BrainAmp ExG
Overview
Solution for bipolar and sensor data acquisition
The simultaneous recording of EEG, bipolar as well as peripheral signals opens up new scenarios in the investigation of the mechanisms underlying for example emotional behavior. The BrainAmp ExG amplifier is a bipolar amplifier which can be used to record EMG, ECG, EOG and polygraphic channels such as GSR (Galvanic Skin Response), acceleration, temperature and blood pulse with an extremely compact design.
The BrainAmp ExG amplifier (16ch) is based on the same technology and design as the entire BrainAmp family and is therefore fully compatible with all the other members of this large family. All signals can be recorded with a sampling rate up to 5000 Hz and a broad hardware bandwidth ranging from DC to 1000 Hz. The ExG has been conceived as an extension to all the other BrainAmp amplifiers but it can also be used as a fully independent unit.
The ExG amplifier powered by a rechargeable battery, the PowerPack and can be connected to a laptop allowing it to be used anywhere and for any type of recording.
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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.
Technical Specifications
| Number of channels | 16 |
| Channel type | 8 bipolar + 8 AUX |
| Input impedance | 10 MOhm (for DC) |
| Input noise | ≤ 2 μVpp |
| Common-mode rejection (CMR) | ≥ 100 dB |
| Lower cutoff frequency (high pass) | 0 Hz in DC mode or 0.016 Hz/10 s in AC mode; switchable between AC and DC modes |
| Filter type | First-order filter with 6 dB/octave |
| High-cutoff frequency (low-pass) | 1000 Hz/250 Hz (switchable for the resolutions 0.1 μV/0.5 μV per bit) |
| Fifth-order Butterworth filter with 30 dB/octave | |
| Measuring range | ± 3.28 mV/± 16.384 mV/± 327.68 mV (switchable) |
| Resolution | 0.1 μV/0.5 μV/10.0 μV per bit (switchable) |
| Power supply | PowerPack (external rechargeable battery) |
| Power consumption (in operation) | Max. 110 mA (8 channels)/120 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 |
| Unlocking function | Present |
| Locking of unused channels | Present |
| Medical product | no |
| 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). |
Brochures
Type: pdf Size: 4.3 MB
Manual, Tutorials & Downloads (only for registered users)
Press Release Articles
4.2021
Hyperscanning series part 1: How to do hyperscanning with BrainAmps
by Dr. Alex Kreilinger
Type: Weblink
8.2020
Communication with the trigger port: A beginner’s guide
by Dr. Robert Störmer
Type: Weblink
5.2019
New user manuals for the BrainAmp series of amplifiers
by Dr. Tracy Warbrick
Type: Weblink
7.2012
Complete make-over: The new operating instructions for BrainAmp & BrainAmp MR
by Katja Wust
Type: pdf Size: 170.6 KB
