> AC DIFFERENTIAL AMPLIFIERS WITH REMOTE PROBE
AC DIFFERENTIAL AMPLIFIERS WITH REMOTE PROBE
Company : Bak Electronics Inc
UMDC Code : 102485
The Model MDA-4 features dual independent head stage relays for microstimulation, electrode marking and input gate grounding. Each of the two inputs to the differential amplifier may be independently grounded and the corresponding electrode input jack simultaneously switched to a mini-banana jack on the rear of the probe which can be connected to a stimulator. This is controlled remotely from the probe by either manual switch input or electronic (TTL level) gate signals applied to BNC gate input connectors. A novel application facilitated by this switching involves parallel track microelectrode mapping. Closely spaced, impedance matched microelectrodes give the optimum in common mode noise rejection, particularly for stimulus artifacts. Since each electrode can pick up unit activity, two parallel tracks with a known separation can be recorded in a single pass by a dual microelectrode manipulator. When unit potential is detected, alternately grounding each side of the input stage quickly establishes from which electrode it is coming; the polarity inversion switch can be used to preserve proper waveform appearance.
Product URL : http://www.bakelectronicsinc.com/2-3.html
Last Updated : 03/16/2013