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This brief presents a novel analog-to-digital converter (ADC) with adaptive delta-sampling for ultra-low power sensing applications. By sampling only the incremental value of the input signal and adaptively adjusting the sampling frequency, the proposed ADC can achieve the same resolution and conversion range with less number of bits than the conventional ADC. Meanwhile, the power consumption is also...
This paper presents an ASIC design of ultra-low power SAR ADC. To achieve ultra-low power, the proposed ADC operates at ultra-low voltage, deploying a single-ended structure and top plate sampling technique. In order to improve sampling circuit linearity at ultra-low supply voltage, a bootstrapped switch is developed. A non-binary redundant algorithm is applied to correct the inevitable decision errors...
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