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M4x.4450-x4 | Spectrum

14 bit high speed digitizer

  • 500 MS/s on 2 channels
  • Simultaneously sampling on all channels
  • Separate ADC and amplifier per channel
  • Up to 3 synchronous digital channels with multi-purpose I/O
  • 2 GSample on-board memory as standard
  • 6 input ranges: +/-200 mV up to +/-10 V
  • Window, re-arm, OR/AND trigger
  • PXIe x4 Gen 2 Interface
  • Sustained streaming mode more than 1.7 GB/s
  • Works with all PXIe and PXI hybrid slots
  • PXIe 3U format, 2 slots wide

Application Examples

  • High Energy Physics
  • Research and Development
  • Radar
  • Spectroscopy
  • Laser Applications

General Information

The M4x.44xx-x4 series digitizers deliver the highest performance in both speed and resolution. The series includes PCIe cards with either two or four synchronous channels where each channel has its own dedicated ADC. The ADC’s can sample at rates from 130 MS/s up to 500 MS/s and are available with either 14 bit or 16 bit resolution. The combination of high sampling rate and resolution makes these digitizers the top-of-the-range for applications that require high quality signal acquisition.

The PXIe digitizers feature a interface with PCI Express x4 Gen 2 interface that offers outstanding data streaming performance. The interface and Spectrum’s optimized drivers enable data transfer rates in excess of 1.7 GB/s so that signals can be acquired, stored and analyzed at the fastest speeds. While the cards have been designed using the latest technology they are still software compatible with the drivers from earlier Spectrum digitizers. So, existing customers can use the same software they developed for a 10 year old 200 kS/s multi-channel card and for an M4x series 500 MS/s high resolution digitizer!

ABA Mode

The optional ABA mode combines slow continuous data recording with fast acquisition on trigger events. The ABA mode works like a slow data logger combined with a fast digitizer. The exact position of the trigger events is stored as timestamps in an extra memory.

FIFO mode

The FIFO mode is designed for continuous data transfer between measurement board and PC memory or hard disk. The read (acquisition) transfer rate reached depends on the motherboard and can be up to 1.7 GByte/s on a PXI Express x4 Gen2 slot. The control of the data stream is done automatically by the driver on interrupt request. The complete installed on-board memory is used for buffer data, making the continuous streaming extremely reliable.

Block Average (Optional)

The Block Average Module improves the fidelity of noisy repetitive signals. Multiple repetitive acquisitions with very small dead-time are accumulated and averaged. Random noise is reduced by the averaging process improving the visibility of the repetitive signal.

Block Statistics (Optional)

The Block Statistics and Peak Detect Module implements a widely used data analysis and reduction technology in hardware. Each block is scanned for minimum and maximum peak and a summary including minimum, maximum, average, timestamps and position information is stored in memory.

Boxcar Average

The Boxcar averaging function smooths out high frequency noise to give a clear signal. It is most useful in situations where signals have been oversampled and it can be used to increase vertical resolution, lower noise and improve dynamic characteristics such as signal-to-noise ratio (SNR) and spurious free dynamic range (SFDR). It uses a mathematical signal processing function to effectively recalculate the vertical value of each acquired data point by averaging it with adjacent sample points.

Ring buffer mode

The ring buffer mode is the standard mode of all acquisition boards. Data is written in a ring memory of the board until a trigger event is detected. After the event the posttrigger values are recorded. Because of this continuously recording into a ring buffer there are also samples prior to the trigger event visible: Pretrigger = Memsize - Posttrigger.

Channel Trigger

The data acquisition boards offer a wide variety of trigger modes. Besides the standard signal checking for level and edge as known from oscilloscopes it's also possible to define a window trigger. Trigger conditions can be combined with logical conjunctions like OR to adopt to different application scenarios.

External Trigger

All boards can be triggered using a separate external trigger signal with a two level programmable window comparator and a second separate external trigger with a single programmable level comparator. It's possible to use positive or negative edge. An internally recognized trigger event can - when activated by software - be routed to a multi purpose i/o connector to start external instruments.

Gated Sampling

The Gated Sampling option allows data recording controlled by an external gate signal. Data is only recorded if the gate signal has a programmed level. In addition a pre-area before start of the gate signal as well as a post area after end of the gate signal can be acquired. The number of gate segments is only limited by the used memory and is unlimited when using FIFO mode.

Multiple Recording

The Multiple Recording option allows the recording of several trigger events with an extremely short re-arming time. The hardware doesn't need to be restarted in between. The on-board memory is divided in several segments of the same size. Each of them is filled with data if a trigger event occurs. Pre- and posttrigger of the segments can be programmed. The number of acquired segments is only limited by the used memory and is unlimited when using FIFO mode.

Timestamp

The timestamp option writes the time positions of the trigger events in an extra memory. The timestamps are relative to the start of recording, a defined zero time, externally synchronized to a radio clock, or a GPS receiver. With this option acquisitions of systems on different locations can be set in a precise time relation.

High Precision PLL

The internal sampling clock of the card is generated using a high precision PLL. This powerful device allows to select the sampling rate with a fine step size making it possible to perfectly adopt to different measurement tasks. Most other cards on the market only allow the setup of fixed sampling rates like 100 MS/s, 50 MS/s, 25 MS/s, 10 MS/s, ... without any possibility to set the sampling rate to any value in between.

Reference Clock

The option to use a precise external reference clock (normally 10 MHz) is necessary to synchronize the board for high-quality measurements with external equipment (like a signal source). It's also possible to enhance the quality of the sampling clock in this way. The driver automatically generates the requested sampling clock from the fed in reference clock.

Selectable AC/DC Coupling

Each analog channel contains a software selectable AC/DC coupling. When using the DC coupling all frequency parts of the signal including the DC offset are acquired. Selecting the AC coupling will only acquire frequency parts of the signal that are above a defined minimum bandwidth.

On-board Calibration

The on-board calibration can be run on user request and calibrates the amplifier against a dedicated internal high precision calibration source. After this calibration data is stored permanently in an on-board EEPROM and is automatically used for further acquisitions.

Programmable Input Amplifiers

The analog inputs can be adapted to real world signals using a wide variety of settings that are individual for each channel. By using software commands the input termination can be changed between 50 Ohm and 1 MOhm and one can select an input range matching the real world signal.

Selectable Input Path

For each of the analog channels the user has the choice between two analog input paths, both offering the highest flexibility when it comes to input ranges. The "Buffered" path has 1 MOhm termination that allows to connect standard oscilloscope probes to the card. The "HF" path on the other hand provides the highest bandwidth and the best signal integrity having a fixed 50 Ohm termination.

Synchronous Sampling

All acquisition cards from Spectrum are built with a completely synchronous design. Every channel has its own independent input amplifier as well as an independent ADC allowing to program all input channel related settings individually for each channel.

Selectable Low Pass Filter

Each analog channel contains a software selectable low-pass filter to limit the input bandwidth. Reducing the analog input bandwidth results in a lower total noise and can be usefull especially with low voltage input signals.

Multi Purpose I/O

All M4i cards offer three universal multi purpose I/O lines, which can be separately programmed as either input or output. When used as outputs, these lines can be used to output card status signals like trigger-armed or to output the trigger to synchronize external equipment.

3rd Party Drivers

A lot of third-party products are supported by the Spectrum driver. Choose between LabVIEW, MATLAB, LabWindows/CVI and IVI. All drivers come with examples and detailed documentation.

Programming Examples

Programming examples for C++, Delphi, Visual Basic, C#, J#, VB.Net, Java, Python and LabWindows/CVI are delivered with the driver. Due to the simple interface of the driver, the integration in other programming languages or special measurement software is an easy task.

Linux

All cards are delivered with full Linux support. Pre compiled kernel modules are included for the most common distributions like RedHat, Fedora, Suse, Ubuntu or Debian. The Linux support includes SMP systems, 32 bit and 64 bit systems, versatile programming examples for Gnu C++ as well as the possibility to get the driver sources for own compilation.

Remote Server (Optional)

Using the Spectrum Remote Server it is possible to access the M2p/M2i/M3i/M4i/M4x card(s) installed in one PC (server) from another PC (client) via local area network (LAN), similar to using a digitizerNETBOX. To operate it the remote server option has to be activated by a software license for any of the Spectrum cards in the remote system.

SBench6

SBench 6 is a powerful and intuitive interactive measurement software. Besides the possibility to commence the measuring task immediately, without programming, SBench 6 combines the setup of hardware, data display, oscilloscope, transient recorder, waveform generator, analyzing functions, import and export functions under one easy-to-use interface.

SCAPP - CUDA Interface (Optional)

The SDK option allows to directly transfer data between the Spectrum card and a NVIDA CUDA GPU card. The GPU card is optimized for parallel data processing. The package comes with a number of detailed examples like FFT or block average.

Windows

This standard driver is included in the card delivery and it is possible to get the newest driver version free of charge from our homepage at any time. There are no additional SDK fees for the classical text-based programming. All boards are delivered with drivers for Windows 7, Windows 8 and Windows 10, all 32 bit and 64 bit.

Documents
File NameInfoLast modifiedFile Size
an_pxie_introduction.pdfApplication Note: Intoduction to PXIe and PXI12.12.17640 kBytes
AN008_Legacy_Windows_Driver_Installation.pdfWindows driver installation of driver versions < 4.005.06.181 MBytes
m4x44_datasheet_english.pdfDatasheet of the M4x.44xx-x4 PXIe Digitizer Series01.03.191 MBytes
m4i_m4x_44xx_manual_english.pdfManual of M4i.44xx / M4x.44xx family01.03.1911 MBytes
m4ifirmware_blockstatistics_english.pdfM4 Series Firmware Option Data sheet: Block Statistics (Peak Detect)05.06.18286 kBytes
m4ifirmware_blockaverage_english.pdfM4 Series Firmware Option Datasheet: Block Average22.11.18338 kBytes
spa_amplifier_datasheet_english.pdfData sheet of SPA pre-amplifier05.06.18352 kBytes
spcm_ivi_english.pdfShort Manual for IVI Driver12.09.18525 kBytes
m4i_xxxx_labview_english.pdfManual for LabVIEW drivers for M4i / M4x06.06.183 MBytes
spcm_matlab_manual_english.pdfManual for MATLAB driver M2i/M2p/M3i/M4i/M4x/DN2/DN606.06.18919 kBytes
WINDOWS Drivers + Software
File NameInfoLast modifiedFile Size
spcm_drv_xp_vista_win32_v330b13487.zipM2i/M2p/M3i/M4i/M4x driver - last Version for Windows 32 XP / Vista15.11.171 MBytes
spcm_drv_xp_vista_win64_v320b11931.zipM2i/M2p/M3i/M4i/M4x driver - last Version for Windows 64 XP / Vista15.11.172 MBytes
spcm_drv_install_5.7.15745.exeM2i/M3i/M4i/M4x/M2p/DN2/DN6 driver for Windows 7, 8, 10 (32/64 bit)01.03.194 MBytes
c_header_v507b15745.zipC/C++ driver header and library files01.03.1938 kBytes
spcmcontrol_install32bit.exeSpectrum Control Center (32-bit) / Windows 7, 8, 1001.03.1920 MBytes
spcmcontrol_install64bit.exeSpectrum Control Center (64-bit) / Windows 7, 8, 1001.03.1922 MBytes
spcmcontrol_install-1.74b13503_winxp.exeSpectrum Control Center - last Version for Windows XP22.12.177 MBytes
specdigitizer.msiIVI Driver for IVI Digitizer class01.03.193 MBytes
specscope.msiIVI Driver for IVI Scope class01.03.192 MBytes
spcm_remote_install.exeWindows Installer for Remote Server Option01.03.192 MBytes
sbench6_v6.4.8b15745.exeSBench 6 (32-bit) Installer / Windows 7, 8, 1001.03.1932 MBytes
sbench6_64bit_v6.4.8b15745.exeSBench 6 (64-bit) Installer / Windows 7, 8, 1001.03.1935 MBytes
sbench6_v6.3.5b13450_winxp.exeSBench6 - last Version for Windows XP22.12.1738 MBytes
spcm_drv_labview_install.exeM2i/M2p/M3i/M4i/M4x/DN2/DN6 LabView driver installer01.03.1915 MBytes
spcm_drv_matlab_install.exeM2i/M2p/M3i/M4i/M4x/DN2/DN6 Matlab driver + examples installer20.03.193 MBytes
examples_install.exeWindows Examples (C/C++, VB, Delphi, .NET, CVI, Python ...)01.03.192 MBytes
LINUX Drivers + Software
File NameInfoLast modifiedFile Size
spcm_linux_drv_v507b15745.tgzM2i/M2p/M3i/M4i/M4x drivers (Kernel + Library) for Linux 32 bit and 64 bit01.03.196 MBytes
spcm_linux_libs_v507b15745.tgzDriver libraries (no Kernel) for Linux 32 bit and 64 bit01.03.192 MBytes
spcm_control_center.tgzSpectrum Control Center01.03.1950 MBytes
spcm_remote_server.tgzSpectrum Remote Server Linux Installer Package01.03.195 kBytes
sbench6_6.4.08b15745-2_i386.debSBench 6 Linux 32 (.deb)01.03.1925 MBytes
sbench6-6.4.08b15745-1.32bit.rpmSBench 6 Linux 32 (.rpm)01.03.1924 MBytes
sbench6_6.4.08b15745-2_amd64.debSBench 6 Linux 64 (.deb)01.03.1924 MBytes
sbench6-6.4.08b15745-1.64bit.rpmSBench 6 Linux 64 (.rpm)01.03.1923 MBytes
spcm_matlab_driver.tgzDrivers + examples for MATLAB for Linux (DEB + RPM)01.03.19171 kBytes
spcm_examples.tgzLinux Examples (C/C++, Python ...)01.03.191 MBytes
Firmware
File NameInfoLast modifiedFile Size
spcm_firmware.tgzM2i/M2p/M3i/M4i/M4x firmware update (Linux)01.03.1915 MBytes
firmware_update_install.exeM2i/M2p/M3i/M4i/M4x firmware update (Windows)01.03.1911 MBytes
Case Study
NameInfoLast modifiedFile Size
CS Mass SpectroscopyCase Study: Digitizer in Mass Spectroscopy18.01.17520 kBytes
OCT Skin Cancer ScannerOCT application for skin cancer diagnosis20.02.15342 kBytes
CS Spectrum Digitizers at DESYCase Study: Spectrum Digitizers playing vital role at DESY21.08.18959 kBytes
Product Note
NameInfoLast modifiedFile Size
Digitizer Acquisition ModesUsing modular Digitizer Acquisition Modes19.02.152 MBytes
Digitizer Front-EndProper Use of Digitizer Front-End Signal Conditioning19.02.152 MBytes
High-Res High BW DigitizersAdvantages of High Resolution in High Bandwidth Digitizers19.02.152 MBytes
hochauflösende Digitizer mit hoher BandbreiteVorteil von hoher Auflösung bei Digitizern mit hoher Bandbreite19.02.152 MBytes
General Digitizer IntroductionGeneral Introduction to Waveform Digitizers19.02.15572 kBytes
Digitizer Software IntegrationSoftware Support for Modular Digitizers19.02.15707 kBytes
SBench 6 IntroductionSBench 6 - Data Acquisition and Analysis of Digitizer Data19.02.151 MBytes
Application Note
NameInfoLast modifiedFile Size
Common Digitizer Setup ProblemsApplication Note: Common Digitizer Setup Problems to avoid18.03.161 MBytes
AN LIDAR Light Detection and RangingApplication Note LIDAR - Light Detection and Ranging22.08.18515 kBytes
Mass SpectroscopyApplication Note Mass Spectroscopy08.06.17858 kBytes
Mechanical MeasurementsMechanical Measurements Using Digitizers05.03.151 MBytes
Using Probes & SensorsUsing Probes and Sensors with Modular Digitizers09.04.15838 kBytes
RF MeasurementsRF Measurements using a modular Digitizer19.02.15818 kBytes
Signal Processing ToolsUsing Signal Processing Tools to enhance Digitizer Data19.02.151 MBytes
Solving Data Transfer Bottlenecks on DigitizersSolving Data Transfer Bottlenecks on Digitizers10.11.151 MBytes
Teaming AWG with DigitizerTeaming an Arbitrary Waveform Generator with a Modular Digitizer11.01.16897 kBytes
Ultrasonic ApplicationsUsing Digitizers in Ultrasonic Applications06.02.15602 kBytes
Digitizers as OscilloscopeUsing a Digitizer as Oscilloscope17.04.15825 kBytes
White Paper
NameInfoLast modifiedFile Size
Software block averagingUsing software based fast block averaging10.04.19633 kBytes
Boxcar Average FunctionWhite Paper 44xx Series Boxcar Average Function07.06.17778 kBytes

Contact Information