown in

PGA309EVM-USB Software Overview www.ti.com 4.7 Block Diagram Tab The Block Diagram tab (shown in Figure 18 ) gives you full access to all the elements in the PGA309. Making a change to the block diagram is reflected in the Register Table (see Section 4.5 ). This feature is helpful when experimenting...

Page 29 - Auto Calibrate Tab; Sensor Definition Functions

www.ti.com PGA309EVM-USB Software Overview 4.8 Auto Calibrate Tab The Auto Calibrate tab is used to calibrate a PGA309 module over temperature. This process can be donewith a real-world sensor or with an emulated sensor. It is recommended that you first become familiar withthe calibration process by...

Page 30 - shows the sensor emulator control tool.

PGA309EVM-USB Software Overview www.ti.com Select the type of temperature sensor that you want to emulate using the Define Temperature SensorModel control. Depending on the type of temperature sensor selected, you may need to provide someadditional information about the sensor (for example, R T resi...

Page 31 - PGA Setup Functions; PGA309 Hardware Connections

www.ti.com PGA309EVM-USB Software Overview 4.8.2 PGA Setup Functions Figure 21 illustrates the PGA Setup sub-tab. Figure 21. PGA309EVM-USB Software: Auto Calibrate Tab—PGA Setup The PGA Setup sub-tab is divided into six sections. Each section is identified as a sequential step: Step 1. PGA309 Hardwa...

Page 32 - Two-Point Calibration and Linearization Functions

PGA309EVM-USB Software Overview www.ti.com 4.8.3 Two-Point Calibration and Linearization Functions The Two-Point Calibration and Linearization sub-tab is illustrated in Figure 22 . Figure 22. PGA309EVM-USB Software: Auto Calibrate Tab—Two-Point Calibration and Linearization This sub-tab performs the...

Page 33 - Temperature Error Compensation Functions; shows the Temperature Error Compensation sub-tab.

www.ti.com PGA309EVM-USB Software Overview 4.8.4 Temperature Error Compensation Functions Figure 23 shows the Temperature Error Compensation sub-tab. Figure 23. PGA309EVM-USB Software: Auto Calibrate Tab—Temperature Error Compensation The Temperature Error Compensation sub-tab is divided into six se...

Page 34 - Post Cal Error Check; The Post Cal Error Check sub-tab is illustrated in

PGA309EVM-USB Software Overview www.ti.com 4.8.5 Post Cal Error Check The Post Cal Error Check sub-tab is illustrated in Figure 24 . Figure 24. PGA309EVM-USB Software: Auto Calibrate Tab—Post Cal Error Check This sub-tab is used to test post-calibration accuracy. This feature only works for the sens...

Page 35 - DMM Options

www.ti.com PGA309EVM-USB Software Overview 4.8.6 DMM Options Figure 25 shows the DMM Options sub-tab. Figure 25. PGA309EVM-USB Software: Auto Calibrate Tab—DMM Options It is possible to use an external digital multimeter (or DMM) to calibrate sensor modules. The currentversion of the PGA309EBM-USB s...

Page 37 - IMPORTANT NOTICE; Products

IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,and other changes to its products and services at any time and to discontinue any product or service without notice. Customers shouldobtain the l...