USBamp

EEG/ECoG/ECG/EMG/EOG/... high performance biosignal acquisition

USB BIOSIGNAL AMPLIFIER®

USBampgeneration

USB BIOSIGNAL AMPLIFIER

Sensitivity:

3.0

Amplifier type:rear side view

16 x ADC:~ 100 - 240 V 50/60 Hz
RECHARGABLEBATTERY
PACKisolation

2 x DAC:

MEDICALPOWER
SUPPLY

Input channels:
Noise level:

5 V DC

Highlights

BLOCK DIAGRAM

real DC-coupled EEG/ECoG/ECG/EMG/EOG biosignal amplifier with wide-range inputs
24-bit high resolution ADCs, up to 38.4 kHz sampling with simultaneous S&H for all channels

DCinternal floating point DSP for digital preprocessing and signal filtering

DCAMPLIFIERINPUT(ELECTRODES)
CH 1 - 16

16 input channels per unit, units can be stacked to set up multi-channel systems
internal amplifier calibration and automatic electrode impedance check
4 independent ground potentials per unit to avoid interference between different signal types

DCDC
isolation
DCDCDC

block
input
imped.
unit

SYNC IN

DAC

various software solutions available (driver/API, recording software, MATLAB/SIMULINK/LabVIEW ...)SYNC OUTCALIB. OUT

CE and FDA certified medical device for non-invasive and invasive recordings

calib.
unit

DIG I/O
SC / BLOCKDAC OUT

USB 2.0 interface

USB 2.0

USB 2.0

USB BIOSIGNAL AMPLIFIER

12 bit16 mono- / 8 bi-polar(per device, softwareselectable)< 0.3 µV RMS (0.1 - 10 Hz)

Input connectors:

standard safety
connectors andsystem connectors

Weight:USB
controller

24 bit (38.4 kHz internal
sampling per channel)> 100 MOhm

MEMORY

control andprocessing
unit,DSP

real DC coupled

Input impedance:

DCADC< 30 nV (LSB) - ± 250 mV

Size:1000 g197 x 155 x 40 mmApplied part:type CF

Safety class:II

Directive of
medical products:
Standards:

93/42/EWG
EN60601-1: 1996(+A1 +A2 +A12 +A13)
EN60601-2-26: 2004
EN60601-1-2: 2003
EN60601-2-25 +A1: 2001
EN60601-2-40: 1998

g.USBamp is equipped with 8 TTL-trigger inputs which are sampled synchronously with all input channels. Also additional digital I/Os areaccessable via a rear-side socket. The SC (short cut) input allows to disconnect the electrode sockets from the amplifiers during electrical ormagnetical stimulation in order to reduce artifacts.

Software options:enabled

API /device driver:This option enables the integration of the hardware into an existing data recording or processing system by the user or to program applications inC++ or other Windows-based programming languages. g.USBamp is also supported by BCI 2000.

Multiple units of g.USBamp can be stacked to set up a multichannel system. All channels are sampled synchronously.

g.USBamp works with any type of passive electrodes and strip
or grid ECoG electrodes. The g.GAMMAsys active electrodesystem can be used as well. Single cell recordings can beperformed in combination withg.tec's spike sensor system.

g.USBamp can be used with a medical power supply or with arechargable battery pack for up to 10 hours ofindependent operation.

The MATLAB-API:With the MATLAB API the MATLAB Data Acquisition Toolbox can be used to get full access to the recording buffer and to use the whole functionalityof g.USBamp. The Data Acquisition Toolbox enables a quick and easy implementation of data visualization, processing and storage applications
under MATLAB.
High-Speed Online Processing for SIMULINK (or LabVIEW):
Online/real-time biosignal processing and recording with the maximum
system speed! g.USBamp appears as a block usable in any SIMULINK model.
The design of the hardware-interrupt controlled driver allows immediate
starting of the model without prior compilation. Also g.tec's specialized
g.RTanalyze blockset can be used for real-time parameter extraction and dataclassification. The example shows a BCI system (P300-spelling device) withg.USBamp realized in a SIMULINK model.

g.tec is an official MATLAB partner.

g.Recorder:
Our recording software supports all data acquisition devices
provided by g.tec. Comfortable system configuration, datavisualization and storage make g.Recorder a perfect tool forteaching, research and clinical investigation. g.Recorder also
supports video-EEG and online biosignal parametermonitoring.

(The MathWorks, Inc., Natick, MA.)
MATLAB® and SIMULINK®
certified medical device

notified body0636

FDA

medicaldevice
clearance

k060803are registered trademarksof the MathWorks Inc.

For offline biosignal analysis please see g.BSanalyze. Thissoftware package includes powerful toolboxes for EEG analysis,
high-resolution EEG, ECG (heart rate and HRV analysis) andsingle beat ECG analysis as well as for biosignal classification.