Texas Instruments PGA309EVM-USB manual PGA309TestBoard Signal Definitions and Pinouts

Page 14

System Setup

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2.4PGA309_Test_Board: Signal Definitions and Pinouts

This section provides the signal definitions for the PGA309_Test_Board.

2.4.1J1 (25-Pin Male DSUB)

Table 2 shows the different signals connected to J1 on the PGA309_Test_Board. This table also identifies signals connected to pins on J1 that are not used on the PGA309_Test_Board.

Table 2. J1 Pinout (25-Pin Male DSUB)

Pin on J1

Signal

Used on This EVM

PGA309 Pin

 

 

 

 

1

DAC A

No

 

 

 

 

 

2

DAC B

No

 

 

 

 

 

3

DAC C

No

 

 

 

 

 

4

DAC D

No

 

 

 

 

 

5

ADS1+

No

 

 

 

 

 

6

ADS1-

No

 

 

 

 

 

7

ADS2+

No

 

 

 

 

 

8

ADS2–

No

 

 

 

 

 

9

I2C_SCK

No

 

 

 

 

 

10

I2C_SDA2

No

 

 

 

 

 

11

ONE_WIRE

No

 

 

 

 

 

12

I2C_SCK_ISO

Yes

SCL

 

 

 

 

13

I2C_SDA_ISO

Yes

SDA

 

 

 

 

14

XTR_LOOP+

No

 

 

 

 

 

15

XTR_LOOP–

No

 

 

 

 

 

16

INA–

No

 

 

 

 

 

17

VDUT

Yes

VS

18

VCC

No

 

19

+15v

No

 

 

 

 

 

20

–15v

No

 

 

 

 

 

21

GND

Yes

GND

 

 

 

 

22

SPI_SCK

No

 

 

 

 

 

23

SPI_CS1

No

 

 

 

 

 

24

SPI_DOUT

No

 

 

 

 

 

25

SPI_DIN1

No

 

 

 

 

 

14

PGA309EVM-USB

SBOU084 –February 2010

 

 

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Contents PGA309EVM-USB USB-DAQ-Platform Jumper Settings PGA309EVM-USB Hardware Hardware Included with the INA282-286EVMInformation About Cautions and Warnings Related Documentation from Texas InstrumentsIf You Need Assistance 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 J1 Pinout 25-Pin Male Dsub PGA309TestBoard Signal Definitions and Pinouts1 J1 25-Pin Male Dsub 2 J2 25-Pin Female Dsub J2 Pinout 25-Pin Female DsubElectrostatic Discharge Warning ToPCandPowerSuppliesTheory of Operation for USB-DAQ-Platform 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 EXTOperating Systems for PGA309 Software PGA309EVM-USB Software InstallUsing the PGA309EVM-USB 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 OptionsEVM Warnings and Restrictions Evaluation Board/Kit Important NoticeFCC Warning 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.