Texas Instruments PGA309EVM-USB manual USB-DAQ-Platform Jumper Settings, JUMP1 EXT

Page 24

PGA309EVM-USB Hardware Setup

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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 the USB-DAQ-Platform.

Table 7. USB-DAQ-Platform Jumper Settings

Jumper

Default

Purpose

 

 

 

JUMP1

EXT

This jumper selects external power or bus power. External

 

 

power is applied on J5 or T3 (9V dc). Bus power is 5V from the

 

 

USB bus. External power is typically used because the USB bus

 

 

power is noisy.

 

 

 

JUMP2

EXT

Same as JUMP1.

 

 

 

JUMP3

EE ON

This jumper determines where the PGA309 gets its power

 

 

supply. In the VDUT position, the EVM provides power. The

 

 

default is the VDUT position. In the VS_Ext position, the power is

 

 

connected externally.

 

 

 

JUMP4, JUMP5

L, L

This jumper sets the address for the USB board. The only

 

 

reason to change from the default is if multiple boards are being

 

 

used.

 

 

 

JUMP9

5V

This jumper selects the voltage of the device under test supply

 

 

(VDUT = 5V or 3V)

JUMP10

WP ON

This jumper write-protects the firmware EEPROM.

 

 

 

JUMP11

WP ON

This jumper write-protects the calibration EEPROM

 

 

 

JUMP13

Reg

This jumper configures the regulator output to generate the VDUT

 

 

supply. The USB bus can be used as the VDUT supply.

JUMP14

9V

This jumper configures the external power (9V as apposed to

 

 

the bus)

 

 

 

JUMP17

BUS

While in the BUS position VDUT operation is normal. While in the

 

 

VRAW position, the VDUT supply is connected to an external

 

 

source. This allows for any value of VDUT between 3V and 5V.

JUMP18

VDUT

Connects the pull-up resistor on GPIO to the VDUT supply or the

 

 

VCC supply.

CAUTION

Adjusting the value of VDUT beyond the range of 3V to 5V will damage the EVM.

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PGA309EVM-USB

SBOU084 –February 2010

 

 

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Copyright © 2010, Texas Instruments Incorporated

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Contents PGA309EVM-USB USB-DAQ-Platform Jumper Settings PGA309EVM-USB Hardware Hardware Included with the INA282-286EVMRelated Documentation from Texas Instruments If You Need AssistanceInformation About Cautions and Warnings PGA309EVM-USB Hardware Setup Theory of Operation for PGA309TestBoard HardwarePGA309TestBoard Connections PGA309TestBoard Schematic Input Circuitry System Setup PGA309TestBoard Schematic Output Circuitry PGA309TestBoard Schematic Sensor Emulator Circuitry PGA309TestBoard Connections to USB-DAQ-Platform and Eeprom PGA309TestBoard Parts List PGA309 Test Board Parts ListJMP1, JMP2, JMP3, JMP4 PGA309TestBoard Signal Definitions and Pinouts 1 J1 25-Pin Male DsubJ1 Pinout 25-Pin Male Dsub 2 J2 25-Pin Female Dsub J2 Pinout 25-Pin Female DsubToPCandPowerSupplies Theory of Operation for USB-DAQ-PlatformElectrostatic Discharge Warning USBDAQPlatformTypical Hardware Connections PGA309EVM-USB Typical Hardware ConnectionsConnecting the Hardware Connecting the Two EVM PCBsConnecting Power Connecting Power to the EVMConnecting the USB Cable to the PGA309EVM-USB Connecting the USB CablePGA309EVM-USB Jumper Settings Default Jumper Settings PGA309TestBoardDefault Jumper Settings USB-DAQ-Platform PGA309TestBoard Jumper Functions GeneralPGA309TestBoard Jumper Functions Miscellaneous Connections PGA309TestBoard Jumper Functions Sensor Emulator SectionUSB-DAQ-Platform Jumper Settings JUMP1 EXTPGA309EVM-USB Software Install Using the PGA309EVM-USB SoftwareOperating Systems for PGA309 Software Starting the PGA309EVM-USB SoftwareRegisters Tab PGA309EVM-USB Software Registers TabEeprom Table Tab PGA309EVM-USB Software Eeprom TabBlock Diagram Tab PGA309EVM-USB Software Block DiagramAuto Calibrate Tab Sensor Definition FunctionsPGA309EVM-USB Software Sensor Emulator Control Panel Tool PGA Setup Functions PGA309EVM-USB Software Auto Calibrate Tab-PGA SetupTwo-Point Calibration and Linearization Functions Temperature Error Compensation Functions Shows the Temperature Error Compensation sub-tabPost Cal Error Check DMM Options PGA309EVM-USB Software Auto Calibrate Tab-DMM OptionsEvaluation Board/Kit Important Notice FCC WarningEVM Warnings and Restrictions Important Notice

PGA309EVM-USB specifications

The Texas Instruments PGA309EVM-USB is an Evaluation Module designed specifically for the PGA309 Precision Analog Front End (AFE) family. This versatile and powerful device serves various applications in the realm of sensor signal conditioning, particularly for pressure sensors, temperature sensors, and other analog sensors requiring high precision.

One of the main features of the PGA309EVM-USB is its high-performance PGA309 device, which incorporates a programmable gain amplifier (PGA) allowing for flexible signal amplification. The PGA309 has a gain range from 1 to 128, enabling it to adapt to a wide array of sensor types and output levels. This flexibility is crucial for achieving optimal performance in diverse applications.

The module also leverages advanced analog and digital processing technologies, which enhance its capabilities. It integrates an onboard microcontroller, allowing users to easily configure settings, execute control algorithms, and manage data acquisition. The built-in USB interface simplifies the communication with a PC, making it straightforward to control the EVM through intuitive software provided by Texas Instruments.

Another significant characteristic of the PGA309EVM-USB is its highly accurate signal conditioning features, such as offset and gain calibration, which ensure minimized errors and improved measurement reliability. The device supports a variety of digital output configurations, including I2C and SPI, to allow easy integration into different system architectures.

In addition to its robust signal processing core, the PGA309EVM-USB is designed with user-friendly interfaces, making it suitable for both experienced engineers and those new to sensor design. The comprehensive software toolkit offers a graphical user interface (GUI) that enables real-time monitoring and adjustment of parameters, ensuring users can optimize their applications.

Furthermore, the device is designed for functionality in harsh environments, incorporating features to withstand temperature variations and electrical noise. This reliability adds value for applications in industrial automation, automotive systems, and medical devices.

In summary, the Texas Instruments PGA309EVM-USB stands out as a powerful tool for engineers looking to design and prototype high-precision sensor signal conditioning applications. With its programmable gain amplifier, advanced processing capabilities, and user-friendly interfaces, it represents a significant advancement in the field of analog signal processing, allowing for greater flexibility and accuracy in diverse applications.