Multichannel Systems MEA1060-Up-BC Manual User Manual
Page 40
MEA Amplifier with Blanking Circuit for Upright Microscopes
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Stimulus artifacts with switched off blanking on a typical non-stimulating 30 μm electrode.
The same electrode and pulse protocol, but with blanking.
Voltage driven stimulation (1 V, electrode 75) on 30 μm TiN electrodes.
A used 60MEA200/30iR-Ti with some defective electrodes was used for this experiment. Defective
electrodes 43, 52, 53 were switched to ground in MEA_Select. You see only small artifacts on the
channels 65 and 85 with tracks next to the stimulating electrode 75. Pin 15 of the 60MEA200/30iR-
Ti was connected to ground. You see a flat line on the stimulation electrode 75, because the
electrical state of the electrode after the stimulation results in a saturation of the amplifier.