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DS51607A-page ii

©

 2006 Microchip Technology Inc.

Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE

Microchip disclaims all liability

arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, Accuron, 
dsPIC, K

EE

L

OQ

, micro

ID

, MPLAB, PIC, PICmicro, 

PICSTART, PRO MATE, PowerSmart, rfPIC and SmartShunt 
are registered trademarks of Microchip Technology 
Incorporated in the U.S.A. and other countries.

AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB, 
SEEVAL, SmartSensor and The Embedded Control Solutions 
Company are registered trademarks of Microchip Technology 
Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, dsPICDEM, 
dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR, 
FanSense, FlexROM, fuzzyLAB, In-Circuit Serial 
Programming, ICSP, ICEPIC, Linear Active Thermistor, 
MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM, 
PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, 
PowerMate, PowerTool, REAL ICE, rfLAB, rfPICDEM, Select 
Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, 
WiperLock and ZENA are trademarks of Microchip 
Technology Incorporated in the U.S.A. and other countries.

SQTP is a service mark of Microchip Technology Incorporated 
in the U.S.A.

All other trademarks mentioned herein are property of their 
respective companies.

© 2006, Microchip Technology Incorporated, Printed in the 
U.S.A., All Rights Reserved.

 Printed on recycled paper.

Note the following details of the code protection feature on Microchip devices:

Microchip products meet the specification contained in their particular Microchip Data Sheet.

Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the 
intended manner and under normal conditions.

There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our 
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data 
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

Microchip is willing to work with the customer who is concerned about the integrity of their code.

Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not 
mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Microchip received ISO/TS-16949:2002 quality system certification for 

its worldwide headquarters, design and wafer fabrication facilities in 

Chandler and Tempe, Arizona and Mountain View, California in 

October 2003. The Company’s quality system processes and 

procedures are for its PICmicro

®

 

8-bit MCUs, K

EE

L

OQ

®

 

code hopping 

devices, Serial EEPROMs, microperipherals, nonvolatile memory and 

analog products. In addition, Microchip’s quality system for the design 

and manufacture of development systems is ISO 9001:2000 certified.

Содержание PT100 RTD

Страница 1: ...2006 Microchip Technology Inc DS51607A PT100 RTD Evaluation Board User s Guide...

Страница 2: ...k of Microchip Technology Incorporated in the U S A All other trademarks mentioned herein are property of their respective companies 2006 Microchip Technology Incorporated Printed in the U S A All Rig...

Страница 3: ...n 5 1 2 What is the PT100 RTD Evaluation Board 5 1 3 What the PT100 RTD Evaluation Board Kit Includes 5 Chapter 2 Installation and Operation 7 2 1 Introduction 7 2 2 Features 7 2 3 Getting Started 8 2...

Страница 4: ...PT100 RTD Evaluation Board User s Guide DS51607A page iv 2006 Microchip Technology Inc NOTES...

Страница 5: ...board Appendix A Schematic and Layouts Shows the schematic and layout diagrams for the PT100 RTD Evaluation Board Appendix B Bill Of Materials BOM Lists the parts used to build the PT100 RTD Evaluatio...

Страница 6: ...d characters A dialog button Click OK A tab Click the Power tab N Rnnnn A number in verilog format where N is the total number of digits R is the radix and n is a digit 4 b0010 2 hF1 Text in angle bra...

Страница 7: ...nced Flash USB Microcontrollers with nanoWatt Technology DS39632 This data sheet provides detailed information regarding the PIC18F2455 2550 4455 4550 devices TC1070 TC1071 TC1187 Data Sheet 50 mA 100...

Страница 8: ...E Technical Support Development Systems Information Line Customers should contact their distributor representative or field application engineer for support Local sales offices are also available to h...

Страница 9: ...able Gain Amplifier PGA MCP6S26 is used to digitally switch between RTDs and increase the scale up to 32 times The output of the difference amplifier is connected to a 12 bit differential Analog to Di...

Страница 10: ...PT100 RTD Evaluation Board User s Guide DS51607A page 6 2006 Microchip Technology Inc NOTES...

Страница 11: ...face mount RTD to measure the PCB temperature In addition the user can connect and measure an external leaded RTD 2 3 or 4 Wire and configure the corresponding jumper to remotely measure temperature T...

Страница 12: ...2 1 PT100 RTD Evaluation Board Simplified Block Diagram 2 3 1 Hardware Setup 1 Connect the USB cable to PC 2 To measure PCB temperature connect JP1 to Local RTD position and JP2 to RTD position FIGUR...

Страница 13: ...ication as shown in Figure 2 3 FIGURE 2 3 Microsoft Excel Based GUI 2 Select Enable Disable for CH0 or CH1 Channel 0 and Channel 1 respectively 3 Select PGA gain ADC sampling rate and sampling buffer...

Страница 14: ...ifferential ADC MCP3301 The digital data is read using PIC18F2550 and transmitted to PC using a USB interface 2 4 1 1 THE CONSTANT CURRENT SOURCE The constant current source uses a reference voltage o...

Страница 15: ...ted to the differential amplifier The differential amplifier scales the PGA output The difference amplifier gain is shown in Equation 2 1 EQUATION 2 1 DIFFERENCE AMPLIFIER GAIN 2 4 1 3 THE GUI The GUI...

Страница 16: ...PT100 RTD Evaluation Board User s Guide DS51607A page 12 2006 Microchip Technology Inc NOTES...

Страница 17: ...p Technology Inc DS51607A page 13 Appendix A Schematic and Layouts A 1 INTRODUCTION This appendix contains the following schematics and layouts for the PT100 RTD Evaluation Board Board Schematic Board...

Страница 18: ...PT100 RTD Evaluation Board User s Guide DS51607A page 14 2006 Microchip Technology Inc A 2 BOARD SCHEMATIC PAGE 1 M 2 1...

Страница 19: ...Schematic and Layouts 2006 Microchip Technology Inc DS51607A page 15 A 3 BOARD SCHEMATIC PAGE 2 M...

Страница 20: ...PT100 RTD Evaluation Board User s Guide DS51607A page 16 2006 Microchip Technology Inc A 4 BOARD TOP SILK SCREEN LAYER A 5 BOARD TOP LAYER BOARD EDGE BOARD EDGE...

Страница 21: ...Schematic and Layouts 2006 Microchip Technology Inc DS51607A page 17 A 6 BOARD BOTTOM SILK A 7 BOARD BOTTOM LAYER...

Страница 22: ...PT100 RTD Evaluation Board User s Guide DS51607A page 18 2006 Microchip Technology Inc NOTES...

Страница 23: ...SB B 5 pin Cable 3ft phone 316 522 2002 http www store yahoo com ktusasys usbtomib 5pin html sales ktusasys com 1 J4 CONN TERM BLOCK 4POS 5MM PCB Phoenix Contact 1729034 2 JMP1 JMP2 3PIN 100 Straight...

Страница 24: ...1 U3 Rail to Rail Input Output 10 MHz Op Amps Microchip Technology Inc MCP6024 I SL 1 U4 28 40 44 Pin High Performance Enhanced Flash USB microcontrollers with nanoWatt Technology Microchip Technolog...

Страница 25: ...Bill Of Materials BOM 2006 Microchip Technology Inc DS51607A page 21 NOTES...

Страница 26: ...3 China Shenzhen Tel 86 755 8203 2660 Fax 86 755 8203 1760 China Shunde Tel 86 757 2839 5507 Fax 86 757 2839 5571 China Wuhan Tel 86 27 5980 5300 Fax 86 27 5980 5118 China Xian Tel 86 29 8833 7250 Fax...

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