Texas Instruments PGA309EVM-USB Manuale Utente
User's Guide
SBOU084 – February 2010
PGA309EVM-USB
This user’s guide describes the characteristics, operation, and use of the PGA309EVM-USB evaluation
module (EVM). This EVM is designed to evaluate the performance of the
module (EVM). This EVM is designed to evaluate the performance of the
, a voltage output,
programmable sensor conditioner. This document covers all pertinent areas involved to properly use this
EVM board, allowing for user evaluation suitable to a variety of applications. This document also includes
the physical printed circuit board (PCB) layout and circuit descriptions. A
EVM board, allowing for user evaluation suitable to a variety of applications. This document also includes
the physical printed circuit board (PCB) layout and circuit descriptions. A
is available as a separate download from the TI web site.
Contents
1
Introduction and Overview
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2
System Setup
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3
PGA309EVM-USB Hardware Setup
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4
PGA309EVM-USB Software Overview
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List of Figures
1
Hardware Included with the INA282-286EVM
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2
PGA309EVM-USB Hardware Setup
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3
PGA309_Test_Board Block Diagram
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4
PGA309_Test_Board Schematic: Input Circuitry
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5
PGA309_Test_Board Schematic: Power, Reference, and Digital Connections
....................................
6
PGA309_Test_Board Schematic: Output Circuitry
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7
PGA309_Test_Board Schematic: Sensor Emulator Circuitry
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8
PGA309_Test_Board Connections to USB-DAQ-Platform and EEPROM
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9
Theory of Operation For USB-DAQ-Platform
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10
PGA309EVM-USB Typical Hardware Connections
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11
Connecting the Two EVM PCBs
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12
Connecting Power to the EVM
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13
Connecting the USB Cable
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14
Default Jumper Settings (PGA309_Test_Board)
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15
Default Jumper Settings (USB-DAQ-Platform)
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16
PGA309EVM-USB Software: Registers Tab
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17
PGA309EVM-USB Software: EEPROM Tab
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18
PGA309EVM-USB Software: Block Diagram
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19
PGA309EVM-USB Software: Auto Calibrate Tab—Sensor Definition
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20
PGA309EVM-USB Software: Sensor Emulator Control Panel Tool
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21
PGA309EVM-USB Software: Auto Calibrate Tab—PGA Setup
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22
PGA309EVM-USB Software: Auto Calibrate Tab—Two-Point Calibration and Linearization
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23
PGA309EVM-USB Software: Auto Calibrate Tab—Temperature Error Compensation
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24
PGA309EVM-USB Software: Auto Calibrate Tab—Post Cal Error Check
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25
PGA309EVM-USB Software: Auto Calibrate Tab—DMM Options
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SBOU084 – February 2010
PGA309EVM-USB
Copyright © 2010, Texas Instruments Incorporated