| 摘要 |
PROBLEM TO BE SOLVED: To provide an A/D (analog to digital) converter which includes an improved efficiency and a reduced power consumption. SOLUTION: The A/D converter (ADC) converts an analog signal to a digital signal. The A/D converter includes an input channel, a sampling circuit connected to the input channel, an integrator connected to the sampling circuit, and a feedback circuit connected to the integrator. The input channel receives an analog signal. The sampling circuit samples the analog signal. The integrator receives the sampled analog signal and a feedback signal and integrates an overlap of the sampled analog signal and the feedback signal. The feedback circuit generates a digital signal according to an output of the integrator and sends the feedback signal as an index of the digital signal to the integrator. COPYRIGHT: (C)2009,JPO&INPIT
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