We present a high density CMOS neural probe with
active electrodes (pixels), consisting of dedicated in-situ circuits
for signal source amplification. The complete probe contains 1356
neuron size (20x20 μm2) pixels densely packed on a 50 μm thick,
100 μm wide and 8 mm long shank. It allows simultaneous highperformance
recording from 678 electrodes and a possibility to
simultaneously observe all of the 1356 electrodes with increased
noise. This considerably surpasses the state of the art active neural
probes in electrode count and flexibility. The measured action
potential band noise is 12.4 μVrms, with just 3 μW power
dissipation per electrode amplifier and 45 μW per channel
(including data transmission)
