Electrical impedance tomography (EIT) can image the distribution of ventilated lung tissue, and is thus a promising technology to help monitor patient breathing to help selection of mechanical ventilation parameters. Two key difficulties in EIT instrumenta ...
A pixel circuit for CMOS active sensor imaging applications is presented. An in-pixel open-loop voltage amplifier achieves efficient bandwidth limitation using low capacitance values, and it allows excellent reduction of downstream readout circuit noise, t ...
A novel charge pulse detection circuit is presented, consisting of a continuous reset resistor in series with the charge pulse generator, followed by a simple amplifier and pulse shaping circuit. Realization with a 0.18 μm CMOS process (UMC) will result in ...
Comprehensive analysis of noise sources in photocharge detectors leads to two novel, compact pixel circuits for ultra-low-noise light detection using optimum bandwidth engineering. A synchronous 4T CMOS image sensor pixel with in-pixel amplification reache ...