Rugged portable amplifier for multiple applications
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.
Interested in more?
Our products are scientific equipment for INVESTIGATIONAL USE ONLY! Medical use e.g. for diagnosis, treatment of disease or other such purposes is strictly forbidden.
|Number of channels||32|
|Channel type / reference||Referential channels/acquisition of a reference using a single electrode (unipolar)|
|Input impedance||10 MOhm (for DC)|
|Input noise||≤ 2 μVpp|
|Common-mode rejection (CMR)||≥ 90 dB|
|Lower cutoff frequency (high pass)||0.016 Hz / 10s|
|Filter type||First-order filter with 6 dB/octave|
|High-cutoff frequency (low-pass)/time constant||1000 Hz|
|Filter type||Fifth-order Butterworth filter with 30 dB/octave|
|Measuring range||± 3.28 mV|
|Resolution||0.1 μV per bit|
|Power supply||PowerPack (external rechargeable battery)|
|Power consumption (in operation)||Max. 110 mA|
|Power consumption (in standby)||typically 7 mA|
|Suitability for use in the scanner room||No|
|Amplitude accuracy||± 2%|
|Bit width of the A/D converter (EEG and AUX)||16 bit|
|Sampling rate||5 kHz per channel|
|DC offset tolerance||± 300 mV|
|Signal transmission||Optically coupled using duplex fiber optic cables|
|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|
|Integrated impedance measurement||Present;
measurement includes ground electrode and reference electrode
|Locking of unused channels||Present|
|CE marking||The Brain Products GmbH confirms the electromagnetic compatibility (EMC) of this product according to the Directive 2014/30/ EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility.
The Brain Products GmbH confirms the RoHS compliance of this product according to Directive 2011/65/EU of the European Parliament and the Council of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (recast published in the Official Journal of the European Union on 1 July 2011) as well as all its amendments up to and including the Commission delegated directive (EU) 2015/863 of 31 March2015 (published in the 0fficial Journal of the European Union on 4 June 2015).
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Manual, Tutorials & Downloads (only for registered users)
Press Release Articles
Hyperscanning series part 1: How to do hyperscanning with BrainAmps
by Dr. Alex Kreilinger
Communication with the trigger port: A beginner’s guide
by Dr. Robert Störmer
Brain Products LSL on GitHub
by Dr. Alex Kreilinger
New adaptors to easily combine Brain Products and EGI hardware
by Dr. Christina Florence Lavallée
New user manuals for the BrainAmp series of amplifiers
by Dr. Tracy Warbrick
Complete make-over: The new operating instructions for BrainAmp & BrainAmp MR
by Katja Wust
Type: pdf Size: 170.6 KB
the dualBUA - an introduction
by Pierluigi Castellone
Type: pdf Size: 376.5 KB
Did you know how to set up the digital port settings for a BrainAmp?
by Katja Wust and Dr. Davide Riccobon
Type: pdf Size: 1.3 MB
Easy, Easier, the new EIB64-A
by Dr. Baris Yesilyurt
Type: pdf Size: 1.2 MB
BCI2000 – A Flexible Platform for Brain-Computer Interface Research
by Jürgen Mellinger and Gerwin Schalk
Type: pdf Size: 1.2 MB
Brain Products devices are supported in the OpenViBE program for BCI research
by Yann Renard
Type: pdf Size: 1.7 MB