actiCHamp

Overview

Increase your neurophysiology research opportunities!

The actiCHamp is a revolutionary development that integrates high-end components for electrophysiological (EEG/ERP, ExG, BCI, etc.) research in one easy to use, highly versatile, and affordable 24-bit amplifier with up to 160 channels.

actiCHamp at a glance

24-bit battery-supplied, active channel amplifier coming along with the popular actiCAP active electrodes*
available with 32, 64, 96, 128 and 160 EEG channels
8 integrated AUX inputs can be used with a full range of biosignal sensors (e.g. GSR, EOG, EMG, ECG, respiration, acceleration, temperature, blood pulse, photo sensor, microphone, etc.)
extremely high sampling rate (up to 100 KHz) and wide hardware bandwidth
simple plug and play concept to easily increase the number of channels (by adding modules of 32 channels)
adding the BIP2AUX Adapter recording bipolar signals through the existing AUX inputs is also possible
compatible with BrainVision PyCorder (open-source) and BrainVision Recorder (commercial license) for signal recordings.
also part of our Source Analysis Bundle: ... incl. CapTrak, actiCHamp and BESA

* US patent pending

Quick Links

actiCHamp is also supported by BrainVision CapTrak (software version 1.1.0 and later)
Visit the actiCHamp/PyCorder Forum (e.g. for technical support on actiCHamp)

For further information on this product or/and to place your order, please contact your local distributor or us (Send Email).

Please note: The actiCHamp is intended to be used for research applications only and is not sold, designed or intended to be used as medical devices as defined in EU Directive 93/42/EEC, nor is it intended to be used for other medical applications such as diagnosis or treatment of disease. The hardware is freely configurable. Brain Products shall not be liable for any use other than pure scientific and research applications. The actiCHamp hardware has been tested and certified as per the relevant EMC and electrical safety standards. A non-medical CE certificate is available on request.

Technical Specifications

Technical Data
Number of channels per unit	32
Number of AUX channels	8
Max. number of channels	160 EEG + 8 AUX
Channel type / reference	EEG channels: referential channels / internal Reference
Signal coupling Lower cutoff frequency (high pass)	DC for EEG and AUX signals 0 Hz (DC)
Anti-aliasing low pass	EEG channels: 20 kHz (without label) or 8 kHz (with 8 kHz label or imprint on EEG module) AUX channels: Rev 01: 0.3 V to 4 V, as of Rev 02: Bipolar - 4.8 V to + 4.8 V
Max. bandwidth	EEG: DC - 20 kHz (Product Rev. 01) or 8 kHz (Product Rev. 02) at 100 kHz sampling frequency AUX: DC - 20 kHz at 100 kHz sampling frequency
Bit width of A/D converter	24 bit for EEG and AUX channels
Digitization	one A/D converter per channel
Input noise for EEG channels	approx. 2 μVpp (0.1 Hz – 30 Hz)
Input noise for AUX channels	< 25 µVrms at 10 kHz sample rate and 2nd order Butterworth software filter bandwidth 0.01 Hz - 3000 Hz < 10 µVrms at 1 kHz sample rate and 2nd order Butterworth software filter bandwidth 0.01 Hz - 300 Hz < 8 µVrms at 250 Hz sample rate and 2nd order Butterworth software filter bandwidth 0.01 Hz - 70 Hz
Input impedance (for DC)	EEG channels: > 1,000 MΩ AUX channels: Rev. 01: > 2,000 MΩ; as of Rev. 02: > 40 MΩ
Measurement range	0 to 100 kΩ
Input voltage range (incl. DC offset)	EEG channels: ± 409 mV AUX channels: Rev. 01: 0.3 to 4 V. As of Rev. 02: ± 4.8 V
Resolution	EEG: ≈ 0.0487 μV per bit; AUX: Rev. 01: ≈ 0.298 μV per bit as of Rev. 02: ≈ 0.596 μV per bit
Common-mode rejection (CMR)	> 100 dB
Trigger input	8 bit, D-Sub, 9 pin, female
Trigger output	8 bit, D-Sub, 9 pin, male
Connection to computer for data transfer	USB 2.0
Power supply	External battery ("actiPOWER")
Current consumption	depends on no. of channels and sampling rate
Dimensions (H x W x D)	68 mm x 160 mm x 187 mm
Weight	1.1 kg

Electrodes
Use with active electrodes	Yes, with actiCAP electrodes
Use with passive electrodes	no
Control of impedance measurement	Integrated in amplifier
Easy replacement of individual electrodes	Yes, by removing from splitter box
Filling hole for electrode gel	present

Recording Software
Max. sampling rate	100 kHz
Recording software	BrainVision Recorder (commercial license) or BrainVision PyCorder (Python-based open source software)
Max. sampling rate in combination with BrainVision PyCorder
16 channels + 8 AUX	100 kHz
32 channels + 8 AUX	50 kHz
64 channels + 8 AUX	25 kHz
96 channels + 8 AUX	10 kHz
128 channels + 8 AUX	10 kHz
160 channels + 8 AUX	10 kHz
Max. sampling rate in combination with BrainVision Recorder 1.20 (and higher)
16 channels + 8 AUX	100 kHz
32 channels + 8 AUX	100 kHz
64 channels + 8 AUX	50 kHz
96 channels + 8 AUX	25 kHz
128 channels + 8 AUX	25 kHz
160 channels + 8 AUX	25 kHz

actiPOWER
Max. number of supplied amplifiers	1
Rated voltage	6 V DC
Rated capacity	7,200 mAh
Output current	max. 2 A
Battery Type	Lead accumulator
Operating time for one amplifier	Typically 6 hours (with new and fully charged battery)
Charging time	Typically 5 hours (at room temperature with empty battery)
Dimensions (H x W x D)	68 mm x 160 mm x 187 mm
Weight	1.7 kg

Miscellaneous (actiCHamp / actiPOWER)
Suitable for use in MR scanner room	no, MR unsafe
Medical product	no
CE marking	Yes, according to EMC directive
Electrical safety	According to IEC 60601-1:2005, 3rd edition
Safety	According to IEC 60601-1:2005, 3rd edition
EMC testing	Yes, according to IEC 60601-1-2:2007 and EN 61326-1:2013

To compare the technical specifications of all amplifiers please download this pdf file:

Brain Products Amplifiers in Comparison
Type: pdf Size: 99.8 KB

Brochures

How to Set-Up the actiCHamp
Type: pdf Size: 8.5 MB

How to add more channels to the actiCHamp
Type: pdf Size: 972.7 KB

Source Analysis Bundle Flyer
Type: pdf Size: 920.8 KB

Manual, Tutorials & Downloads (only for registered users)