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This paper presents a 12-channel, low-power, high efficiency neural signal acquisition front-end for local field potential and action potential signals recording. The proposed neural front-end integrates low noise instrumentation amplifiers, low-power filter stages with configurable gain and cut-off frequencies, a successive approximation register (SAR) ADC, and a realtime compressed sensing processing...
This paper presents a high efficiency, net-zero charge neural stimulator. A new stimulation strategy is proposed to reduce the charge error that originates from the irreversible charge diffusion, which is a common issue in traditional current matching stimulator designs. In addition, an arbitrary channel configuration of the working and counter electrodes is achieved. Two methodologies are applied...
A voltage controlled MEMS oscillator (VCMO) fabricated in 65nm CMOS process is proposed in this paper. The piezoelectric aluminum nitride (AlN) Contour-Mode MEMS resonator based oscillator can be operated under multiple frequencies from 204MHz, to 517MHz, to 850MHz. A maximum overall tuning range of 611ppm is achieved at a center frequency of 204MHz. The proposed oscillator operates in the sub-threshold...
In this paper, for the first time, Ni/Al layered double hydroxides (LDHs) with high specific surface area and high porosity were developed via a facile and environmentally friendly solvothermal approach. The obtained Ni/Al LDHs have a diameter of 1–10μm, which are self-assembled by 15nm-sized primary particles and 200nm size secondary particles. The BET surface area of the sample is determined to...
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