User and Service Manual
EMU40EX™
29
Specifications: EMU40EX Amplifier
Specification
Value(s)
Analog Specifications Channels
Referential Channels
40
Differential Input Impedance
> 50 MOhms
Common Mode Input Impedance
> 25 MOhms
Common Mode Rejection Ratio
116 dB @ 60 Hz
Input Noise (peak to peak)
3.9 µV @ 0.1~70 Hz bandwidth
Input Noise (RMS)
0.65
μV @ 0.1~70 Hz bandwidth
EEG Channel Hardware Gain
250
Maximum Differential AC Input
Before Clipping (Referential)
± 10 mV pk-to-pk
Maximum Operational DC Input Voltage Electrode Offset
± 200 mV
Input Bias Current
< 20 pA
Channel Crosstalk
-87 dB
Analog Specifications – DC Channels
DC Channels (Base Unit, DC1 – DC4)
4 isolated
DC Input Range
± 5 V
Host Interface
Network Interface
Wired
TCP/IP (Fixed IP address or DHCP)
Gigabit Ethernet (1000BASE-T, IEEE 802.3ab)
Direct Connection Interface
USB 2.0
User Interface
Front Panel Control
Base Unit LCD Touchscreen
Patient Event Pushbutton Connection
1 on Base Unit, 1 on Breakout Box
Photic Stimulator Interface
1 Natus Photic Stimulator
Digital Specifications
Sampling Frequency
256 Hz, 512, 1024 Hz