خصوصیات فنی electro

Data acquisition TechnologyFPGA
FPGA Dedicated CPU32bit, for pulse genration
FPGA Dedicated CPU49bit for signal filteration and data compression
FPGA Dedicated CPU32 bit for experiment paradigm control (in visual audiotory task)
FIFO Memory1MB
Data transferUSB 2

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Analog to digital converterChannel numnersOptional 1, 2 or 4
ADC resolution24bit
Linearity error±7.6ppm (maximum)
Sample rate50Ks/s per channel
Analog input range±2.5v
InterfaceSerial
Isolation typeOptical
Isolation voltage2500V
Isolation resistance10 12Ω

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 Electrical  stimulatorModeConstant current, Unipolar, Isolated
Number of channelsOptional, 1 or 2
Current range0 to 4mA  or  0 to 20mA (optional)
Current resolution1µA or 5µA (optional)
Output waveformDC or current pulse
current controlYes, software controll by 12 bit DAC
Current amplitude error3LSB (maximum)
Polarity inversionYes, software controll by Relay
Output switchYes, software controll by Relay
Output voltage compliance150V
Current rise time and delay5μs, typical (1KΩ load)
Current fall time and delay5μs, typical (1KΩ load)
Isolation typeOptical
Isolation voltage2500V
Isolation resistance10 12Ω

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Microelectrode Amplifier
Amplifier TypeDifferential, Isolated, Extracellular
Number of channels2 or 4
Gain10, 100, 200, 500, 1000 and 10000
Input voltage range±5V
Maximum analog input voltage±5V
Input impedance10 12Ω, common mode and differential
Input leakage current60pA (typical)
Input capacitance8pF
Common mode rejection ratio75dB @ 50/60Hz
Isolation typeOptical
Isolation voltage2500V
Isolation resistance10 12Ω
Low cut filter 0.1, 1, 10, 30, 50, 100, 300Hz
High cut filter30, 50,100, 300, 1000,3000,5000, 10000Hz
 Pulse generator Experiment protocols Single trial, Multi trial , Single protocol, Multi-protocol
 Stimulation Timing pattern 4
 Pattern parameters Delay, Pulse duration, Pulse cycle, Pulse Numbers, Trial period, Trial Number
 Timing pattern resolution 10us
 Mixers 2ch Internal stimulator, 2ch Mechanical stimulator , 2ch Digital outs,
 Mixer Inputs Pattern1, Pattern2, Pattern3, Pattern4, Digital Input1, Digital Input2
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 Requirements

CPU : 2core,  2Ghz, 
memory : 2GB
Graphic : 1024,768
Audio : Internal or external sound card

PC
Operating SystemWindows 7
SoftwareDotnet Framework 4 or higher
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