MAXREFDES24EVSYS User Manual
Contents
1. Analog Output MAXREFDES MO bol o E U S B Scan Adapters CONNECTIVITY o o gt y a Y Y 2 gt MAX15500 OUTPUT CONDITIONER MAX5134 CONFIGURATION DAC CODE mae 9 o AND STATUS GENERATION mi o o 4 1 1 USB2PMB Adapter USB connectivity is managed in the USB Adapter section located in the upper left hand corner of the application Click Scan Adapters to discover any compatible USB2PMB devices starting with PMOD If no adapters are found the GUI offers the user the ability to enter into a Demo GUI mode where the user can exercise the features of the GUI without communicating to any hardware Click on Connect once the adapter starting with PMODxxxxxxx appears USB2PMB Adapter scan Adapters PIMODESI321A Connect Rev 1 9 MAXREFDES24EVSYS User Manual Connection Troubleshooting No USB Adapter Found j j No USB adapter found Do you want to demo the GUI without FP connecting to a USB device Eval Board Unpowered or Not Connected The evaluation board is either unpowered or not connected to USB A adapter Rev 1 If you see this pop up screen after clicking Scan Adapters check USB connection to the PC and USB2PMB1 adapter Also confirm drivers are installed in Windows Device Manager Click No and try scanning for adapters again Click Yes to proceed launching the GUI in a demo mode If you see this pop up after clicking Connect make sure the J1 connector of the MAXREFDES24 board is co2. PC System Requirements The MAXREFDES24EVSYS kit requires the use of a PC with the following e Minimum 1GHz processor and 1GB RAM e Minimum 1024 x 768 video display resolution e Two available USB ports e Microsoft Windows 8 Windows 7 Windows Vista or Windows XP 1 4 Functional Diagram MAX15500 Windows PC MAXREFDES24 SIGNAL CONDITIONERS REFDES24 ADCLITE2 Tack ANALOG SIGNAL ia LDO MAX6126 VREF CAPTURE OUTPUT GUI GUI Es 20 30VDC MAX17498 MAX14850 DIGITAL FLYBACK CONTROL ISOLATOR gt 150mA USB2PMB1 MAX5134 4 CHANNEL 16 BIT DAC FT2232HL USB CONTROL AND MAX1556 CONTROLLER DIAGNOSTICS DC DC MAXADCLITE 2 MAX8511 LDO MEASUREMENT MAXQ622 MAX11645 CONTROLLER 2 CHANNEL BIPOLAR MODES NOT COMPATIBLE WITH MAXADCLITE2 12 BIT ADC HARDWARE 1 5 Quick Start Instructions mb Copy USB flash drive contents to PC if only two USB ports available Connect USB2PMB1 to MAXREFDES24 as shown Plug 24VDC adapter into AC source and MAXREFDES24 Connect USB cables to USB2PMB1 and MAXADCLite2 dnd Bb Y N Use test clips to connect output of MAXREFDES24 to input of MAXADCLite2 Launch GUls O Rev 1 4 MAXREFDES24EVSYS User Manual 2 Software Description There are two Windows GUI applications included with MAXREFDES24EVSYS that can be executed directly from the USB flash drive after USB connections have been established with the boards and Windows comple
3. ever asserted one or more of the asserted if the respective output asserted if there is an open other asserted error conditions is shorted to analog ground circuit in the current loop for the has cleared before the user read respective output the status register If the short circuit condition has been resolved a subsequent If the open load condition has A subsequent Refresh clears the Refresh asserts both the been resolved a subsequent intermittent errors and leaves any Intermittent Fault and Short Circuit Refresh asserts both the persistent error alarms asserted errors A second Refresh clears Intermittent Fault and Open Load the error unless the short circuit errors A second Refresh clears condition has returned the error unless the open load condition has returned If the short circuit condition remains the error remains If the open load condition asserted as shown above remains the error remains asserted as shown above Rev 1 19 MAXREFDES24EVSYS User Manual 4 1 3 MAX5134 DAC Code Generator MAX5134 DAC a The MAX5134 DAC control section allows users to send a single DAC Pick Waveform value for a DC output or to pick from a few basic waveforms Signal DC levels are set in DAC codes range of 0 to 65535 and are sent to all E four DAC outputs See the table in the Analog Signal Connections ne Wave section for respective output signal levels sawtooth Wave Triangle Wave Note that the USB overhead encountered in the USB2PMB
4. 1 board through use of FTDI chipsets software device driver will throttle Waveform Adjustments throughput from the PC to the MAX5134 quad DAC device when DC Value mE generating waveform signals to approximately 2 6K DAC sampling points per second Refer to Reference Schematic 5839 Alameda t MAXREFDES24 4 Channel Analog Output for more information on performance results for the DAC and MAXREFDES24 reference design using a Xilinx development kit 65500 3500 5D Generate Signal Rev 1 13 MAXREFDES24EVSYS User Manual 4 2 GUI for MAXADCLITE2 With the MAXADCLITE2 board connected run double click the MAXADCLite2 exe file located in the IMAXADCLITEA directory The application runs in a continuous sampling mode at a sampling rate of 1ksps The only user control is selecting the input channel default AINO The ADCLite2 is basic and simple way to quickly look at the MAXREFDES24 output waveforms For more information on the MAX11645 and other evaluation kits go to www maximintegrated com MAX11645 MAXADClite2 GUI v1 0 coe C fm File Help Channel AINO v Scope 10 0 20 0 9 0 18 0 8 0 16 0 7 0 14 0 S 60 120 2 pace ESAs ach RSENS RAGE USO MORA NO o 50 10 0 3 S 40 so A 3 04 6 0 2 0 4 0 1 0 2 0 0 0 0 0 _ _ _ _ _ 0 100 200 300 400 500 600 700 800 900 1000 Samples H
5. CROWIRE compatible serial EEPROM 93LC66BT and a low power 1 2A PWM step down DC DC converter MAX1556 for generating 3 3V VCCIO from the 5V USB supply VCCIO provides power to the FTDI chip the 4K MICROWIRE EEPROM and to the 12 pin connector for 3 3V Pmod Type 2A compatible boards For more information on the USB2PMB1 hardware design or other compatible boards from Maxim Integrated go to www maximintegrated com USB2PMB1 For more information on the Pmod form factor refer to the Digilent Pmod Interface Specification or visit www Digilentinc com Rev 1 15 MAXREFDES24EVSYS User Manual 6 Contact Information For more information about Maxim Integrated products contact technical support at www maximintegrated com support 7 Trademarks MICROWIRE is a registered trademark of National Semiconductor Corp Pmod is a trademark Digilent Inc Windows is a registered trademark and registered service mark and Windows Vista and Windows XP are registered trademarks of Microsoft Corporation Rev 1 16 MAXSANTAFEEVSYS User Manual 8 Revision History REVISION REVISION PAGES NUMBER DATE DESH ON CHANGED 0 1144 Initial release OS i 1 15 Corrected the required hardware jumpers for FSMODE in the table of Section 3 5 Analog Signal Connections Rev 1 17
6. SOMWare Descrip cueca 5 Hardware COMNMECUONS sirsie a a 6 3 1 USB2PMBI 10 MAXREFDES24 uti a ia 6 32 24 vDCIOMAXREFDES24 tddi 6 33 USB2PMBT TOP dio 7 34 MAXADOLITEZ TOPO ects secret dile 7 3 5 Analog Signal CONNECtIONS oocccccccccnncnncccnooncnnnnnnnncnnnnononnnnnnnononnnnnnnrnnnnnnnnnnnnnrnnnrnnnnnrnnnnnnnanennnnss 8 Graphical User IMIEFTACES scis eee 9 4 1 GUITO MAXREFDES 24 ica issn coset cre na al a dela 9 All WSB2PMB Ada casted ice ce sca aa oes ce wee aa ence awa aiwia 9 4 1 2 MAX15500 Output Conditioners ooocccnncccnncccnnccnnoncnnncnnnnnonnnonnnancnnnnonnnncnnnnonnnrnnnononancoss 11 4 1 3 MAX5134 DAC Code Generator ooocccncccccocccnncccconcnnncnnnancnonononancnnnnnnnnnnnnnnnnnnrrnnnnnnannnns 13 42 GUIMOEMAXADGLITES svirit tanatorio tela sacada 14 ES oo PP A 14 Hardware DA ao 15 5 1 A Ra a a aaa 15 52 MAXAD CIN E2 urran a a a enecicalat cantata atthe 15 53 WUSB2PMB 4 EA A r r E a AE 15 GomtactintormatloNi iia E a eerie Aa 16 Trademarks E a a a iblcios 16 A a a a a aE 17 Rev 1 2 MAXREFDES24EVSYS User Manual 1 Introduction The MAXREFDES24EVSYS design accelerator kit allows users to quickly demonstrate and evaluate the functionality of Maxim Integrated s 4 channel analog output AO reference design MAXREFDES24 without the need for a bench power supply digital multimeter or Xilinx development kit The reference board connects to a PC through an included USB to SPl adapter USB2PMB1 that provides d
7. ardware connected Data Read Success MAXADClite2 GUI v1 0 o mesa File Help Channel AINO v Scope 10 0 20 0 9 0 18 0 8 0 16 0 7 04 lt PE 14 0 S 60 120 2 o 2 E 5 0 10 0 3 S 40 8 0 4 3 0 6 0 2 0 4 0 1 04 Hb20 0 0 no aaa TI e Saa aa eN 0 100 200 300 400 500 600 700 800 900 1000 Samples Hardware connected Data Read Success 4 2 1 Scope Options Holding the mouse cursor over the top right corner of the Scope or the Histogram plot displays the plot settings options available to the user which include play pause zoom in out pan print save and waveform settings 20 0 18 0 Rev 1 14 MAXREFDES24EVSYS User Manual 5 Hardware Description This section provides more information on the hardware design of the three boards including schematics bill of materials and PCB layout files 5 1 MAXREFDES24 The MAXREFDES24 reference design is a 4 channel analog output AO subsystem that generates controlled voltages or current loop signals using four 4 output conditioners MAX15500 and a 4 channel 16 bit DAC MAX5134 For maximum performance an ultra high precision 4 096V voltage reference MAX6126 is included A 600Vams digital isolator MAX14850 power transformer and flyback controller MAX17498 provide the necessary isolated data and power connections to the analog sub syst
8. ata communication to the board A universal power adaptor is included for providing 24V DC power To exercise the AO reference design a USB powered signal capture board MAXADCLite2 utilizing one of Maxim Integrated s 12 bit analog to digital converters ADCs is also included The simple tool provides two inputs capable of measuring unipolar analog control signals up to 10V or 20mA with selectable termination resistor Windows based graphical user interfaces GUIs communicate with the boards for generating and capturing various signal test patterns An intuitive alarm interface is also provided for demonstrating the digital diagnostics capabilities of the MAX15500 output conditioners 1 1 Ordering Information PART DESCRIPTION MAXREFDES24EVSYS Bundled kit for PC evaluation of MAXREFDES24 Denotes a ROHS compliant device that may include lead that is exempt under the ROHS requirements 1 2 Package Contents The MAXREFDES24EVSYS kit includes the following e MAXREFDES 24 reference design board Pmod compatible e Universal 24VDC power supply with international plugs and test clip adapter e USB2PMB1 USB to Pmod Type 2A adapter board e USB powered MAXADCLite2 signal capture board e Two 2 USB type A male to USB type B mini cables e Two 2 wires with hook clips 1 red and 1 black e USB flash drive with documentation and GUI applications e Quick Start Guide print copy Rev 1 3 MAXREFDES24EVSYS User Manual 1 3
9. em Reference Schematic 5839 Alameda _ MAXREFDES24 4 Channel_ Analog Output provides more information on the MAXREFDES24 design and includes performance test results of the reference design when used with a Xilinx development system Refer to this online document for links to the latest hardware design files test results relevant application notes and project files for select Xilinx development kits Below is a summary of the hardware design files available on the USB flash drive for the MAXREFDES24 design USB Flash Drive Bill of Materials Y PCB Source Files Schematics PDF Layout PDF Layout Gerber LASS 5 2 MAXADCLITE2 The MAXADCLite2 board utilizes a low power 2 channel 12 bit ADC MAX11645 with an input circuit that offers basic input protection selectable current loop termination jumpers J4 J9 and a divide by 5 resistor ladder for scaling analog signals up to 10V to levels compatible with the ADC s 2 048V internal reference A microcontroller MAXQ622 provides bridge functionality between a USB HID interface and IFC compatible bus The described limitations are reflected by the suffix Lite in the name of the board For more information on the MAX11645 and full evaluation kits go to www maximintegrated com MAX11645 5 3 USB2PMB1 The USB2PMB1 board uses the FT2232HL a USB 2 0 high speed 480Mbps to UART FIFO IC to process commands sent by a GUI application running on the PC The design integrates a 4K MI
10. erial Bus controllers ig Generic USB Hub jg USB Root Hub E p USB Serial Converter A 0 9 USB Serial Converter If your PC does not find the FTDI driver files on the local hard disk drive locate and reference the USB2PMB1 Drivers subdirectory on the USB flash drive to install FTDI s D2XX driver 3 4 MAXADCLite2 to PC Connect one of the provided USB cables between the MAXADCLITE2 board and PC The on board controller presents itself to the PC as a USB HID class device in the Windows Device Manager as shown below and does not require any third party drivers E DVD CD ROM drives A J PB a la HID compliant device Human Interface Devices ha la USB Input Device gt Ey IDEATA ATAPI controllers gt gt IEEE 1394 Bus host controllers Rev 1 7 MAXREFDES24EVSYS User Manual 3 5 Analog Signal Connections The diagram below shows an example connection between an analog output OUT1 on MAXREFDES24 and an analog input AINO on MAXADCLITE2 along with the ground connection between the two analog grounds AGND All analog grounds are tied together on MAXREFDES24 06 MAXREFDES24 The jumpers shown above for the MAXREFDES24 select between 5 default and 20 overrange modes while the jumpers shown for MAXADCLITE2 select the on board termination resistor for testing current loops The following table summarizes the analog output signal ranges for the MAXREFDES24 design along with the required hardware jumper
11. maxim integrated MAXREFDES24EVSYS User Manual Rev 1 1 15 MAX15500 Windows PC MAXREFDES24 SIGNAL CONDITIONERS REFDES24 ADCLITE2 nace ANALOG SIGNAL pie LDO MAX6126 VREF CAPTURE OUTPUT GUI GUI Es MAX17498 MAX14850 20 30VDC FLYBACK DIGITAL gt 150mA CONTROL ISOLATOR ee sx MAX5134 4 CHANNEL 16 BIT DAC USB2PMB1 FT2232HL USB CONTROL AND MAX1556 CONTROLLER DIAGNOSTICS DC DC MAXADCLITE2 MAX8511 MEASUREMENT MAXQ622 MAX11645 2 CHANNEL CONTROLLER 12 BIT ADC For pricing delivery and ordering information please contact Maxim Direct at 1 888 629 4642 or visit Maxim Integrated s website at www maximintegrated com Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product No circuit patent licenses are implied Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time 2015 Maxim Integrated Products Inc Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products Inc MAXREFDES24EVSYS User Manual Table of Contents NEF OG UGCTIO NR ina vet ceeevneuceneedetaceuanseeueueessedaven 3 1 1 Ordenado ados a ide iii 3 2 Package COMIC INS a a a a eet duh a a nian 3 13 PROS AQUINO iia 4 14 F nctional Dto 1 AAPP A O POE aa 4 15 Quick StarblastuclioOAS msi ota n ais aaa Dira cacao cidade 4
12. nnected to USB2PMB1 Also make sure 24VDC is applied to the MAXREFDES24 board 10 MAXREFDES24EVSYS User Manual 4 1 2 MAX15500 Output Conditioners Following USB connection the MAX15500 Output Conditioners section will refresh to show the default configuration and initial error states of the MAX1550 devices Upon any power up or supply brownout condition the Supply Brownout alarm is expected A red LED on the MAXREFDES24 hardware will also be on A subsequent Refresh of the MAX15500 Output Conditioners section will clear the alarm One can set the Brownout threshold in 2V increments from 10V to 24V In the MAXREFDES24 design a brownout threshold of 24V triggers a Supply Brownout alarm MAX 15500 Output Conditioners Conditioner 1 Conditioner 2 Configuration Error States Configuration Error s Y Intermittent Fault Intermittent Fault Mode Standby Intermittent Fault Mode ae Intermittent Fault Short Circuit Short Circuit Brownout 10V Open Load Brownout 10V Open Load Thermal Protection Conditioner 3 Configuration Mode Standby 10V Brownout Thermal Protection Overtemperature O Supply Brownout Error s Intermittent Fault Short Circuit Open Load Overtemperature Supply Brownout Thermal Protection Conditioner 4 Configuration Mode Stand by 10V Brownout Thermal Protection Q Overtemperature Q Supply Brownout Erroris Intermitte
13. nt Fault Short Circuit Open Load Overtemperature Supply Brownout Refresh Apply Refresh On Apply The default mode upon power up for the analog outputs is Standby with a 10V brownout threshold and thermal protection disabled Use the Configuration sections to configure the on board MAX15500 signal conditioners to output common industrial control signal ranges current or voltage and to read back any error conditions the MAX15500 report e Use the Refresh button to read and refresh the Configuration and Error s status of the MAX15500 devices e Use the Apply button to write the displayed configuration to the MAX15500 devices Enable Refresh On Apply to immediately issue a read or Refresh command following a write or Apply Refresh Apply v Refresh On Apply Rev 1 14 MAXREFDES24EVSYS User Manual Common error states and their meaning are summarized below Refer to the MAX15500 IC data sheet for full details on the error detection capabilities and register behavior Error States Error States Error States Intermittent Fault Intermittent Fault Intermittent Fault O Short Circuit Short Circuit Short Circuit Open Load Open Load Open Load Overtemperature Overtemperature Overtemperature Supply Brownout Supply Brownout Supply Brownout When operating in voltage When operating in current lf the Intermittent Fault error is modes the Short Circuit error is modes the Open Load error is
14. settings See the Graphical User Interfaces section for all other mode controls MAX15500 OVERRANGE CONTROL MAXADCLITE2 FSMODE SENSER AIN JU1 JU3 JU2 JU4 TERMINATION JU5 JU7 JU6 JU8 J4 J9 0 20mA 5 140uA to 21mA A 2 3 20mA 5 21mA to 21mA Jumper Closed Don t Care OUTPUT SIGNAL RANGE 0 20mA 20 150uA to 24mA 5000 Load 20mA 20 24mA to 24mA 0 5V 5 0 28V to 5 36V Jumper 1 2 0 10V 5 0 56V to 10 71V 0 5V 20 0 31V to 6 08V Don t Care 0 10V 20 0 63V to 12 16V Jumper 2 3 10V 20 12 28V to 12 28V Note the output range of the MAXREFDES24 analog outputs exceeds the input range capabilities of the MAXADCLITE2 board which only supports unipolar signals up to 10V or 20mA Signals outside of this range will be clamped by on board protection diodes Jumper i2 1 2 Jumper Open 1kQ Load Rev 1 8 MAXREFDES24EVSYS User Manual 4 Graphical User Interfaces Before launching the GUI applications make sure the USB2PMB1 and MAXADCLITE2 boards are connected to the PC as described in the previous section 4 1 GUI for MAXREFDES24 With the USB2PMB1 board connected run double click the 4 Ch_Analog_Output exe file located in the IMAXREFDES241 directory of the USB flash drive Once the GUI window appears only the USB connectivity section will be active The other two sections for the analog signal chain components are grayed out until the USB connection is established teh
15. te together via a 12 pin Pmod Type 2A connector For more information on the Pmod form factor refer to the Digilent Pmod Interface Specification or visit www Digilentinc com e A pair of wires with test clips is provided for establishing an analog control signal between one of the MAXREFDES24 outputs and one of the MAXADCLite2 inputs 24VDC MAXREFDES24 4 CHANNEL ANALOG OUTPUT REFERENCE DESIGN USB2PMB1 MAXADCLITE2 VOLTAGE CURRENT CAPTURE BOARD 3 1 USB2PMB1 to MAXREFDES24 Connect the MAXREFDES24 board to the USB2PMB1 adapter as shown above Both 12 pin connectors should be on the same side of the PCB when mated together 3 2 24VDC to MAXREFDES24 Connect the color coded test clips of the DC power adapter to the MAXREFDES24 board as shown above Red clips connect to 24V and black clips connect to PGND Rev 1 6 MAXREFDES24EVSYS User Manual 3 3 USB2PMB1 to PC Connect one of the USB cables between the USB2PMB1 board and PC The USB2PMB1 adapter board includes an FTDI FT2232HL USB controller IC that performs the USB functions and conversion to SPI Upon attaching the USB2PMB1 adapter board to the PC the Found New Hardware Wizard automatically launches and installs the appropriate driver files Multiple drivers will be installed before it is ready to use To verify proper installation one should see two USB Serial Converters A and B in the Device Manager as shown below JE System devices a Y Universal S
16. tes driver installation See the Graphical User Interfaces section for screenshots and user information e 4 Channel Analog Output GUI utilizes the USB2PMB1 adapter for exercising the digital interface of the MAXREFDES24 design This includes the SPI port of the MAX5134 4 channel DAC and multiple MAX15500 output conditioners This GUI application utilizes the NET 4 0 platform and does not require installation of any Maxim Integrated software e MAXADCLite2 GUI for capturing analog test signals with the MAXADCLITE2 board in order to evaluate the performance of the AO reference design This application does not require installation If only two 2 USB ports are available copy the USB flash drive contents directly to your local hard drive or download the USB flash drive contents from www maximintegrated com MAXREFDES24 Rev 1 5 MAXREFDES24EVSYS User Manual 3 Hardware Connections This section describes the basic connections with the MAXREFDES24EVSYS kit e The user must provide a Windows PC with two available USB ports and an AC outlet for operating the MAXREFDES24EVSYS kit In addition to providing PC communications the USB ports power the USB2PMB1 and MAXADCLite2 boards e A universal AC wall adapter and test clip adapter are included for providing 24V DC to the MAXREFDES24 analog output board Any DC supply with 20 30V DC and gt 150mA output capabilities can be substituted for the AC wall adapter e The MAXREFDES24 and USB2PMB1 boards ma
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