ISLRE-BDGSTKEV2Z

ISLRE-BDGSTKEV2Z Datasheet

Figure 2 shows a simplified schematic of the Strain Gauge design. The design uses Intersil’s ISL28134 chopper amplifier, ISL22316 Digitally Controlled Potentiometer DCP , ISL43741 differential mux, ISL21010 voltage reference, the ISL26102 24-bit delta sigma converter and Renesas R5F10JBC microcontroller.

Part	Datasheet
ISLRE-BDGSTKEV2Z	ISLRE-BDGSTKEV2Z (pdf)

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Application Note 1834 Author Don LaFontaine DAQ on a Stick, Renesas Strain Gauge Introduction The “DAQ on a Stick, Renesas Strain Gauge” is one of a series of reference designs highlighting Intersil’s precision products with different microcontrollers. This reference design is a self contained demo showing a complete signal chain solution using Intersil parts and a Renesas microcontroller. The complete reference design is conveniently housed in a USB stick form factor. This compact design draws power through the USB port and uses a Graphical User Interface GUI to display the real time voltage readings from a bridge strain gauge or a user supplied sensor. Figure 1 shows the Data Acquisition DAQ on a Stick connected to an external foil strain gauge. Figure 2 shows a simplified schematic of the Strain Gauge design. The design uses Intersil’s ISL28134 chopper amplifier, ISL22316 Digitally Controlled Potentiometer DCP , ISL43741 differential mux, ISL21010 voltage reference, the ISL26102 24-bit delta sigma converter and Renesas R5F10JBC microcontroller. FIGURE DAQ ON A STICK WITH STRAIN GAUGE Ordering Information PART NUMBER ISLRE-BDGSTKEV2Z DESCRIPTION Evaluation Board FOIL STRAIN GAUGE VEE VCC Getting Started Installation of the Graphical User Interface GUI Software and USB Drivers The GUI Software and USB drivers have to be installed on a PC running Windows NT/2000/XP/Vista/Win7/Win 8 operating system before connecting the ISLRE-BDGSTKEV2Z evaluation board to the USB port. The software and a quick video on the operation of this application demo can be downloaded or viewed from the Intersil website at Loading Software Click on the Renesas DAQ on a Stick Software link to load the executable. Follow the on-screen instructions to complete the software installation. The installation program places the user interface software in the IntersilRenesasSGDAQonStick directory. To create a shortcut on your desktop, check the “Create A Desktop Icon” box during the software installation. Launch the application by checking the “Launch Intersil Renesas DAQ on Stick” box, then click the “Finish” button. Video Clip A quick video clip is also provided at the above web link. This video will walk the user through the operation and use of the GUI. Running the Evaluation Software After software has been installed, plug the ISLRE-BDGSTKEV2Z board into a USB port on the computer and click on the Intersil DAQ shortcut created in the step above on the desktop. Figure 3 shows the desk top icon. IN1+ IN1- ISL43741 ISL28134 ISL22316 VEE VCC ISL28134 ISL26102 24-BIT ADC ISL21010 TO GUI Renesas MICROCONTROLLER 5V VREF R5F10JBC May 9, 2013 AN1834.0 FIGURE SIMPLIFIED STRAIN GAUGE SCHEMATIC CAUTION These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 \|Copyright Intersil Americas LLC All Rights Reserved Intersil and design is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. Application Note 1834 FIGURE DESKTOP ICON The green LED on the DAQ on a Stick board should be on at this time. When the software starts, the DAQ Startup screen shown in Figure 5 will appear. With the DAQ on a Stick connected, the USB Status indicator will display “Connected 0x2032”. The assigned HID code for this application is 0x2032. This is verification the software is communicating with the board. If the DAQ on a Stick is not connected, or a problem exists with the demo, the message will read “HID Device Not Found”. If this occurs, click on the “Test USB Connection” button to see if this enables the connection. If not, try disconnecting and re-connecting the device or restarting the software. From the DAQ Start-up Screen Figure 5 , the user can click on the Instantaneous Voltage button to get a single voltage reading, select the sensor input they want to measure and adjust the gain of the amplifier, or click the Start button to go to the Measurement Display screen, as shown in Figure At this point the green LED on the board will go off. Connecting the Sensor The ISLRE-BDGSTKEV2Z reference design gives the user the option to measure the strain on a foil gauge supplied with the evaluation board or connect their own sensor and monitor the voltage reading on the GUI screen. The user will select the “Sensor Supplied with the Demo” or “Customer Supplied” sensor by clicking the appropriate radial button at the bottom of Figure The foil gauge is the default value in the GUI with a gain of 115V/V. Figure 4 shows the external connector inputs, which are used to connect the sensor to the circuit shown in Figure FOIL STRAIN GAUGE To connect the foil gauge supplied with the evaluation board, plug the wires into the “S” ports either top row or the bottom row, the columns are connected on the DAQ Stick. Connect the opposite end of the wires to the far edges of the foil gauge board. Reference Figure USER SUPPLIED SENSOR To connect a user supplied sensor, plug the wires into the IN+ and IN- ports shown in Figure 4, then select the “Customer Supplied” option, as shown in Figure This will cause the ISL43741 differential mux to switch the inputs. Once the customer supplied option is selected, the user will have the option of changing the amplifiers’ gain for the best measurement. The DAQ on a Stick also provides a 5V supply and Ground connection for possible use by the customer’s sensor network.

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Application Note 1834

Author Don LaFontaine

DAQ on a Stick, Renesas Strain Gauge

Introduction

The “DAQ on a Stick, Renesas Strain Gauge” is one of a series of reference designs highlighting Intersil’s precision products with different microcontrollers. This reference design is a self contained demo showing a complete signal chain solution using Intersil parts and a Renesas microcontroller. The complete reference design is conveniently housed in a USB stick form factor. This compact design draws power through the USB port and uses a Graphical User Interface GUI to display the real time voltage readings from a bridge strain gauge or a user supplied sensor. Figure 1 shows the Data Acquisition DAQ on a Stick connected to an external foil strain gauge.

Figure 2 shows a simplified schematic of the Strain Gauge design. The design uses Intersil’s ISL28134 chopper amplifier, ISL22316 Digitally Controlled Potentiometer DCP , ISL43741 differential mux, ISL21010 voltage reference, the ISL26102 24-bit delta sigma converter and Renesas R5F10JBC microcontroller.

FIGURE DAQ ON A STICK WITH STRAIN GAUGE
Ordering Information

PART NUMBER ISLRE-BDGSTKEV2Z

DESCRIPTION Evaluation Board

FOIL STRAIN GAUGE

VEE VCC

Getting Started

Installation of the Graphical User Interface GUI Software and USB Drivers

The GUI Software and USB drivers have to be installed on a PC running Windows NT/2000/XP/Vista/Win7/Win 8 operating system before connecting the ISLRE-BDGSTKEV2Z evaluation board to the USB port.

The software and a quick video on the operation of this application demo can be downloaded or viewed from the Intersil website at

Loading Software

Click on the Renesas DAQ on a Stick Software link to load the executable. Follow the on-screen instructions to complete the software installation. The installation program places the user interface software in the IntersilRenesasSGDAQonStick directory. To create a shortcut on your desktop, check the “Create A Desktop Icon” box during the software installation. Launch the application by checking the “Launch Intersil Renesas DAQ on Stick” box, then click the “Finish” button.

Video Clip

A quick video clip is also provided at the above web link. This video will walk the user through the operation and use of the GUI.

Running the Evaluation Software

After software has been installed, plug the ISLRE-BDGSTKEV2Z board into a USB port on the computer and click on the Intersil DAQ shortcut created in the step above on the desktop. Figure 3 shows the desk top icon.

IN1+ IN1-

ISL43741

ISL28134

ISL22316

VEE VCC

ISL28134

ISL26102 24-BIT ADC ISL21010

TO GUI

Renesas MICROCONTROLLER
5V VREF

R5F10JBC

May 9, 2013 AN1834.0

FIGURE SIMPLIFIED STRAIN GAUGE SCHEMATIC

CAUTION These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas LLC All Rights Reserved

Intersil and design is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

Application Note 1834

FIGURE DESKTOP ICON

The green LED on the DAQ on a Stick board should be on at this time. When the software starts, the DAQ Startup screen shown in Figure 5 will appear. With the DAQ on a Stick connected, the USB Status indicator will display “Connected 0x2032”. The assigned HID code for this application is 0x2032. This is verification the software is communicating with the board.

If the DAQ on a Stick is not connected, or a problem exists with the demo, the message will read “HID Device Not Found”. If this occurs, click on the “Test USB Connection” button to see if this enables the connection. If not, try disconnecting and re-connecting the device or restarting the software.

From the DAQ Start-up Screen Figure 5 , the user can click on the Instantaneous Voltage button to get a single voltage reading, select the sensor input they want to measure and adjust the gain of the amplifier, or click the Start button to go to the Measurement Display screen, as shown in Figure At this point the green LED on the board will go off.

Connecting the Sensor

The ISLRE-BDGSTKEV2Z reference design gives the user the option to measure the strain on a foil gauge supplied with the evaluation board or connect their own sensor and monitor the voltage reading on the GUI screen. The user will select the “Sensor Supplied with the Demo” or “Customer Supplied” sensor by clicking the appropriate radial button at the bottom of Figure The foil gauge is the default value in the GUI with a gain
of 115V/V. Figure 4 shows the external connector inputs, which are used to connect the sensor to the circuit shown in Figure FOIL STRAIN GAUGE To connect the foil gauge supplied with the evaluation board,
plug the wires into the “S” ports either top row or the bottom row, the columns are connected on the DAQ Stick. Connect the opposite end of the wires to the far edges of the foil gauge board. Reference Figure USER SUPPLIED SENSOR To connect a user supplied sensor, plug the wires into the IN+ and IN- ports shown in Figure 4, then select the “Customer Supplied” option, as shown in Figure This will cause the ISL43741 differential mux to switch the inputs. Once the customer supplied option is selected, the user will have the option of changing the amplifiers’ gain for the best measurement. The DAQ on a Stick also provides a 5V supply and Ground connection for possible use by the customer’s sensor network.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ISLRE-BDGSTKEV2Z Datasheet file may be downloaded here without warranties.

Datasheet ID: ISLRE-BDGSTKEV2Z 639217