The ERS100C Evoked Response Amplifier is an extremely low noise differential amplifier that accurately amplifies very small potentials, such as those associated with stimulus/response, signal averaged recordings. Selectable gain and bandwidth options make the evoked response module useful for a variety of evoked response testing applications. The ERS100C is intended for use in applications such as auditory brainstem response, startle response, somatosensory evoked response or nerve conduction velocity recording (see NERVE1 Nerve Chamber).
The MP150 system interfaces with a most major stimulus presentation systems such as E-Prime and SuperLab for advanced evoked response applications. The AcqKnowledge software (included with the MP150) includes a variety of powerful analysis tools for evoked response studies including both on-line and off-line averaging.
Maximum bandwidth (1.0 Hz - 10 kHz); response can be customized at BIOPAC
Low Pass Filter:
3 kHz, 10 kHz
High Pass Filter:
1.0 Hz, 20 Hz, 100 Hz
Notch Interference Filter:
50 dB rejection@ 50/60 Hz
Noise Voltage (100-3000 Hz):
0.5 µV (rms)
Zin:
2M ohm (Differential),
1000 M ohm (Common mode)
CMRR:
110 dB min (50/60 Hz)
Common Mode Input Voltage Range:
±10 V (referenced to amplifier ground) ±1500 VDC (referenced to mains ground)
Output Range:
±10 V (analog)
Input Voltage Range
Gain
Vin (mV)
5000
±2
10000
±1
20000
±0.5
50000
±0.2
Noise Graph
The bottom graph (plotted in nV per root Hz) applies to all BIOPAC MP System biopotential amplifiers and should be interpreted in accordance with the user's bandwidth estimates.
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