MCP6XXX Amplifier
Evaluation Board 3
User’s Guide
© 2007 Microchip Technology Inc.
DS51673A
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DS51673A-page ii
© 2007 Microchip Technology Inc.
MCP6XXX AMPLIFIER EVALUATION
BOARD 3 USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 1
Introduction............................................................................................................ 1
Document Layout .................................................................................................. 1
Conventions Used in this Guide ............................................................................ 2
Recommended Reading........................................................................................ 3
The Microchip Web Site ........................................................................................ 3
Customer Support ................................................................................................. 3
Document Revision History ................................................................................... 3
Chapter 1. Product Overview ....................................................................................... 5
1.1 Introduction ..................................................................................................... 5
1.2 MCP6XXX Amplifier Evaluation Board 3 Kit Contents ................................... 5
1.3 Microchip’s Web-Based Mindi™ Analog Simulator Tool ................................ 6
1.4 MCP6XXX Amplifier Evaluation Board 3 Description ..................................... 6
Chapter 2. Installation and Operation ......................................................................... 7
2.1 Introduction ..................................................................................................... 7
2.2 Required Tools ............................................................................................... 7
2.3 MCP6XXX Amplifier Evaluation Board 3 Set-up ............................................ 7
2.4 MCP6XXX Amplifier Evaluation Board 3 Operation ..................................... 13
Appendix A. Schematic and Layouts ........................................................................ 23
A.1 Introduction .................................................................................................. 23
A.2 Board - Schematic ....................................................................................... 24
A.3 Board - Top Silk Layer .............................................................................. 25
A.4 Board - Top Trace And Silk .......................................................................... 26
A.5 Board - Bottom Layer ................................................................................... 27
Appendix B. Bill of Materials (BOM) .......................................................................... 29
B.1 MCP6XXX Amplifier Evaluation Board 3 BOM ............................................ 29
Worldwide Sales and Service .................................................................................... 32
© 2007 Microchip Technology Inc.
DS51673A-page iii
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
NOTES:
DS51673A-page iv
© 2007 Microchip Technology Inc.
MCP6XXX AMPLIFIER EVALUATION
BOARD 3 USER’S GUIDE
Preface
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs
and/or tool descriptions may differ from those in this document. Please refer to our web site
(www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the page number. The numbering convention for the DS number is
“DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the
document.
For the most up-to-date information on development tools, see the MPLAB® IDE on-line help.
Select the Help menu, and then Topics to open a list of available on-line help files.
INTRODUCTION
This chapter contains general information that will be useful to know before using the
MCP6XXX Amplifier Evaluation Board 3. Items discussed in this chapter include:
•
•
•
•
•
•
Document Layout
Conventions Used in this Guide
Recommended Reading
The Microchip Web Site
Customer Support
Document Revision History
DOCUMENT LAYOUT
This document describes how to use the MCP6XXX Amplifier Evaluation Board 3. The
manual layout is as follows:
• Chapter 1. “Product Overview” - Provides the important information about the
MCP6XXX Amplifier Evaluation Board 3.
• Chapter 2. “Installation and Operation” – Covers the installation and operation
of the MCP6XXX Amplifier Evaluation Board 3. It lists the required tools, shows
how to set up the board, and demonstrates how to verify the amplifier operation.
• Appendix A. “Schematic and Layouts” – Shows the schematic and board
layouts for the MCP6XXX Amplifier Evaluation Board 3.
• Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the
MCP6XXX Amplifier Evaluation Board 3.
© 2007 Microchip Technology Inc.
DS51673A-page 1
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description
Arial font:
Italic characters
Represents
Referenced books
Emphasized text
A window
A dialog
A menu selection
A field name in a window or
dialog
A menu path
MPLAB® IDE User’s Guide
...is the only compiler...
the Output window
the Settings dialog
select Enable Programmer
“Save project before build”
A dialog button
A tab
A number in verilog format,
where N is the total number of
digits, R is the radix and n is a
digit.
A key on the keyboard
Click OK
Click the Power tab
4‘b0010, 2‘hF1
Italic Courier New
Sample source code
Filenames
File paths
Keywords
Command-line options
Bit values
Constants
A variable argument
Square brackets [ ]
Optional arguments
Curly brackets and pipe
character: { | }
Ellipses...
Choice of mutually exclusive
arguments; an OR selection
Replaces repeated text
#define START
autoexec.bat
c:\mcc18\h
_asm, _endasm, static
-Opa+, -Opa0, 1
0xFF, ‘A’
file.o, where file can be
any valid filename
mcc18 [options] file
[options]
errorlevel {0|1}
Initial caps
Quotes
Underlined, italic text with
right angle bracket
Bold characters
N‘Rnnnn
Text in angle brackets < >
Courier New font:
Plain Courier New
Represents code supplied by
user
DS51673A-page 2
Examples
File>Save
Press <Enter>, <F1>
var_name [,
var_name...]
void main (void)
{ ...
}
© 2007 Microchip Technology Inc.
Preface
RECOMMENDED READING
This user's guide describes how to use MCP6XXX Amplifier Evaluation Board 3. Other
useful documents are listed below. The following Microchip documents are available
and recommended as supplemental reference resources.
MCP6021/2/3/4 Data Sheet, “Rail-to-Rail Input/Output, 10 MHz Op Amps”
(DS21685)
This data sheet provides detailed information regarding the MCP602X product family.
THE MICROCHIP WEB SITE
Microchip provides online support via our web site at www.microchip.com. This web
site is used as a means to make files and information easily available to customers.
Accessible by using your favorite Internet browser, the web site contains the following
information:
• Product Support – Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents,
latest software releases and archived software
• General Technical Support – Frequently Asked Questions (FAQs), technical
support requests, online discussion groups, Microchip consultant program
member listing
• Business of Microchip – Product selector and ordering guides, latest Microchip
press releases, listing of seminars and events, listings of Microchip sales offices,
distributors and factory representatives
CUSTOMER SUPPORT
Users of Microchip products can receive assistance through several channels:
•
•
•
•
•
Distributor or Representative
Local Sales Office
Field Application Engineer (FAE)
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 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 (July 2007)
• Initial Release of this Document.
© 2007 Microchip Technology Inc.
DS51673A-page 3
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
NOTES:
DS51673A-page 4
© 2007 Microchip Technology Inc.
MCP6XXX AMPLIFIER EVALUATION
BOARD 3 USER’S GUIDE
Chapter 1. Product Overview
1.1
INTRODUCTION
The MCP6XXX Amplifier Evaluation Board 3 is described by the following:
• Assembly # : 114-00153
• Order # : MCP6XXXEV-AMP3
• Name: MCP6XXX Amplifier Evaluation Board 3
Items discussed in this chapter include:
• Section 1.2 “MCP6XXX Amplifier Evaluation Board 3 Kit Contents”
• Section 1.3 “Microchip’s Web-Based Mindi™ Analog Simulator Tool”
• Section 1.4 “MCP6XXX Amplifier Evaluation Board 3 Description”
1.2
MCP6XXX AMPLIFIER EVALUATION BOARD 3 KIT CONTENTS
•
•
•
•
MCP6XXX Amplifier Evaluation Board 3 - One partially assembled board
Important Information “Read First”
Accessory Bag - Contains loose parts for populating sockets on board
Analog and Interface Products Demonstration Boards CD-ROM (DS21912)
- MCP6XXX Amplifier Evaluation Board 3 User’s Guide (DS51673)
FIGURE 1-1:
© 2007 Microchip Technology Inc.
MCP6XXX Amplifier Evaluation Board 3 Kit.
DS51673A-page 5
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
1.3
MICROCHIP’S WEB-BASED MINDI™ ANALOG SIMULATOR TOOL
The Mindi™ Analog Simulator tool is an innovative software tool that simplifies analog
circuit design. The Mindi™ Analog Simulator tool supports the following application
circuits: 1) Active Filters, 2) Amplifiers, 3) Battery Chargers, and 4) DC-to-DC
Converters. The Amplifier Designer provides full schematic diagrams of the amplifier
application circuit with recommended component values and displays the responses in
frequency and time domains.
The Mindi™ Analog Simulator tool is a free web-based design tool available on the
Microchip web site at http://www.microchip.com under “Online Simulation Tools” or
by going directly to the Mindi web site at http://www.microchip.com/mindi. The circuit
simulator within the Mindi™ Analog Simulator tool can be downloaded and installed on
a personal computer (PC) for more convenient simulations. Modified circuit files can
also be downloaded to the PC.
1.4
MCP6XXX AMPLIFIER EVALUATION BOARD 3 DESCRIPTION
MCP6XXX Amplifier Evaluation Board 3 is intended to support the difference amplifier
circuits which are generated by the Mindi™ Amplifier Designer.
The MCP6XXX Amplifier Evaluation Board 3 has the following features:
• All amplifier resistors and capacitors are socketed
• All of the component labels on board keep consistent with those on schematic
generated in the Mindi™ Amplifier Designer
• Supports all Microchip single op amps
- PDIP-8 package (e.g., MCP6021) are socketed
- SOIC-8 package can be accomodated; see Section 2.4.3 “Amplifier
Modifications Using 8-Pin SOIC Op Amps”
• Test points for connecting lab equipment
• Single supply configuration
Figure 1-2 shows the block diagram of the MCP6XXX Amplifier Evaluation Board 3.
Lab equipment can be attached (via test points) to measure the amplifier response.
Mid-Supply Ref
and
Test Point
Power Supply
and
Test Point
Amplifier Circuit
(Op Amp, Resistors
Capacitors)
Signal Inputs
and
Test Points
Source
Configuration
FIGURE 1-2:
DS51673A-page 6
Signal Output
and Test Point
MCP6XXX Amplifier Evaluation Board 3 Block Diagram.
© 2007 Microchip Technology Inc.
MCP6XXX AMPLIFIER EVALUATION
BOARD 3 USER’S GUIDE
Chapter 2. Installation and Operation
2.1
INTRODUCTION
This chapter shows how to set up the MCP6XXX Amplifier Evaluation Board 3.
Items discussed in this chapter include:
• Required Tools
• MCP6XXX Amplifier Evaluation Board 3 Set-Up
• MCP6XXX Amplifier Evaluation Board 3 Operation
2.2
REQUIRED TOOLS
• Lab power supply
• Lab signal source (e.g., function generator)
• Lab measurement equipment (e.g., oscilloscope)
2.3
MCP6XXX AMPLIFIER EVALUATION BOARD 3 SET-UP
The MCP6XXX Amplifier Evaluation Board 3 supports difference amplifier. This section
details the conversion of these topologies to the MCP6XXX Amplifier Evaluation Board
3. Figure 2-1 shows the circuit diagram for the board.
*
GND
Mid-supply
Reference
Block
*
* Test Points
VREF
VDD
VDD
R3
VA
0.1 µF
R4
*
Power Supply
*
CU1
CP1
1.0 µF
U1
R1
Source
Configuration
Block
*
CL
RL
GND
VL
*
© 2007 Microchip Technology Inc.
*
FIGURE 2-1:
RISO
1
2
3
VB
GND
R2
*
DP1
MCP6XXX Amplifier Evaluation Board 3 Circuit Diagram.
DS51673A-page 7
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
The power supply voltage needs to be in the allowed range for the installed op amps.
Any of Microchip’s op amps that operate below 5.5V can be used. Moreover, the power
supply is protected by a zener diode with nominal voltage 6.2V and bypassed by a
1.0 µF capacitor. (See Figure 2-3: “Power Supply Block.”)
The mid-supply reference consists of a voltage divider and a buffer amplifier. (See
Figure 2-4: “Mid-Supply Reference Block.”)
The resistors that are part of an amplifier are placed in pin sockets which are labeled.
All of the component labels on board keep consistent with those on the schematic
generated in the Mindi™ Amplifier Designer. The op amps are bypassed by 0.1 µF
capacitors and the single op amp U1 can have either a PDIP-8 or SOIC-8 package.
• PDIP-8 packages are inserted into the DIP-8 socket to the right of the U1 label
• SOIC-8 packages can be accommodated; see Section 2.4.3 “Amplifier
Modifications Using 8-Pin SOIC Op Amps”
The (surface mount) test points for power supply, ground, input signal and output signal
allow lab equipment to be connected to the board. The MCP6XXX Amplifier Evaluation
Board 3 top view is shown in Figure 2-2.
FIGURE 2-2:
DS51673A-page 8
MCP6XXX Amplifier Evaluation Board 3 Top View.
© 2007 Microchip Technology Inc.
Installation and Operation
2.3.1
Top Level Amplifier Circuit Diagrams
2.3.1.1
POWER SUPPLY BLOCK
The power supply is protected by a zener diode and bypassed by a capacitor.
Figure 2-3 shows the circuit diagram for the power supply. CP1 = 1.0 µF.
VS
Power Supply
VDD
CP1
DP1
Note:
FIGURE 2-3:
2.3.1.2
DP1 is a zener diode with nominal voltage of 6.2V
Power Supply Block.
MID-SUPPLY REFERENCE BLOCK
The mid-supply reference consists of a voltage divider and a buffer amplifier. Figure 2-4
shows the circuit diagram for the mid-supply reference.
CR1 = CR2 = 0.1 µF, RR1 = RR2 = 20.0 kΩ.
Mid-supply Reference
VDD
RR1
CR2
FIGURE 2-4:
© 2007 Microchip Technology Inc.
RR2
CR1
UR1
VR
Mid-Supply Reference Block.
DS51673A-page 9
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
2.3.1.3
OUTPUT LOAD BLOCK
The output load consists of a capacitor and two resistors. Figure 2-5 shows the circuit
diagram for the output load. RISO is used to stabilize the amplifier when it drives a large
capacitive load (CL). RISO is a short circuit (0Ω) when CL is small.
VOUT
Output Load
RISO
VL
RL
FIGURE 2-5:
DS51673A-page 10
CL
Output Load Block.
© 2007 Microchip Technology Inc.
Installation and Operation
2.3.1.4
DIFFERENCE AMPLIFIER
• Amplifies the difference between two voltages, while rejecting the common mode
(average) input voltage. Output voltage is shifted by a reference voltage for single
supply
• The Mindi™ Amplifier Designer gives design recommendations for the difference
amplfier circuit; see the circuit diagram shown in Figure 2-6
- Fill the sockets with the recommended resistors and capacitors
VS
VDD
V1
Source
Configuration
VA
FIGURE 2-6:
R4
VR
VR
Mid-supply
Reference
Power
Supply
C1
VOUT
U1
V2
VB
R3
R1
Output
Load
VL
R2
Difference Amplifier Circuit Diagram.
• Source configuration consists of an inverting amplifier and a jumper. Figure 2-4
shows the circuit diagram for the source configuration.
CS1 = 0.1 uF, RS1 = RS2 = 20.0 kΩ, RS3 = 10.0 kΩ
VDD
Source Configuration
V1
VA
RS3
US1
RS1
© 2007 Microchip Technology Inc.
JPS1
RS2
#1
#2
#3
VB
FIGURE 2-7:
VR
CS1
V2
Source Configuration Block.
DS51673A-page 11
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
The jumper JPS1 positions have the following effects:
Jumper JPS1
Position
Effects
V1 =
V2 =
1
VA
VA
VA is a common mode input signal
2
VA
–VA
VA is a diffential mode input signal
3
VA
VB
VA and VB are connected directly to V1 and V2
Note 1:
When JPS1 is in position 2, V2 is actually described by the following equation:
V 2 = V R – ( V A – V R ) ( R S2 ⁄ R S1 )
= V R ( 1 + R S2 ⁄ R S1 ) – V A ( R S2 ⁄ R S1 )
It is assumed that RS2 = RS1.
Figure 2-8 shows an example supported by the MCP6XXX Amplifier Evaluation Board
3. It is assumed that VA is a differential mode input signal.
*
GND
Mid-supply
Reference
Block
*
* Test Points
VREF
VDD
VDD
R3
VA
0.1 µF
R4
*
Power Supply
*
CU1
CP1
1.0 µF
U1
R1
Source
Configuration
Block
*
CL
RL
GND
VL
*
*
RISO
1
2
3
VB
GND
R2
*
DP1
FIGURE 2-8:
Difference Amplifier Example Supported by the MCP6XXX
Amplifier Evaluation Board 3.
DS51673A-page 12
© 2007 Microchip Technology Inc.
Installation and Operation
2.4
MCP6XXX AMPLIFIER EVALUATION BOARD 3 OPERATION
Items discussed in this section include:
• Building the Amplifier
• Testing the Amplifier
• Amplifier Modification: Using 8-Pin SOIC Op Amps
2.4.1
Building the Amplifier
The accessory bag that comes with this kit makes it quick and easy to evaluate the
amplifier described below, which was designed in the Mindi™ Amplifier Designer.
This amplifier is described as follows:
•
•
•
•
•
Difference Amplifier (Single Supply Configuration)
Power Supply Voltage is 5.0V
Differential Mode Input Signal
Desired Closed Loop Gain is 1 V/V
Load Capacitance is 56 pF
FIGURE 2-9:
© 2007 Microchip Technology Inc.
Difference Amplifier Designed In the Mindi™ Amplifier Designer.
DS51673A-page 13
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
Figure 2-10 shows the same circuit redrawn to emphasize the difference amplifier.
VS
VDD
V1
Source
Configuration
VA
R4
VR
VR
Mid-supply
Reference
Power
Supply
C1
VOUT
Output
Load
U1
V2
VB
R3
R1
VL
R2
FIGURE 2-10:
Difference Amplifier Supported by the MCP6XXX Amplifier
Evaluation Board 3 Kit.
Each of the components in Figure 2-10 that needs to be inserted in a socket on the
MCP6XXX Amplifier Evaluation Board 3 is listed in Table 2-1.
TABLE 2-1:
AMPLIFIER COMPONENTS LIST
PCB Labels
Component Values
R1
1.98 kΩ
R2
1.98 kΩ
R3
1.98 kΩ
R4
1.98 kΩ
RISO
0Ω
RL
1.98 kΩ
CL
56 pF
U1
MCP6021, PDIP-8, 10 MHz
For the differential mode input signal, the jumper JPS1 position is listed in Table 2-2.
TABLE 2-2:
DS51673A-page 14
JUMPER POSITION
Jumper
Position
JPS1
2
© 2007 Microchip Technology Inc.
Installation and Operation
The fully assembled difference amplifier circuit diagram is shown in Figure 2-11.
Mid-supply
Reference
Block
Power Supply
VDD
*
*
GND
VREF
R3
VA
VDD
R4
0.1 µF
*
* Test Points
*
CU1
CP1
1.0 µF
R1
Source
Configuration
Block
*
CL
RL
GND
VL
*
*
RISO
1
2
3
VB
GND
U1
R2
*
DP1
FIGURE 2-11:
Fully Assembled Difference Amplifier Supported by the
MCP6XXX Amplifier Evaluation Board 3.
The fully assembled MCP6XXX Amplifier Evaluation Board 3 top view is shown in
Figure 2-12.
FIGURE 2-12:
Picture of the Difference Amplifier Supported by the MCP6XXX
Amplifier Evaluation Board 3.
© 2007 Microchip Technology Inc.
DS51673A-page 15
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
2.4.2
Testing the Amplifier
2.4.2.1
CHECKING THE TEST POINTS
The (surface mount) test points for power supply, ground, input signal and output signal
allow lab equipment to be connected to the board. Figure 2-13 shows the test points to
check.
VREF
Test Point
GND
Test Point
VDD
Test Point
VA
Test Point
GND
Test Point
VB
Test Point
FIGURE 2-13:
DS51673A-page 16
VL
Test Point
GND
Test Point
Checking the Test Points.
© 2007 Microchip Technology Inc.
Installation and Operation
2.4.2.2
TRANSIENT RESPONSES
This difference amplifier was built, and its responses were measured. A MCP6021 op
amp, 1% resistors, and 5% capacitors were used. Notice how close the measured and
simulated data are.
2.4.2.2.1
Transient Step Response
In Bench Measurement:
• Set VIN as a differential mode signal with a step amplitude of 2.0V and a center
voltage of 2.5V. (i.e. VIN starts 1.0V below center and ends 1.0V above center
• The measured step response is shown in Figure 2-14. It is a signal with a step
amplitude of 4.0V and a center voltage of 2.5V. (i.e. VOUT starts 2.0V below center
and ends 2.0V above center
Note:
The center voltage of VIN is set at VREF = VDD/2 (For VDD = 5.0V,
VREF = 2.5V)
VOUT = 4.5V
VIN = 3.5V
VREF = 2.5V
FIGURE 2-14:
© 2007 Microchip Technology Inc.
Measured Step Response.
DS51673A-page 17
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
In the Mindi™ Amplifier Designer:
• Set VIN as a differential mode signal with a step amplitude of 2.0V and a center
voltage of 2.5V. (i.e. VIN starts 1.0V below center and ends 1.0V above center)
• The simulated step response is shown in Figure 2-15. It is a signal with a step
amplitude of 4.0V and a center voltage of 2.5V. (i.e. VOUT starts 2.0V below center
and ends 2.0V above center)
Note:
The center voltage of VIN is set at VREF = VDD/2 (For VDD = 5.0V,
VREF = 2.5V)
VOUT = 4.5V
VIN = 3.5V
VREF = 2.5V
FIGURE 2-15:
DS51673A-page 18
Simulated Step Response.
© 2007 Microchip Technology Inc.
Installation and Operation
2.4.2.2.2
Transient Sine Wave Response
In Bench Measurement:
• Set VIN as a sine wave with a frequency of 100.0 Hz, a peak-to-peak voltage of
2.0V and a center voltage of 2.5V
• The measured sine wave response is shown in Figure 2-16. It is a sine wave
signal with a frequency of 100.0 Hz, a peak-to-peak voltage of 4.0V and a center
voltage of 2.5V
Note:
The center voltage of VIN is set at VREF = VDD/2 (For VDD = 5.0V,
VREF = 2.5V)
VOUT
VREF
VIN
FIGURE 2-16:
© 2007 Microchip Technology Inc.
Measured Sine Wave Response.
DS51673A-page 19
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
In the Mindi™ Amplifier Designer:
• Set VIN as a sine wave with a frequency of 100.0 Hz, a peak-to-peak voltage of
2.0V and a center voltage of 2.5V
• The simulated sine wave response is shown in Figure 2-17. It is a sine wave
signal with a frequency of 100.0 Hz, a peak-to-peak voltage of 4.0V and a center
voltage of 2.5V
Note:
The center voltage of VIN is set at VREF = VDD/2 (For VDD = 5.0V,
VREF = 2.5V)
VOUT
VREF
VIN
FIGURE 2-17:
DS51673A-page 20
Simulated Sine Wave Response.
© 2007 Microchip Technology Inc.
Installation and Operation
2.4.3
Amplifier Modifications Using 8-Pin SOIC Op Amps
There are two options available to use single op amps in SOIC-8 packages (150 mil
wide):
• Soldering onto the MCP6XXX Amplifier Evaluation Board 3, or
• Soldering it onto a separate board which is connected to the DIP-8 socket
Note:
The DIP-8 socket must be empty; only one op amp can be used at a time.
Figure 2-18 shows a SOIC-8 op amp soldered onto the MCP6XXX Amplifier Evaluation
Board 3.
Solder an SOIC-8
Op Amp onto the
board
The PDIP socket
must be empty
FIGURE 2-18:
Op Amp in SOIC-8 package soldered onto MCP6XXX Amplifier
Evaluation Board 3.
Figure 2-19 shows a SOIC-8 op amp and a DIP-8 socket, soldered onto the 8-Pin
SOIC/MSOP/TSSOP/DIP Evaluation Board available from Microchip Technology Inc.
(order # SOIC8EV). The two interconnect strips on the bottom are Samtec part #
BBS-14-T-B or equivalent and are soldered into the through holes for the DIP-8 socket.
Figure 2-20 shows this board plugged into the MCP6XXX Amplifier Evaluation Board
3.
Note:
© 2007 Microchip Technology Inc.
Insert the interconnect strips into the DIP-8 socket on the MCP6XXX
Amplifier Evaluation Board 3. Place the SOIC8EV board on the top of the
interconnect strips with the same pin orientation. Now solder the strips to
the top board; this procedure ensures correct alignment of the strips. Clip
the pins flush with the top surface of the SOIC8EV board, then solder the
SOIC-8 op amp on the top.
DS51673A-page 21
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
(Front View)
DS51673A-page 22
(Back View)
FIGURE 2-19:
Op Amp in SOIC-8 package soldered onto a separate board.
FIGURE 2-20:
Board 3.
Connecting Adaptor Board onto MCP6XXX Amplifier Evaluation
© 2007 Microchip Technology Inc.
MCP6XXX AMPLIFIER EVALUATION
BOARD 3 USER’S GUIDE
Appendix A. Schematic and Layouts
A.1
INTRODUCTION
This appendix contains the following schematics and layouts for the MCP6XXX Amplifier Evaluation Board 3:
•
•
•
•
Board – Schematic
Board – Top Silk Layer
Board – Top Trace and Silk Layer
Board – Bottom Layer
© 2007 Microchip Technology Inc.
DS51673A-page 23
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
BOARD - SCHEMATIC
M
A.2
1
3
DS51673A-page 24
© 2007 Microchip Technology Inc.
Schematic and Layouts
A.3
BOARD - TOP SILK LAYER
© 2007 Microchip Technology Inc.
DS51673A-page 25
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
A.4
BOARD - TOP TRACE AND SILK
DS51673A-page 26
© 2007 Microchip Technology Inc.
Schematic and Layouts
A.5
BOARD - BOTTOM LAYER
© 2007 Microchip Technology Inc.
DS51673A-page 27
MCP6XXX Amplifier Evaluation Board 3 User’s Guide
NOTES:
DS51673A-page 28
© 2007 Microchip Technology Inc.
MCP6XXX AMPLIFIER EVALUATION
BOARD 3 USER’S GUIDE
Appendix B. Bill of Materials (BOM)
B.1
MCP6XXX AMPLIFIER EVALUATION BOARD 3 BOM
The Bill of Materials (BOM) in Table B-1 corresponds to Figure 2-1 and Figure 2-2.
Unpopulated parts are in Table B-2.
TABLE B-1:
Qty
BILL OF MATERIALS (102-00153R1) (NOTE 1)
Reference
Description
Manufacturer
Part Number
1
CP1
CAP CERAMIC 1UF 10% 25V
X5R 0805
Panasonic®
5
CR1,CR2 CS1
CU1,CU2
CAP CERAMIC .1UF 10% 25V
X7R 0805
Panasonic - ECG
ECJ-2VB1E104K
4
EA Corner
BUMPER CLEAR
.375X.15"DOME
Richco Plastic Co
RBS-12
1
JPS1
CONN HEADR BRKWAY .100
06POS STR
Tyco® Electronics/Amp
4-103327-0-06
1
PCB
RoHS Compliant Bare PCB
Microchip Technology Inc.
14
Pin Socket
PIN RECPT .015/.025 DIA 0667 Mill-Max®
SER
0667-0-15-01-30-27-10-0
4
RR1,RR2
RS1,RS2
RES 20.0K OHM 1/8W 1% 0805 Panasonic - ECG
SMD
ERJ-6ENF2002V
1
RS3
RES 10.0K OHM 1/8W 1% 0805 Panasonic - ECG
SMD
ERJ-6ENF1002V
1
Shunt for JPS1
SOCKET,SHORT BLKS W TAB
BLK
JAMECO VALUEPRO
2012JH-R
8
Test Points
PC TEST POINT COMPACT
SMT
Keystone Electronics®
5016
2
UR1,US1
MCP6021 SOT-23-5 Single
OpAmp
Microchip Technology Inc.
MCP6021T-E/OT
1
For U1
CONN IC SOCKET 8POS DIP
TIN
Tyco Electronics/Amp
2-641260-1
Note 1:
- ECG
ECJ-2FB1E105K
104-00153
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.
© 2007 Microchip Technology Inc.
DS51673A-page 29
Bill of Materials (BOM)
TABLE B-2:
Qty
BILL OF MATERIALS – UNPOPULATED PARTS (102-00153R1)
Reference
Description
Manufacturer
Part Number
1
U1
MCP6021 PDIP-8, Single Op
Amp
Microchip
Technology Inc
MCP6021T-E/P
1
U2
MCP6021 SOIC-8, Single Op
Amp
Microchip
Technology Inc
MCP6021T-E/SN
7
R1-R4, RISO, RL, Not Populated when shipped to
CL
customer
—
—
Note 1:
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.
The BOM in Table B-3 corresponds to the collection of resistors, capacitorys, jumpers
and MCP6021 op amps that come in the Accessory Bag which is shipped in the
MCP6XXX Amplifier Evaluation Board 3 Kit. These components are placed in an
separate ESD bag. They support the circuit in Section 2.4.1 “Building the Amplifier”.
Customers need to provide the resistors and capacitors for more amplifier circuits.
TABLE B-3:
Qty
BILL OF MATERIALS – ACCESSORY BAG PARTS (102-00153R1)
Reference
Description
Manufacturer
Electronics®
Part Number
1
Accessory Bag
CAP CER 56PF 50V C0G
RADIAL
Murata
1
Accessory Bag
JUMPER ZERO OHM 1/8W
Yageo® Corporation
ZOR-12-B-52
5
Accessory Bag
RES 1.96K OHM 1/4W 1%
METAL FILM
Yageo Corporation
MFR-25FBF-1K96
1
ESD Sample Box MCP6021 Single OpAmp
PDIP-8
Note 1:
RPE5C1H560J2P1Z03B
Microchip Technology Inc MCP6021-E/P
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.
© 2007 Microchip Technology Inc.
DS51673A-page 30
Bill of Materials (BOM)
NOTES:
© 2007 Microchip Technology Inc.
DS51673A-page 31
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06/25/07
DS51673A-page 32
© 2007 Microchip Technology Inc.