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Aiming at the application of neural signal detection system, this paper designs a 12-bit 200KS/s high resolution successive approximation analog-to-digital converter (SAR ADC) fabricated in SMIC 0.18-μm process. An optimized digital self-calibration technique is proposed to correct the static offset of the comparator and the mismatch of the capacitor array by using a correction capacitor array, achieving...
A 10bit 40MS/s asynchronous timing logic successive approximation analog-to-digital converter (SAR ADC) is presented, including a bootstrapped switch, a charge redistribution digital-to-analog converter(DAC) and a dynamic comparator. A redundancy compensation and a mismatch calibration are introduced to achieve conversion accuracy improvement. A monotonic capacitor switching technique is adopted to...
A novel triaxial monolithic silicon accelerometer with improved temperature characteristics is presented in this paper. Two methods were put forward to improve the temperature characteristics of the accelerometer. One is the optimization of the anchor configuration to decrease the temperature drift, and the other is the integration of an on-chip matching capacitor to counteract capacitance variation...
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