User and Service Manual XLTEK EEG32U Amplifier
7
Specifications: EEG32U Amplifier
Specification Value(s)
Analog Specifications Channels
Referential Channels 32
Differential Input Impedance ≥ 100 MOhms
Common Mode Input Impedance ≥ 50 MOhms
Common Mode Rejection Ratio
-≥ 110 dB @ 60 Hz
Channel Bandwidth 0.1 Hz to 400 Hz
Input Noise (peak to peak) 1.66 µV @ 0.1Hz~70 Hz bandwidth
Input Noise (RMS) 0.65 μV @ 0.1Hz~70 Hz bandwidth
EEG Channel Hardware Gain 125
Maximum Differential AC Input Before Clipping (Referential) ± 20 mV
Maximum Operational DC Input Voltage Electrode Offset ± 1000 mV
Input Bias Current ≤ 20 pA
Channel Crosstalk
≥ 70 dB
Photic Stim Interface
Photic Stim Output 1 (TTL level, active high)
Photic Stim Input 1 (TTL level, active high)
User Interface
Push Buttons 1 (Impedance Check)
Event Switch Connection 1 on board
LED Indication 68 on board.
Digital Specifications
Sampling Frequency 256, 512 and 1024 Hz
Sampling Resolution - EEG Channels 16 bits
Sampling Quantization - EEG Channels 600 nV
Modes of Operation
Power Consumption <1 W @ 5 V
Impedance Check < 2.5, < 5, < 10, < 25 KOhms
Channel Test Signal Programmable
Sine: 16-32 Hz, 158-10110 μV peak-to-peak
Square: 0.25-0.5 Hz, 50-6400 μV peak-to-peak
Host Interface
USB 2.0 USB 2.0 Full Speed (12Mbit/sec).
Amplifier Mechanical
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