Microchip HV2722 User Manual
HV2722
Analog Switch
Evaluation Board
User’s Guide
2019 Microchip Technology Inc. DS50002810A
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ISBN: 978-1-5224-4990-4
DS50002810A-page 2 2019 Microchip Technology Inc.
HV2722 ANALOG SWITCH
EVALUATION BOARD
USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 5
Introduction............................................................................................................ 5
Document Layout .................................................................................................. 5
Conventions Used in this Guide ............................................................................ 6
Recommended Reading........................................................................................ 7
The Microchip Website .......................................................................................... 7
Product Change Notification Service..................................................................... 7
Customer Support ................................................................................................. 7
Document Revision History ................................................................................... 7
Chapter 1. Product Overview
1.1 Introduction ..................................................................................................... 9
1.2 HV2722 Device Short Overview ..................................................................... 9
1.3 HV2722 Analog Switch Evaluation Board Features ....................................... 9
1.4 What is the HV2722 Analog Switch Evaluation Board? ............................... 10
1.5 HV2722 Analog Switch Evaluation Board Technical Parameters ................ 10
1.6 HV2722 Analog Switch Evaluation Board Kit Contents ................................ 11
Chapter 2. Installation and Operation
2.1 Getting Started ............................................................................................. 13
2.2 HV MUX GUI Installation .............................................................................. 13
2.3 HV2722 Analog Switch Evaluation Board Setup Procedure ........................ 17
2.4 Interface Connections .................................................................................. 19
2.5 HV MUX Controller Board Setup Procedure ................................................ 20
2.6 Testing the HV2722 Analog Switch Evaluation Board ................................. 21
2.7 Generation of Pulser Output at SW2A of HV2722 ....................................... 21
Chapter 3. GUI Description
3.1 HV2722 Analog Switch Evaluation Board GUI Description .......................... 23
Chapter 4. PCB Design and Layout Notes
4.1 PCB Layout Techniques for HV2722 ........................................................... 25
Appendix A. Schematics and Layouts
A.1 Introduction .................................................................................................. 27
Appendix B. Bill of Materials (BOM)
B.1 HV2722 Analog Switch Evaluation Board (ADM00946) .............................. 51
B.2 HV MUX Controller Board (ADM00825) ...................................................... 53
Appendix C. Demo Board Waveforms
C.1 Board Typical Waveforms ............................................................................ 57
Worldwide Sales and Service .................................................................................... 58
2019 Microchip Technology Inc. DS50002810A-page 3
HV2722 Analog Switch Evaluation Board User’s Guide
NOTES:
DS50002810A-page 4 2019 Microchip Technology Inc.
HV2722 ANALOG SWITCH
EVALUATION BOARD
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 website
(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
“DSXXXXXXXXA”, where “XXXXXXXX” 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
Select the Help menu, and then Topics, to open a list of available online help files.
INTRODUCTION
This chapter contains general information that will be useful to know before using the
HV2722 Analog Switch Evaluation Board. Items discussed in this chapter include:
• Document Layout
• Conventions Used in this Guide
• Recommended Reading
• The Microchip Website
• Customer Support
• Document Revision History
®
IDE online help.
DOCUMENT LAYOUT
This document describes how to use the HV2722 Analog Switch Evaluation Board as
a development tool to emulate and debug firmware on a target board. The manual
layout is as follows:
• Chapter 1. “Product Overview” – Important information about the HV2722
Analog Switch Evaluation Board.
• Chapter 2. “Installation and Operation” – This chapter includes a detailed
description of each function of the demonstration board and instructions for how to
begin using the HV2722 Analog Switch Evaluation Board.
• Chapter 3. “GUI Description” – This chapter describes the features of the GUI
PC software.
• Chapter 4. “PCB Design and Layout Notes” – This chapter explains important
points of the PCB design and layout of HV2722 Analog Switch Evaluation Board.
• Appendix A. “Schematics and Layouts” – Shows the schematic and PCB
layout diagrams for the HV2722 Analog Switch Evaluation Board.
• Appendix B. “Bill of Materials (BOM)” – Lists the parts used to build the
HV2722 Analog Switch Evaluation Board.
• Appendix C. “Demo Board Waveforms” – Describes the various demo
waveforms for the HV2722 Analog Switch Evaluation Board.
2019 Microchip Technology Inc. DS50002810A-page 5
HV2722 Analog Switch Evaluation Board User’s Guide
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description Represents Examples
Arial font:
Italic characters Referenced books MPLAB® IDE User’s Guide
Emphasized text ...is the only compiler...
Initial caps A window the Output window
A dialog the Settings dialog
A menu selection select Enable Programmer
Quotes A field name in a window or
dialog
Underlined, italic text with
right angle bracket
Bold characters A dialog button Click OK
N‘Rnnnn A number in verilog format,
Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>
Courier New font:
Plain Courier New Sample source code #define START
Italic Courier New A variable argument file.o, where file can be
Square brackets [ ] Optional arguments mcc18 [options] file
Curly brackets and pipe
character: { | }
Ellipses... Replaces repeated text var_name [,
A menu path File>Save
A tab Click the Power tab
where N is the total number of
digits, R is the radix and n is a
digit.
Filenames autoexec.bat
File paths c:\mcc18\h
Keywords _asm, _endasm, static
Command-line options -Opa+, -Opa-
Bit values 0, 1
Constants 0xFF, ‘A’
Choice of mutually exclusive
arguments; an OR selection
Represents code supplied by
user
“Save project before build”
4‘b0010, 2‘hF1
any valid filename
[options]
errorlevel {0|1}
var_name...]
void main (void)
{ ...
}
DS50002810A-page 6 2019 Microchip Technology Inc.
RECOMMENDED READING
This user’s guide describes how to use the HV2722 Analog Switch Evaluation Board.
Another useful document is listed below. The following Microchip document is available
and recommended as a supplemental reference resource:
HV2621/HV2721/HV2722 Data Sheet – “300V, Low-Charge Injection, 16-Channel,
High-Voltage Analog Switch” (DS20006082A)
THE MICROCHIP WEBSITE
Microchip provides online support via our website at www.microchip.com. This website
is used as a means to make files and information easily available to customers.
Accessible by using your favorite Internet browser, the website 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
Preface
PRODUCT CHANGE NOTIFICATION SERVICE
Microchip’s customer notification service helps keep customers current on Microchip
products. Subscribers will receive email notifications whenever there are changes,
updates, revisions or errata related to a specified product family or development tool of
interest.
To register, access the Microchip website at www.microchip.com, click on Product
Change Notification and follow the registration instructions.
CUSTOMER SUPPORT
Users of Microchip products can receive assistance through several channels:
• Distributor or Representative
• Local Sales Office
• Field Application Engineer (FAE)
• Technical Support
Customers should contact their distributor, representative or field application engineer
(FAE) 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 website at:
http://www.microchip.com/support.
DOCUMENT REVISION HISTORY
Revision A (September 2019)
• Initial release of this document
2019 Microchip Technology Inc. DS50002810A-page 7
HV2722 Analog Switch Evaluation Board User’s Guide
NOTES:
DS50002810A-page 8 2019 Microchip Technology Inc.
Chapter 1. Product Overview
1.1 INTRODUCTION
The HV2722 Analog Switch Evaluation Board (ADM00946) works with the HV MUX
Controller Board (ADM00825) to provide No High-Voltage Bias, 32-Channel,
High-Voltage Analog Switches with L-Switch Architecture demonstration, including
basic on/off switch operation, and 2:1 MUX operation with two built-in MD1822,
TP2640 and TN2640 pulser circuits.
1.2 HV2722 DEVICE SHORT OVERVIEW
The HV2722 device is a 300V, low-charge injection, 16-channel high-voltage analog
switch. It is designed to be used in applications requiring high-voltage switching,
controlled by low-voltage command signals, such as medical ultrasound imaging,
driving piezoelectric transducers and in printers. Using the 300V high-voltage CMOS
technology, the typical 18 on-resistance analog switch can pass the analog pulse
signal up to ±3A and ±135V, under high-voltage supplies of ±150V. It requires 3.3V or
5V for the logic operation.
HV2722 ANALOG SWITCH
EVALUATION BOARD
USER’S GUIDE
1.3 HV2722 ANALOG SWITCH EVALUATION BOARD FEATURES
• HV2722 No High-Voltage Bias, 32-Channel, High-Voltage Analog Switches with
L-Switch Architecture
• Designed to work with Microchip HV MUX Controller Board
• Two 2:1 MUX with Built-In MD1822, TP2640 and TN2640 Pulsers
• 5 MHz, 3-Level Voltage Pulse Waveform Outputs
• On-Board 330 pF//2.5 k Dummy Load per SW2A, SW3A, SW12A, SW13A
• Switch On/Off Control through the PC GUI and the HV MUX Controller Board
• Pulser On/Off and Time Domain Control through the PC GUI and the HV MUX
Controller Board
2019 Microchip Technology Inc. DS50002810A-page 9
HV2722 Analog Switch Evaluation Board User’s Guide
1.4 WHAT IS THE HV2722 ANALOG SWITCH EVALUATION BOARD?
The HV2722 Analog Switch Evaluation Board can control the HV2722 device’s
operation and built-in pulsers that are connected to the two 2:1 MUX switches for
demonstration. Four switch outputs, on the one side of two 2:1 MUX, have SMA
connectors to which the user can connect four transducer elements. The other side of
the 2:1 MUX is connected to two built-in MD1822, TP2640 and TN2640 pulsers. The
HV2722 Analog Switch Evaluation Board can drive four transducer elements with
5 MHz, ±135V pulse signals.
The HV2722 Analog Switch Evaluation Board features one HV2722K6-G 9x9x1 mm
64-Lead QFN packaged integrated circuit, two MD1822K6-G 3x3x1 mm 16-Lead QFN
packaged integrated circuits, four TP2640LG-G 4.9x3.9x1.75 mm 8-Lead SOIC
packaged PMOS and four TN2640LG-G 4.9x3.9x1.75 mm 8-Lead SOIC
packaged NMOS.
The HV2722 Analog Switch Evaluation Board uses two high-speed 20-signal pair
carrying capable right-angle backplane connectors, which are designed to work with
the Microchip HV MUX Controller Board (ADM00825) as a control signal source.
The HV MUX Controller Board has an FPGA that generates pulser waveform and
logic control signals, and a USB bridge IC that connects the control board to a PC. By
using a Microsoft
the HV2722 device and two built-in pulsers.
Four switch terminals, consisting of two 2:1 MUX configurations on the PCB, have
SMA connectors to which the user can connect loads. The jumpers close to the SMA
connectors are for optionally connecting the on-board dummy R-C load
(330 pF//2.5 kΩ) to the pulser output.
®
Windows
®
operated PC and the GUI software, the user can control
WARNING
Risk warning of electrical shock. This board uses multiple hazardous high
voltages. Disconnect all high-voltage supplies before working on it. Electrical
safety precautions must be taken when working on or using this board.
1.5 HV2722 ANALOG SWITCH EVALUATION BOARD TECHNICAL PARAMETERS
TABLE 1-1: HV2722 ANALOG SWITCH EVALUATION BOARD TECHNICAL
PARAMETERS
Parameter Value
Pulser Frequency 5 MHz
Number of Pulses in the Train 1 to 90
T
Time between Pulse Trains 5 to 30 msec
OFF
Pulse Peak Voltage and Current 0 to ±135V and ±3A (typical)
Interface of FPGA Control Signals
and USB PC-GUI Software
Pulser R-C Test-Load and User’s
Transducer Interface
PCB Board Dimension 115 mm x 110 mm
J1 and J2 connect to the ADM00825 HV MUX
Controller Board
Built-in, 330 pF//2.5 k per channel with jumper and
50 SMA
DS50002810A-page 10 2019 Microchip Technology Inc.
Product Overview
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FIGURE 1-1: HV2722 ANALOG SWITCH EVALUATION BOARD SIMPLIFIED BLOCK DIAGRAM
1.6 HV2722 ANALOG SWITCH EVALUATION BOARD KIT CONTENTS
The HV2722 Analog Switch Evaluation Board includes:
• HV2722 Analog Switch Evaluation Board (ADM00946)
• Important Information Sheet
2019 Microchip Technology Inc. DS50002810A-page 11
HV2722 Analog Switch Evaluation Board User’s Guide
NOTES:
DS50002810A-page 12 2019 Microchip Technology Inc.
Chapter 2. Installation and Operation
2.1 GETTING STARTED
The HV2722 Analog Switch Evaluation Board is fully assembled and tested. The board
requires six power supply voltage rails of +5V, +10V, ±135V and ±150V. The +5V is
supplied from the HV MUX Controller Board and the others need to be supplied from
external power supplies.
2.1.1 Additional Tools Required for Operation
1. An oscilloscope with minimum 500 MHz bandwidth and two high-impedance
probes. Make sure the grounds of the power supply sources are correctly
connected to the same ground as the testing oscilloscope ground.
2. A Microchip HV MUX Controller Board (ADM00825).
3. A Microsoft
installed and running:
- Connect J1 and J2 to the HV MUX Controller Board
- Connect the HV MUX Controller Board through the USB port to the
Windows 7 PC
®
Windows
HV2722 ANALOG SWITCH
EVALUATION BOARD
USER’S GUIDE
®
7 PC with the HV MUX Controller Board GUI software
2.2 HV MUX GUI INSTALLATION
The HV MUX GUI software installer can be downloaded from the Microchip website at
www.microchip.com. Search for the evaluation board on the website by the part
number: ADM00946.
1. Open the HVMUXGUI-v1.0.0-windows-installer.exe.
2. Initiate the HV MUX GUI software installer by launching the Application Install
dialog box.
3. Click Next to start the installation.
2019 Microchip Technology Inc. DS50002810A-page 13
HV2722 Analog Switch Evaluation Board User’s Guide
FIGURE 2-1: HV MUX GUI – APPLICATION INSTALL DIALOG BOX
4. Read the License Agreement and accept it by checking the box corresponding
to “I accept the agreement”. Click Next to proceed with the installation.
FIGURE 2-2: HV MUX GUI – LICENSE AGREEMENT DIALOG BOX
5. On the Installation Directory dialog box, browse for the desired location or click
Next to install in the default location.
DS50002810A-page 14 2019 Microchip Technology Inc.
Installation and Operation
FIGURE 2-3: HV MUX GUI – INSTALLATION DIRECTORY DIALOG BOX
6. Once the installation path is chosen, the software is ready to install. Click Next.
FIGURE 2-4: HV MUX GUI – READY TO INSTALL DIALOG BOX
7. The Installation Status window appears, showing the installation progress.
8. After the installation has completed, click Next.
2019 Microchip Technology Inc. DS50002810A-page 15
HV2722 Analog Switch Evaluation Board User’s Guide
FIGURE 2-5: HV MUX GUI – INSTALLATION STATUS DIALOG BOX
9. Once the Installation Complete dialog box appears, click the Finish button to exit
the installer.
FIGURE 2-6: HV MUX GUI – INSTALLATION COMPLETE DIALOG BOX
DS50002810A-page 16 2019 Microchip Technology Inc.
Installation and Operation
2.3 HV2722 ANALOG SWITCH EVALUATION BOARD SETUP PROCEDURE
To operate the HV2722 Analog Switch Evaluation Board, the following steps must be
completed:
1. Attach it to the HV MUX Controller Board (ADM00825) with connectors J1 and J2.
2. Connect all the jumpers on J12, J13, J28 and J29 for the on-board R-C load.
3. Connect all the power supplies to the voltage supply input connectors J3 and J4,
as indicated in Ta b le 2- 1, by observing the polarity.
WARNING
Please observe the polarity of each power supply rail, and set the voltage and current
limit carefully.
4. Connect a USB cable from the HV MUX Controller Board to the PC.
5. Connect +12V/1A power to the HV MUX Controller Board.
6. Turn on the V
7. Turn on the V
NN/VPP
GP
8. Run the HV MUX GUI software on the PC.
9. Click the Initialize HV MUX Controller Board button in the GUI. This causes the
message window at the bottom of the screen to display an “initialization
complete” message.
10. Clear the STBY
these states. Not used for HV2722EVB.)
11. Click the Set HV MUX button. All digital control signals are applied to HV2722.
12. Set the number of pulses and T
13. Select CH1 or CH2 to set the Channel 1 pulser or the Channel 2 pulser,
respectively.
14. Click the Start button for the selected pulser to generate pulse trains.
15. Click the Stop button for the selected pulser to stop generating pulse trains.
.
and +P/-P.
check box and select the MODE check box. (Do not change
time of the pulser.
OFF
TABLE 2-1: POWER SUPPLY VOLTAGES AND CURRENT LIMIT SETTINGS
Terminal Rail Name Voltage Average Current Limit
J3-1 +P +60V to +135V +20 mA
J3-2 -P -135V to 0V -20 mA
J3-3 GND 0V —
J3-4 V
J3-5 V
J4-1 V
J4-2 GND 0V —
PP
NN
GP
+P +15V +5 mA
-P -15V -5 mA
+5 to +11.5V +10 mA
2019 Microchip Technology Inc. DS50002810A-page 17
HV2722 Analog Switch Evaluation Board User’s Guide
FIGURE 2-7: HV2722 ANALOG SWITCH EVALUATION BOARD – FRONT VIEW
2.3.1 Recommended Power-up and Power-Down Sequences
Ta bl e 2 - 2 shows the recommended power-up and power-down sequences of the
HV2722 Analog Switch Evaluation Board.
TABLE 2-2: HV2722 ANALOG SWITCH EVALUATION BOARD POWER-UP
AND POWER-DOWN SEQUENCES
Step Power-up Description Step Power-Down Description
1V
2V
3 +P and -P on 3 VNN and V
and VPP on 1 +P and -P off
NN
on 2 VGP off
GP
PP
off
WARNING
Powering the HV2722 Analog Switch Evaluation Board up/down in an arbitrary
sequence may cause damage to the device.
DS50002810A-page 18 2019 Microchip Technology Inc.
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