Cheng-Ta Chiang

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In this paper, a 10-bit pipelined ADC for high frame-rate video/image capturing instruments and systems is newly proposed. The proposed pipelined data converter is attractive due to that the requirements of high frame-rate video/image capturing instruments and systems are successfully matched. Based upon the device parameters of 0.25 µm 1P5M CMOS(More)
In this paper, a CMOS readout circuit with frequency optimization for microphone sensor arrays is newly proposed. The proposed readout circuit is attractive due to that all the analog block circuits are robust and compact to be integrated. Based upon the device parameters of 0.35 μm 2P4M CMOS technology with 3 V power supply, all the functions and(More)
In this paper, a CMOS phase to digital transducer for optical incremental sensors is newly proposed. This chip adopts a proposed phase-shift method to easily generate phase shifts of signals by using a resistor chain. Different to PLL-based and ADC-based interpolation, the complexity and hardware cost can be relaxed in this proposed chip. Based upon the(More)
In this paper, a semi-cylindrical capacitive sensor with interface circuit using for fluidic measuring is newly proposed. The numerical analysis method to calculate the capacitance of the semi-cylindrical capacitive sensor is analyzed and discussed. Besides, the interface circuit is compact to simplify the circuit complexity, and could be easily implemented(More)
In this paper, a CMOS solar power to frequency converter with calibration circuits for monitoring sunlight intensity of crops is newly proposed. A calibration technique is proposed in this work. Another innovation is that the outputs of the proposed chip are directly digitized, they could be easily sent over a wide range of transmission media, such as PSN,(More)
In this paper, a CMOS retinal rotational sensor for clockwise/counterclockwise detecting and velocity measuring is proposed. The proposed chip is attractive due to the fact that analog image processing circuits within a pixel are implemented by digital circuits. It can be integrated robustly and compactly. Based upon the device parameters of 0.35 µm(More)