MCP3422EV Microchip Technology, MCP3422EV Datasheet

BOARD EVAL MCP3422 PICKIT SERIAL

MCP3422EV

Manufacturer Part Number
MCP3422EV
Description
BOARD EVAL MCP3422 PICKIT SERIAL
Manufacturer
Microchip Technology
Series
PICkit™r
Datasheets

Specifications of MCP3422EV

Number Of Adc's
2
Number Of Bits
18
Sampling Rate (per Second)
3.75
Data Interface
Serial
Inputs Per Adc
1 Differential
Input Range
±2.048 V
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 125°C
Utilized Ic / Part
MCP3422
Silicon Manufacturer
Microchip
Application Sub Type
ADC
Kit Application Type
Data Converter
Silicon Core Number
MCP3422
Kit Contents
Board, Software
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
MCP3422
Evaluation Board
for PICkit™ Serial
User’s Guide
© 2008 Microchip Technology Inc.
DS51781A

Related parts for MCP3422EV

MCP3422EV Summary of contents

Page 1

... Microchip Technology Inc. MCP3422 Evaluation Board for PICkit™ Serial User’s Guide DS51781A ...

Page 2

... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, 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. ...

Page 3

... A.3 Board – Top Layer ....................................................................................... 23 A.4 Board – Top Metal Layer ............................................................................. 24 A.5 Board – Bottom Layer ................................................................................. 25 Appendix B. Bill Of Materials (BOM) Worldwide Sales and Service .................................................................................... 28 © 2008 Microchip Technology Inc. MCP3422 EVALUATION BOARD FOR PICkit™ SERIAL USER’S GUIDE Table of Contents DS51781A-page iii ...

Page 4

... MCP3422 Evaluation Board for PICkit™ Serial User’s Guide NOTES: DS51781A-page iv © 2008 Microchip Technology Inc. ...

Page 5

... Appendix A. “Schematic and Layouts” – shows the schematic and layout diagrams for the MCP3422 Evaluation Board. • Appendix B. “Bill Of Materials (BOM)” – lists the parts used to build the MCP3422 Evaluation Board. © 2008 Microchip Technology Inc. MCP3422 EVALUATION BOARD FOR PICkit™ SERIAL USER’S GUIDE Preface ...

Page 6

... Optional arguments mcc18 [options] file [options] Choice of mutually exclusive errorlevel {0|1} arguments selection Replaces repeated text var_name [, var_name...] Represents code supplied by void main (void) user { ... } © 2008 Microchip Technology Inc. Examples ® IDE User’s Guide ...

Page 7

... Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document. Technical support is available through the web site at: http://support.microchip.com DOCUMENT REVISION HISTORY Revision A (November 2008) • Initial Release of this Document. © 2008 Microchip Technology Inc. Preface DS51781A-page 3 ...

Page 8

... MCP3422 Evaluation Board for PICkit™ Serial User’s Guide NOTES: DS51781A-page 4 © 2008 Microchip Technology Inc. ...

Page 9

... How to use the MCP3422 Evaluation Board with the PICkit Serial Analyzer 1.2 DESCRIPTION OF THE MCP3422 EVALUATION BOARD The MCP3422 Evaluation Board (P/N MCP3422EV) contains a MCP3422 18-Bit Delta-Sigma Analog-to-Digital Converter (ADC). The MCP3422 is a 2-channel ADC device with various options. The MCP3422 Evaluation Board has analog input ...

Page 10

... PICkit Serial Analyzer or you can DD . The JP1 connector selects the V DD from PICkit Serial Analyzer VDD1 pin, if you are using an external LED D1 turns on when V is applied. The PICkit Serial DD DD automatically connected to the PC. Make sure path © 2008 Microchip Technology Inc. ...

Page 11

... Connected between the PICkit Serial analyzer and Personal Computer PICkit Serial Analyzer Sensor Input Connectors FIGURE 1-2: MCP3422 Evaluation Board with the PICkit Serial Analyzer. © 2008 Microchip Technology Inc. Quick Start Instructions 2 CAUTION is powered-up. DD Personal Computer MCP3422 Evaluation Board C write and read commands. ...

Page 12

... Connect the USB cable between the PICkit Serial Analyzer and the PC. 3. Run the PICkit Serial PC Software. The following graphic user interface (GUI) will appear. FIGURE 1-3: Click the Next button and follow the instructions. DS51781A-page 8 PICkit Serial Analyzer Configuration Wizard Welcome Window. © 2008 Microchip Technology Inc. ...

Page 13

... Select 100 kHz or 400 kHz. Either one will be fine. Click the Next button. FIGURE 1-5: Note: The MCP3422 device supports the I current version of the PICkit Serial Analyzer supports the 400 kHz only. © 2008 Microchip Technology Inc. Quick Start Instructions Step 1 - Communication Mode Selection. 2 Step Communication Speed Window. ...

Page 14

... You can also provide your own V test point. In this case, make sure that the JP1 jumper is disconnected. DS51781A-page 10 Step 3 - Device Pullups Window. voltage of the MCP3422 Evaluation Board and click the Next DD from the PICkit Serial Analyzer voltage by applying voltage at the VD1 DD © 2008 Microchip Technology Inc. ...

Page 15

... Click the OK button. You have made all the PICkit Serial Analyzer configuration setups. You are now ready to program the MCP3422 Evaluation Board using the PICkit Serial Analyzer. FIGURE 1-8: © 2008 Microchip Technology Inc. Quick Start Instructions Step 4 - Voltage Source Selection Window. Configuration Wizard - Finishing Step. ...

Page 16

... Right-click the mouse button and an option box appears to the right of your selection, displaying the options available for the selected parameter. 3. Select the desired option and delete or insert the parameter box. 4. Keep the parameters in the order shown in Figure 1-10. DS51781A-page Scripts” column. © 2008 Microchip Technology Inc. ...

Page 17

... I2CSTOP Note: All 6 parameters above must be listed in the same order as shown here. The parameters above with * are not modifiable. © 2008 Microchip Technology Inc. Quick Start Instructions * * ------> This means there are two bytes to send ------> 1st Write Byte: Address byte with W/R bit = 1101-0000 ------> ...

Page 18

... Configuration Byte Note: The “9C” in the configuration byte selects the following options: - Conversion Mode: Continuous Conversion - Channel Selection: Channel 1 - Bit Resolution: 18 bits - Gain Selection: 1x FIGURE 1-11: Script File Example for the I DS51781A-page 14 (9C Write Command. © 2008 Microchip Technology Inc. ...

Page 19

... LED turns OFF immediately after sending the I2C command. REDUE THIS PLOT WITY CORRECT Zoom-in Write Command with Address bits 2 FIGURE 1-12 Write Command Waveforms for the MCP3422. © 2008 Microchip Technology Inc. Quick Start Instructions 2 C Write Command to the Zoom-in Configuration Bits DS51781A-page 15 ...

Page 20

... All 7 parameters above must be listed in order. The parameters above with * are not modifiable. Address Byte Requesting 5 Bytes FIGURE 1-13: Script File Sample to Read Conversion Data. DS51781A-page ------> This means there is one byte for address ------> Address byte with W/R bit = 1101-0001 * ------> 5 bytes to read * © 2008 Microchip Technology Inc. ...

Page 21

... Serial Analyzer from your computer and re-check the parameter values, including the order of parameters under the “Script Detail” column, and try again until the “Busy” LED turns OFF immediately after sending the I2C command. © 2008 Microchip Technology Inc. Quick Start Instructions 2 C Read Command to the ...

Page 22

... Volts. DS51781A-page 18 5 Bytes Reading Data using a Read Command 5th Byte: Repeated Byte for Configuration byte F907 in hex ( = 63751 in decimal) 15.625 μV LSB ( ) × ------------------------------------------- - 63751 = 0.996 Volts with PGA PGA = 1 © 2008 Microchip Technology Inc. ...

Page 23

... The RDY bit becomes “1” in the 5th byte (repeated byte). This means the device is now in the process of new conversion and the new result is not ready yet. © 2008 Microchip Technology Inc. Quick Start Instructions Zoom-in ...

Page 24

... Note: To write the configuration register for channel 2 input, you can just use the “MCP3422_Write” file and modify the configuration byte data only. To read the conversion data, use the same script file for all channels. DS51781A-page 20 © 2008 Microchip Technology Inc. ...

Page 25

... This appendix contains the following schematics and layouts for the MCP3422 Evaluation Board: • Board – Schematic • Board – Top Layer • Board – Top Metal Layer • Board – Bottom Layer © 2008 Microchip Technology Inc. MCP3422 EVALUATION BOARD FOR PICkit™ SERIAL USER’S GUIDE DS51781A-page 21 ...

Page 26

... MCP3422 Evaluation Board for PICkit™ Serial User’s Guide A.2 BOARD SCHEMATIC DS51781A-page 22 © 2008 Microchip Technology Inc. ...

Page 27

... A.3 BOARD – TOP LAYER © 2008 Microchip Technology Inc. Schematic and Layouts DS51781A-page 23 ...

Page 28

... MCP3422 Evaluation Board for PICkit™ Serial User’s Guide A.4 BOARD – TOP METAL LAYER DS51781A-page 24 © 2008 Microchip Technology Inc. ...

Page 29

... A.5 BOARD – BOTTOM LAYER © 2008 Microchip Technology Inc. Schematic and Layouts DS51781A-page 25 ...

Page 30

... MCP3422 Evaluation Board for PICkit™ Serial User’s Guide NOTES: DS51781A-page 26 © 2008 Microchip Technology Inc. ...

Page 31

... CH2-, SDA, SCL, GND Note: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components. © 2008 Microchip Technology Inc. MCP3422 EVALUATION BOARD FOR PICkit™ SERIAL USER’S GUIDE Description Manufacturer Panasonic® ...

Page 32

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2008 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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