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g.tec medical engineering · Amplifiers

g.HIamp

256-channel biosignal amplifier

A 256-channel, FDA-cleared and CE-marked high-performance biosignal amplifier for invasive and non-invasive brain measurements. High signal resolution and a wide input range give superior data quality in EEG, ECoG, ECG, EMG and EOG recordings: one platform from the research lab to the operating theatre.

  • 16 – 256 channels
  • 24-bit · 38.4 kHz
  • FDA cleared · CE
  • 1 kHz high gamma
g.HIamp 256-channel amplifier

Highlights

  • 16 / 32 / 80 / 144 / 256 DC-coupled, wide-range channels: EEG, ECoG, EMG, EOG and attached sensors
  • 256 perfectly synchronised channels at 24-bit resolution
  • High-gamma recording up to 1 kHz
  • Integrated impedance measurement for active and passive electrodes
  • Simultaneous recording with TMS / tDCS / fNIRS
  • Up to 1,024 channels with 4 g.HIamp units and the multi-device toolbox
  • Works with every active and passive g.tec electrode: g.LADYbird, g.SCARABEO, g.SAHARA, g.Pangolin, cortiQ
  • Ideal for closed-loop neuromodulation experiments

Technical specifications

Dimensions
197 × 197 × 90 mm
Weight
1,875 g
Interface
USB
Digital inputs
2 × 8 digital trigger inputs · 1 × HOLD input
Power supply
5 V DC · medical-grade mains supply
Sensitivity
8.57 nV / ±340 mV (with g.Pangolin)
Amplifier type
True DC-coupled
ADC
256 × 24 bit, 38.4 kHz per channel
Input channels
256 monopolar / 128 bipolar, software selectable
Input impedance
> 1000 GΩ // 220 pF
Applied part
CF
Safety class
II
Certification
FDA cleared · CE · EN 60601-1 · EN 60601-1-2 · EN 60601-2-26 · EN ISO 14971
Electrode compatibility

With every g.tec electrode type

The g.HIamp main amplifier works with every g.tec EEG electrode type: g.SAHARA, g.SCARABEO, g.LADYbird, g.Pangolin and cortiQ. 16- and 64-channel passive, 64-channel active and TMS-specific connector boxes, plus a 256-channel active connector box for g.Pangolin; well suited to recording EEG simultaneously with TMS/tDCS or fNIRS.

  • g.SAHARA
  • g.SCARABEO
  • g.LADYbird
  • g.Pangolin
  • cortiQ
Ultra high density

1,024-channel EEG with g.Pangolin

g.Pangolin ultra-high-density electrode grids connect to g.HIamp through an active headstage amplifier. Polygonal grids of 16 electrodes each are mounted on the head; with 4 g.HIamp units and the g.HIsys multi-device toolbox, up to 1,024 channels record simultaneously.

  • 1,024 EEG channels
  • Source localisation
  • Brain mapping
Research article

Brain activity on an Airbus A330 Zero-G flight

Brain activity was recorded with g.HIamp during zero-gravity flights on an Airbus A330, showing what the amplifier can do for neuroscience research in microgravity.

  • Microgravity
  • Zero-G
Blog

Further reading

g.tec
Contact

Let's plan your project together.

Talk to our team about device selection, protocol design, installation and software integration. We will work out the technical configuration that best fits your research or clinical goal.

Request a quote

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