SynAmps² Highlights

Design Features 

Headbox-Based Amplification - Analog signals, whether buffered or not, are susceptible to noise. With the SynAmps², signals are amplified and digitized right at the patient side, providing a digital signal transmission path and providing the very best signal integrity. 

70 Channel Headbox Units - Allows you to use ALL of your channels. The SynAmps² offers two external auxiliary and four bipolar inputs in addition to the standard 64 channels per headbox. You don't have to convert bipolar channels to monopolar to get your full montage. 

Check Electrode Impedances Right at the Headbox - Electrode impedances are checked against a user-selectable threshold and the results are instantly available at the headbox. 

Compact System Design - Each system consists of one or more headboxes, weighing in at less than 5 lbs, a system unit and a power unit. System and power units will handle multiple headboxes for high-density recordings. 

Up to 256 EEG Channels on a Single Small System Unit - A single system unit will handle up to four head boxes, creating a 256 channel system in about one quarter the space of the original SynAmps unit. Combine two system units to create a super-high density system. 

Standard Windows Computer and USB 2.0 Interface - Plug and play operation makes connection and setup easy and fast. No proprietary analog to digital, PCI or data interface cards need to be installed, complicating the system. The industry standard USB 2.0 interface will allow you to move to another PC easily. 

Quik-Caps from Neuromedical Supplies Connect Directly - Conversion (EBA) cables are no longer required for cap connection. Neuromedical Supplies Quik-Caps connect directly to the quick-disconnect high-density connector on each headbox for no-problem patient setup. Touch Proof connections for each channel are also provided.

Technical Features 

24-Bit Data Conversion - Even within all the excellent high-bit count analog to digital (A/D) converters currently on the market, we"ve specially selected the quietest product available for use in the new SynAmps², delivering the best signals with the greatest dynamic range possible. You demand clean, high-resolution data and we deliver it. Data from the SynAmps² also flows seamlessly through to the new 32-bit version of Scan. 

Active Noise Cancellation - Provides unparallel noise immunity. This ensures an accurate representation of the neurophysiological activity even in the most hostile electromagnetic environments 

10G Ohm Input Impedance - The very best in instrumentation amplifier technology is used to ensure that your signals are faithfully recorded. 

External (auxiliary) Sensors can be Connected With Ease - Two external inputs per headbox come standard. Both are isolated from patient and computer connections with a+/-5 volt input range. Data is time locked with the EEG data. 

External (auxiliary) Sensors Require No External Power - Sensors can be powered from the headbox. up to +/-10V at 100mA. This enables use of strain gauges and a wide range of input devices where the output is time locked to the acquired data. 

Bandwidth/Acquisition Rates for the Studies You Want to Run - You want the capability to go from GSR to ABR in one instrument. If you need extra bandwidth and higher acquisition rates, SynAmps² should be your device of choice. With SynAmps², you will never wonder if part of the signal you needed for source or other analysis is above the bandwidth of your data collection device. 
 
Advanced Impedance Technology - Enables the use of advanced impedance modeling techniques and allows you to obtain impedance of the reference electrode in addition to the typical recording channels.

System Integration Features

Built-In Compatibility With Other Neuroscan Products - The seamless system integration that you've come to expect from Neuroscan continues with SynAmps². A totally integrated system including amplifier, data acquisition, stimulus generation, data analysis, and source analysis means that you spend your time doing research, not putting systems together.

Backwards Compatibility With Your Existing STIM or Other Stimulus Generation Programs - SynAmps² uses the same trigger connector that the original SynAmps and NuAmps use, so there is no need to modify your existing stimulus protocols.

MagLink Compatibility - SynAmps² was designed with the difficulties of recording in the MRI in mind. Specific engineering considerations were built in to the system to provide the best possible recordings in the MRI.

Advanced De-blocking Circuitry - Allows for recording of TMS and other high intensity stimuli, maximizing the data integrity without affecting the amplifier.

Extended Cabling Systems - Allows your headbox to be positioned up to 10m away from the system unit for maximum flexibility. Cabling and filters for shielded room patch panels will also be available.

Head box Mounting Options - Multiple mounting options, including wall, tripod and table mount, ensure that head box can be secured in your recording environment.

Integrated Power Supply - In addition to powering the SynAmps², the power unit will allow you to power up to 4 additional devices, ensuring a common ground is used in all of your patient connected equipment.

Specifications:

• Monopolar Channel Count......64 Per Headbox, 256 Per System Unit
• Bipolar Channel Count...........4 Per Headbox, 16 Per System Unit
• High Level Channel Count.....2 Per Headbox, 8 Per System Unit
• Maximum Sampling Rate.......20,000 Hz / Channel all channels driven
• Sampling Method..................All Channels Sampled Simultaneous
• A/D Resolution.....................24 Bit
• Input Impedance..................10 GOhms
• CMRR...................................108 dB
• Input Noise...........................4 uVpp, .01 - 100 Hz
• Bandwidth...........................DC to 3500 Hz
• Low Pass Filter (Maximum)..-3 dB at 3500 Hz, single pole
• High Pass Filter (Minimum)...DC or -3 dB at .05 Hz, single pole
• Full Scale Input Range (DC Mode).....+/- 200 mV
• System Gain (DC Mode)......10
• Sensitivity (DC Mode)..........24 nV/bit
• Full Scale Input Range (AC Mode).....+/- 995uV
• System Gain (AC Mode)......2010
• Sensitivity (AC Mode)..........3 nV/bit
• Digital (TTL) Inputs...............8 Bit Stimulus, 8 Bit Response
• High Level Input Range........+/- 5 V
• Impedance Measurement.....1K Ohm to 50 K Ohm
• IMRR....................................127 dB
• Headbox Size (h x w x d)...4.5 x18.7 x 21.8cm, per 64 channels
• Headbox Weight..................1.5 kg
• System Unit Size.................23 x 11.6 x 32.5 cm per 256 channels
• System Unit Weight.............4.3 kg
• Power Unit Size..................23 x 11.6 x 32.5 cm per 256 channels
• Power Unit Weight..............12.5 kg
• Device Certification
• EU Risk Classification 2B
• Type CF
• FDA Class II
• FDA Product Code GWQ, GWP, GWF, GWE, GWJ
• Safety Specifications
• EN 60601-1 Medical Electrical Devices - General Requirements for Safety
• UL2601.1 - Including US National Deviations for IEC601-1
• CSA22.2 - Including Canadian National Deviations for IEC601-1
• EN 60601-1-1 - Collateral Standard - Systems
• EN 60601-1-2 - Collateral Standard - Electromagnetic Compatibility
• EN 60601-1-4 - Collateral Standard - Programmable Systems
• EN 60601-2-26 - Specific requirements for electroencephalographs

Configuration:

Offered in or 64 monoplar channel models. Can be chained together for simultaneous acquisition of 64, 96, 128 or 256 monopolar channels.

REQUIRED SOFTWARE:

SCAN/ESI 4.3 (or greater)