OmniPlex Neural Recording Data Acquisition System

OmniPlex® Neural Recording Data Acquisition System is Plexon’s flagship electrophysiology (a.k.a. ephys) research system. This system combines front-end amplification and acquisition with intuitive and powerful control and visualization software.

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OmniPlex Neural Recording Data Acquisition System

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The OmniPlex System is a compact, flexible platform for high performance data acquisition and powerful online spike sorting. It offers low latency, superior common-mode rejection amplification and is well known for its user-friendliness. The OmniPlex System is a combination of the OmniPlex chassis, OmniPlex Software, and a Digital Headstage Processor (DHP) acquisition subsystem – all described below. Other versions of the OmniPlex system could utilize an OmniAmp or DigiAmp A/D device.

  • The compact OmniPlex chassis is available in two sizes, Rack Mounted and Table Top, and houses cards for synchronization and timing between system components, acquisition subsystem links, digital inputs, and auxiliary analog inputs for non-neural experiment signals.
  • digital headstage processor for neural recording, omniplex, plexon, ephysThe OmniPlex System Controller operates the OmniPlex Software consisting of OmniPlex Server, the “software engine” for neural signal processing, and PlexControl, which is the main user interface providing data visualization and the user interface for interacting with the system.
  • The Digital Headstage Processor (DHP) for use with digital headstages is Plexon’s most advanced acquisition subsystem. The DHP now enables up to 512 channels of neural recording, decreased sensitivity to ambient electrical noise, and lighter headstage cables with fewer wires for greater freedom of animal movement. Further, it offers real-time upsampling to 40KHz and adjustment of multiplexer timing offsets (equivalent to simultaneous sampling) for improved sorting quality, trodal acquisition and software referencing – unlike other digital headstage based systems.
  • Alternatively, the predecessor to the DHP is Plexon’s DigiAmp™ acquisition subsystem for analog headstages. The DigiAmp Digitizing Amplifier is available in two sizes: the MiniDigi™ for 16, 32, 48 and 64 channels, and the DigiAmp for 64, 128, 192 and 256 channels. This acquisition subsystem is recommended when using analog headstages. Both provide 16-bit A/D conversion at 40kHz per channel for acquisition of the complete wide-band signal. Flexible digital filtering supports a wide variety of filter types (Bessel, Butterworth, Elliptic, 2-12 poles, plus adaptive power line noise filter) and cutoff frequencies, for extracting spikes and field potentials from the wide-band signal and for noise removal.
  • The DHP and the DigiAmp digitizing amplifier are both electrically isolated.
  • All acquisition subsystems can be remotely located up to 25 feet from the OmniPlex chassis for convenience in placing at behavioral enclosures, arenas, rooms, etc. The acquisition subsystem is self-contained; no power cords needed.

Sorted spike and continuous data acquired by the OmniPlex System is available to external clients (developed through the C/C++ or MATLAB® software development kits (SDKs) as soon as 1-2 milliseconds after acquisition. This figure is the actual end-to-end latency through the entire OmniPlex System from spike detection input to hardware output, including an online user client program.

    The DigiAmps and all modules in the chassis are synchronized via a high-resolution master timing module. The same master timing module can be extended to synchronize timestamps with compatible equipment such as Plexon’s CinePlex® Behavioral Research System.

    Learn more about the the powerful online spike sorting software for the OmniPlex System that has a flexible and customizable main user interface.

    A Plexon Sales Engineer is happy to discuss your needs and how the OmniPlex could best support your ephys research goals.


    The OmniPlex System is a compact, flexible platform for high performance data acquisition and powerful online spike sorting. It offers low latency, superior common-mode rejection amplification and is well known for its user-friendliness. The OmniPlex System is a combination of the OmniPlex chassis, OmniPlex Software, and a Digital Headstage Processor (DHP) acquisition subsystem – all described below. Other versions of the OmniPlex system could utilize an OmniAmp or DigiAmp A/D device.

    • The compact OmniPlex chassis is available in two sizes, Rack Mounted and Table Top, and houses cards for synchronization and timing between system components, acquisition subsystem links, digital inputs, and auxiliary analog inputs for non-neural experiment signals.
    • digital headstage processor for neural recording, omniplex, plexon, ephysThe OmniPlex System Controller operates the OmniPlex Software consisting of OmniPlex Server, the “software engine” for neural signal processing, and PlexControl, which is the main user interface providing data visualization and the user interface for interacting with the system.
    • The Digital Headstage Processor (DHP) for use with digital headstages is Plexon’s most advanced acquisition subsystem. The DHP now enables up to 512 channels of neural recording, decreased sensitivity to ambient electrical noise, and lighter headstage cables with fewer wires for greater freedom of animal movement. Further, it offers real-time upsampling to 40KHz and adjustment of multiplexer timing offsets (equivalent to simultaneous sampling) for improved sorting quality, trodal acquisition and software referencing – unlike other digital headstage based systems.
    • Alternatively, the predecessor to the DHP is Plexon’s DigiAmp™ acquisition subsystem for analog headstages. The DigiAmp Digitizing Amplifier is available in two sizes: the MiniDigi™ for 16, 32, 48 and 64 channels, and the DigiAmp for 64, 128, 192 and 256 channels. This acquisition subsystem is recommended when using analog headstages. Both provide 16-bit A/D conversion at 40kHz per channel for acquisition of the complete wide-band signal. Flexible digital filtering supports a wide variety of filter types (Bessel, Butterworth, Elliptic, 2-12 poles, plus adaptive power line noise filter) and cutoff frequencies, for extracting spikes and field potentials from the wide-band signal and for noise removal.
    • The DHP and the DigiAmp digitizing amplifier are both electrically isolated.
    • All acquisition subsystems can be remotely located up to 25 feet from the OmniPlex chassis for convenience in placing at behavioral enclosures, arenas, rooms, etc. The acquisition subsystem is self-contained; no power cords needed.

    Sorted spike and continuous data acquired by the OmniPlex System is available to external clients (developed through the C/C++ or MATLAB® software development kits (SDKs) as soon as 1-2 milliseconds after acquisition. This figure is the actual end-to-end latency through the entire OmniPlex System from spike detection input to hardware output, including an online user client program.

      The DigiAmps and all modules in the chassis are synchronized via a high-resolution master timing module. The same master timing module can be extended to synchronize timestamps with compatible equipment such as Plexon’s CinePlex® Behavioral Research System.

      Learn more about the the powerful online spike sorting software for the OmniPlex System that has a flexible and customizable main user interface.

      A Plexon Sales Engineer is happy to discuss your needs and how the OmniPlex could best support your ephys research goals.

      Headstages

      Plexon offers a variety of analog and digital headstages for various acute or chronic research needs that are suitable for both large and small animals. Including new 64 and the 128 channel high channel count digital headstages with novel Samtec connectors.

      Analog Headstages

      Digital Stimulating Headstages


      Combine Electrophysiology with


      Behavioral Tracking

      Seamlessly integrate behavioral tracking with our OmniPlex Neural Recording System to create time-locked events in the recording data. Plexon’s CinePlex System is the only behavioral research system that can either be operated in full synchrony with neural data acquisition, or as a stand-alone solution.

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      Optogenetics

      Integrate optogenetics with our OmniPlex Neural Recording System to create time-locked events in the recording data. Additionally, incorporating the Carousel commutator makes it possible to record neural activity and optogenetically stimulate in awake and freely moving animals.

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      Accessories


      Headstage Tester Units

      Adaptable Form Factors for Any Size Space

      The OmniPlex system can be purchased as either a rack-mounted chassis or in our smaller table-top form factor. Both options are compatible with the Digital Headstage Processor (DHP) acquisition subsystem which can be placed up to 25 feet from the OmniPlex chassis. The portability and small size of the DHP acquisition subsystem reduces the amount of space required near the animal and removes unnecessary clutter from the experimental design. Headstage cables can also be customized in order to meet individual needs.