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DSI-7 EEG

The DSI-7 is a complete, research-grade wireless EEG system designed for rapid application of 7 sensors at positions corresponding to locations within the International 10-20 System. Sensor locations can be customized on demand by the manufacturer. The system comprises ultra-high impedance active Dry Sensor Interface (DSI) sensors that function through hair.

The sensors can be individually adjusted to optimize contact impedance. They are spring-loaded to provide constant, comfortable contact pressure that mitigates movement artifacts seen during ambulation and are actively and passively shielded to prevent contamination from electrical artifacts.

TECHNICAL SPECIFICATIONS

Sensor locations	7 sensors at 10/20 locations (default): F3, F4, C3, C4, Pz, P3, P4 + Linked Ears – See customization options
Common-Mode-Follower	Pz is default reference (can be changed to LE in software)
Ground	1 ground electrode
Amplifier/Digitizer	16 bits, 7 channels
Analog/Digital Resolution	10 m
Analog/Digital Converter	16 bits
Sample	300 Hz
Bandwidth	0.003-150 Hz
Gain	60
Common Mode Rejection Ratio	>120 dB
Channel cross-talk	< -70 dB with sensors
Input impedance (1Hz)	47 Gohm
Input bias current	<25 pA
DC offset tolerance	+/-200 mV
Maximum input range	10mV pk-pk
Noise (1-50Hz)	<3 uV peak-peak
Digital inputs	4-bit input
Run-time	>12 Hours
Wireless	Bluetooth
Wireless Range	10 m
Headset weight	~350 g
Headsize Fit	52-62 cm circumference
Headset	Fixed sensors on spring-loaded arms and pods for sensor support
Notice	* Specifications subject to change, please contact us to obtain latest specifications

More information

Wearable Sensing DSI-7 brochure

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DSI-7 EEG

The sensors can be individually adjusted to optimize contact impedance. They are spring-loaded to provide constant, comfortable contact pressure that mitigates movement artifacts seen during ambulation and are actively and passively shielded to prevent contamination from electrical artifacts.

TECHNICAL SPECIFICATIONS

Sensor locations

7 sensors at 10/20 locations (default): F3, F4, C3, C4, Pz, P3, P4 + Linked Ears – See customization options

Common-Mode-Follower

Pz is default reference (can be changed to LE in software)

Ground

1 ground electrode

Amplifier/Digitizer

16 bits, 7 channels

Analog/Digital Resolution

10 m

Analog/Digital Converter

16 bits

Sample

300 Hz

Bandwidth

0.003-150 Hz

Gain

60

Common Mode Rejection Ratio

>120 dB

Channel cross-talk

< -70 dB with sensors

Input impedance (1Hz)

47 Gohm

Input bias current

<25 pA

DC offset tolerance

+/-200 mV

Maximum input range

10mV pk-pk

Noise (1-50Hz)

<3 uV peak-peak

Digital inputs

4-bit input

Run-time

>12 Hours

Wireless

Bluetooth

Wireless Range

10 m

Headset weight

~350 g

Headsize Fit

52-62 cm circumference

Headset

Fixed sensors on spring-loaded arms and pods for sensor support

Notice

* Specifications subject to change, please contact us to obtain latest specifications

More information

Wearable Sensing DSI-7 brochure