MCP3423EV Microchip Technology, MCP3423EV Datasheet

BOARD EVAL 18BIT 2CH ADC MCP3423

MCP3423EV

Manufacturer Part Number
MCP3423EV
Description
BOARD EVAL 18BIT 2CH ADC MCP3423
Manufacturer
Microchip Technology
Datasheets

Specifications of MCP3423EV

Number Of Adc's
1
Number Of Bits
18
Sampling Rate (per Second)
3.75
Data Interface
Serial
Inputs Per Adc
2 Differential
Input Range
±VREF
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 125°C
Utilized Ic / Part
MCP3423
Silicon Manufacturer
Microchip
Application Sub Type
ADC
Kit Application Type
Data Converter
Silicon Core Number
MCP3423
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
MCP3423
Evaluation Board
User’s Guide
© 2008 Microchip Technology Inc.
DS51778A

Related parts for MCP3423EV

MCP3423EV Summary of contents

Page 1

... Microchip Technology Inc. MCP3423 Evaluation Board User’s Guide DS51778A ...

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 Laer ......................................................................................... 25 A.4 Board – Top Metal Layer ............................................................................. 26 A.5 Board – Bottom Layer .................................................................................. 27 A.6 Board – Bottom Metal Layer ........................................................................ 28 Appendix B. Bill of Materials (BOM) Worldwide Sales and Service .................................................................................... 30 © 2008 Microchip Technology Inc. MCP3423 EVALUATION BOARD Table of Contents USER’S GUIDE DS51778A-page iii ...

Page 4

... MCP3423 Evaluation Board User’s Guide NOTES: DS51778A-page iv © 2008 Microchip Technology Inc. ...

Page 5

... Appendix A. “Schematic and Layouts” – shows the schematic and layout diagrams for the MCP3423 Evaluation Board. • Appendix B. “Bill of Materials (BOM)” – lists the parts used to build the MCP3423 Evaluation Board. © 2008 Microchip Technology Inc. MCP3423 EVALUATION BOARD Preface NOTICE TO CUSTOMERS USER’ ...

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

... 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 Interface and On-Board Reference” (DS22088) Preface DS51778A-page 3 ...

Page 8

... MCP3423 Evaluation Board User’s Guide NOTES: DS51778A-page 4 © 2008 Microchip Technology Inc. ...

Page 9

... How to use MCP3423 Evaluation Board with the PICkit Serial Analyzer 1.2 DESCRIPTION OF THE MCP3423 EVALUATION BOARD The MCP3423 Evaluation Board (P/N MCP3423EV) contains a MCP3423 18-Bit ΔΣ Analog-to-Digital Converter (ADC). The MCP3423 is a 2-channel 18 bit delta-sigma ADC device with various configuration options. The board has analog input connection pads and various test pads ...

Page 10

... PICkit Serial Analyzer pin, if you are using an external device code: ‘1101’ , float, or connect any arbitrary voltage Device Address bits and JP2 and JP3 connections : LED D1 turns on when automatically connected to the PC. Make sure DD path applied. The PICkit Serial © 2008 Microchip Technology Inc. ...

Page 11

... W/R W/R bit = “0” for writing, “1” for reading. Note 1: Float: (a) Leave pin without connecting to anything, or (b) apply Addr_Float voltage. 2: See MCP3423 Data Sheet for more details. © 2008 Microchip Technology Inc. Quick Start Instructions SS CAUTION is powered-up. DD ...

Page 12

... Install the PICkit Serial Analyzer software onto your personal computer (PC). 2. Connect the USB cable between the PICkit Serial Analyzer and the PC. 3. Run the PICkit Serial PC Software - it will open to the following GUI: DS51778A-page 8 Personal Computer USB Cable Sensor Input Connectors MCP3423 Evaluation Board © 2008 Microchip Technology Inc. ...

Page 13

... Click the Next button and follow the instructions. 4. Select the Communication Mode type: I2C Master, and click the Next button. FIGURE 1-4: © 2008 Microchip Technology Inc. Quick Start Instructions PICkit Serial Analyzer Configuration Window welcome window. Step 1 - Communication Mode selection. ...

Page 14

... FIGURE 1-5: The MCP3423 device supports the I Note: current version of the PICkit Serial Analyzer supports the 400 kHz only. DS51778A-page 10 2 Step Communication Speed window bus data rate up to 3.4 MHz, but the 2 C bus data rate © 2008 Microchip Technology Inc. ...

Page 15

... JP1 jumper on the MCP3423 Evaluation Board is connected. Case 2: When you use your own V You can also provide your own V test point. In this case, make sure that the JP1 jumper is disconnected. © 2008 Microchip Technology Inc. Quick Start Instructions Step 3 - Device Pullups window. voltage of the MCP3423 Evaluation ...

Page 16

... Click the OK button. You have made all of the PICkit Serial Analyzer Configuration Setups. You are now ready to program the MCP3423 Evaluation Board using the PICkit Serial Analyzer. FIGURE 1-8: DS51778A-page 12 Step 4 - Voltage Source selection window. Configuration Wizard - Finishing step. © 2008 Microchip Technology Inc. ...

Page 17

... Right click the mouse button and an option box appears to the right of your selection. These are the options available for the parameter selected. 3. Select the desired option and delete or insert the parameter box. 4. Keep the parameters in order as shown in Figure 1-10: © 2008 Microchip Technology Inc. Quick Start Instructions 2 C Scripts” column. ...

Page 18

... See MCP3423 Data Sheet for more information on address bit sections. DS51778A-page This means there are two bytes to send 1st Write Byte: Address byte with W/R bit = 1101-1100 2nd Write Byte: 1001-1100 * . You can use different address DD © 2008 Microchip Technology Inc. ...

Page 19

... Click Execute Script button. At this point, the PICkit Serial transmits the I Note: MCP3423 device. The saved file name will appear in “Users I2C Scripts” column, and can be re-used any time by selecting the file name. © 2008 Microchip Technology Inc. Quick Start Instructions (9C Write Command. ...

Page 20

... Detail” column, and try again until the “Busy” LED turns OFF immediately after sending the I command. Zoom-in Write Command with Address bits 2 FIGURE 1-12 Write Command Waveforms for the MCP3423. DS51778A-page Zoom-in Configuration Bits © 2008 Microchip Technology Inc. ...

Page 21

... PC, then insert the MCP3423 EV board to the PICKit Serial about 20 seconds later. NAK Pulse ACK Pulse FIGURE 1-13: Examples when the device is not acknowledging the write command. Send the General Call Latch Command when the V © 2008 Microchip Technology Inc. Quick Start Instructions from the PICKit Serial, there NAK Pulse ACK Pulse is stabilized ...

Page 22

... JP1 and JP2 connectors. See MCP3423 Data Sheet for more information on address bit selections. DS51778A-page This means there is one byte for address Address byte with W/R bit = 1101-1101 * 5 bytes to read * . You DD © 2008 Microchip Technology Inc. ...

Page 23

... Serial Analyzer from your computer and recheck 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 I command. © 2008 Microchip Technology Inc. Quick Start Instructions 5 Bytes 2 ...

Page 24

... Reading Conversion Results: Note that the Input = 0.996V is applied to CH1. The reading indicates the measured value is 0.996 Volts. DS51778A-page 20 5 Bytes Reading Data using a Read Command 5th Byte: Repeated Byte for Configuration byte 15.625 μV LSB ( ) × 63751 ------------------------------------------- - = 0.996 Volts with PGA PGA = 1 © 2008 Microchip Technology Inc. ...

Page 25

... 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 26

... MCP3423 Evaluation Board User’s Guide 1.4 EXPERIMENT FOR CH2 Repeat the instructions from Section 1.3.2 “Creating Script Files” to Section 1.3.4 “Reading the Conversion Data using the PICkit Serial Analyzer” for the input channel 2. DS51778A-page 22 © 2008 Microchip Technology Inc. ...

Page 27

... This appendix contains the following schematics and layouts for the MCP3424 Evalu- ation Board: • Board – Schematic • Board – Top Layer • Board – Top Metal Layer • Board – Bottom Layer • Board – Bottom Metal Layer © 2008 Microchip Technology Inc. MCP3423 EVALUATION BOARD USER’S GUIDE DS51778A-page 23 ...

Page 28

... MCP3423 Evaluation Board User’s Guide A.2 BOARD – SCHEMATIC DS51778A-page 24 © 2008 Microchip Technology Inc. ...

Page 29

... A.3 BOARD – TOP LAYER © 2008 Microchip Technology Inc. Schematic and Layouts DS51778A-page 25 ...

Page 30

... MCP3423 Evaluation Board User’s Guide A.4 BOARD – TOP METAL LAYER DS51778A-page 26 © 2008 Microchip Technology Inc. ...

Page 31

... A.5 BOARD – BOTTOM LAYER © 2008 Microchip Technology Inc. Schematic and Layouts DS51778A-page 27 ...

Page 32

... MCP3423 Evaluation Board User’s Guide A.6 BOARD – BOTTOM METAL LAYER DS51778A-page 28 © 2008 Microchip Technology Inc. ...

Page 33

... CH2+, CH2-, A0, A1, SCL, SDA, GND The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM Note 1: used in manufacturing uses all RoHS-compliant components. © 2008 Microchip Technology Inc. MCP3423 EVALUATION BOARD Description Manufacturer Panasonic Panasonic - ECG Panasonic - ECG Panasonic - ECG ® ...

Page 34

... 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 ...

Related keywords