For more information or to speak with the
Brain Vision Scientific Consulting Team dial
(877) EEG-4MRI or schedule a call
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The BrainAmp amplifier is a compact solution for neurophysiology research that can be combined with other units within the same product family to cover a vast range of possible application areas. This fully portable solution can be used for standard EEG/ERP recordings but also for other types of acquisitions even in the “outside” world.
Thanks to its 5 kHz sampling rate per channel, the BrainAmp can be used to record EEG, EOG, EMG signals as well as evoked potentials with a frequency up to 1 kHz. The 16 bit TTL trigger input allows the detection of a large number of markers from visual, accoustic, electrical, magnetic or other stimulation modalities.
The BrainAmps can be used both with passive and active electrodes offering a great degree of flexibility and is powered by a rechargeable battery, the PowerPack.
The 32 channel units can be stacked to expand the number of channels up to 256 and combined with the BrainAmp ExG to record EOG, ECG, EMG and other peripheral signals such as GSR (Galvanic Skin Response), respiration, acceleration, temperature, etc.
| BrainAmp Standard | Technical specifications |
|---|---|
| Amplifier | |
| Number of channels (per unit) | 32 |
| Channel type / reference | Referential channels/acquisition of a reference using a single electrode (unipolar) |
| Sampling rate | 5 kHz per channel |
| Resolution | 0.1 μV per bit |
| Measuring range | ±3.28 mV |
| BrainAmp Standard | Technical specifications |
|---|---|
| Amplifier | |
| 16 bit TTL (LVTTL) signals, 0 to +5 V (+ 3.3 V), max. 10 mA | 16 bit TTL (LVTTL) signals, 0 to +5 V (+ 3.3 V), max. 10 mA |
| Input impedance | 10 MΩ (for DC) |
| Filter type | First-order filter with 6 dB/octave |
| Lower cutoff frequency (high pass) | 0.016 Hz/10 s |
| Filter type | Fifth-order Butterworth filter with 30 dB/octave |
| High-cutoff frequency (low-pass)/time constant | 1,000 Hz |
| Input noise | ≤ 2 μVpp |
| Common-mode rejection (CMR) | ≥ 90 dB |
| Bit width of the A/D converter (EEG and AUX) | 16 bit |
| Amplitude accuracy | ±2% |
| DC offset tolerance | ±300 mV |
| Integrated impedance measurement | Present; measurement includes ground electrode and reference electrode |
| Signal transmission | Optically coupled using duplex fiber optic cables |
| Power Supply | PowerPack (external rechargeable battery) or Mains Power Supply for BrainAmp |
| Power consumption (in operation) | Max. 110 mA |
| Power consumption (in standby) | Typically 7 mA |
| Operating time between charges | Typically 30 hours with one amplifier, 15 hours with two amplifiers |
| Dimensions (H x W x D) | Approx. 68 mm x 160 mm x 187 mm |
| Weight | Approx. 1.1 kg |
| Unlocking function | Present |
| Locking of unused channels | Present |
| Suitable for use in MR scanner room | No |
For more information or to speak with the
Brain Vision Scientific Consulting Team dial
(877) EEG-4MRI or schedule a call
Billing address:
Brain Vision, LLC
1204 Village Market PL #300
Morrisville, NC 27560
Shipping address:
Brain Vision, LLC
515 N. Greenfield Parkway, Suite 100
Garner, NC 27529
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