actiCHamp series

Up to 160 channels: Maximum scalability with 32 channel modules
Integrated 8 additional AUX channels for sensors

Up to 100 kHz sampling rate
Full compatibility with all our active and passive electrode systems

More details

actiCHamp Plus: Versatile all-in-one lab amplifier

actiCHamp Plus is a scalable and flexible amplifier solution for a wide range of laboratory EEG recording applications. It can be combined with all our active as well as passive electrode systems and is powered by a sturdy lithium-ion battery, the PowerUnit.

All electrode options to best fit your needs

- Record with easy-to-prepare active electrodes (actiCAP slim/snap or actiCAP Xpress Twist) for best data quality
- Easily switch to passive sponge-based electrodes (R-Net) when high channel counts and quick preparation times are crucial
- Choose gel-based passive electrodes using our fully customizable BrainCaps

Scalable solution

- Modularity for recording 32 to 160 channels
- 8 additional AUX channels for including extra physiological sensors
- Up to 100 kHz sampling rate

Highly integrated for multimodal recordings

- Clock synchronization outputs allow for easy integration with external devices (e.g. TMS, EMG)
- Forward incoming triggers to other signal acquisition systems (e.g. fNIRS)

Powered by lithium-ion technology (the PowerUnit)

- Long battery life with low self-discharge rate
- Extended recording times due to higher battery capacity

Technical specifications

actiCHamp series	Technical specifications
Amplifier
Max. sampling rates for each channel combination:
160 channels + 8 AUX	25 kHz
128 channels + 8 AUX	25 kHz
96 channels + 8 AUX	25 kHz
64 channels + 8 AUX	50 kHz
32 channels + 8 AUX	100 kHz
Maximum number of channels	160 EEG + 8 AUX
Maximum bandwidth of the EEG channels	DC up to 7,500 Hz
Digitization	24-bit, one converter/channel
Input impedance (for DC)	EEG channels: > 1,000 MΩ AUX channels: As of Rev. 01: 40 MΩ
Input noise	2 μVpp (DC – 35 Hz)
Input voltage range	±400 mV (EEG), ±4.8 V (AUX)
Resolution	EEG channels: 0.819.2 V⁄(2^24 Bit)≈0.04883 μV/Bit AUX channels: As of Rev. 02: 10 V/(2^24 Bit)≈0.596 μV/Bit
Common-mode rejection (CMR)	100 dB (according to IEC 60601-2-26)
Trigger input	8 bit TTL (LVTTL) signals, 0 to +5 V (+ 3.3 V), max. 10 mA
Trigger output	8 bit TTL signals, 0 to +5 V, max. 10 mA
Use with active electrodes	Yes
Use with passive electrodes	Yes
Impedance measurement	Yes, three colors, displayed via LEDs for active electrodes
Easy replacement of faulty active electrodes	Yes, by removal from splitter box
Recording software	BrainVision Recorder (version 1.22.0001 or later)
Integrated AUX/bipolar channels (base module)	Yes, 8 AUX channels
Synchronization output	3.5 mm stereo jack TTL signal, always ON Clock signal of A/D converter, based on the three basic sampling rates of the amplifier (10 kHz, 50 kHz, 100 kHz)
Dimensions (H x W x D)	Approx. 68 mm x 160 mm x 187 mm
Weight	Approx. 1.1 kg
Battery (PowerUnit)
Max. number of amplifiers	1
Rated voltage	6.6 V DC
Rated capacity	12.5 Ah
Rated energy	82.5 Wh
Output current	Max. 3 A
Rechargeable battery type	Lithium-ion (lithium iron phosphate (LiFe-PO4))
Operating time for one amplifier	Max. 16 hours (with a fully charged, new battery)
Charging time	Typically 12 hours with FRIWO charger (at room temperature with empty battery) Typically 5 hours with Mascott charger (at room temperature with empty battery)
Dimensions (H x W x D)	Approx. 68 mm x 160 mm x 187 mm
Weight	Approx. 1.2 kg
State of charge (SOC) for transport	< 30% of full capacity
State of charge (SOC) for storage	30% up to 80% of full capacity For longer storage periods: Start with 80% SOC for extending the time period until SOC falls short of 30% by self-discharge
Miscellaneous
Suitable for use in MR scanner room	No
Medical device	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).
EMC-tested in accordance with EN 61326-1:2013 (IEC 61326-1:2012)	Yes