A/D conversion apparatus
作者： Masao Noro , Ryo Kamiya , Akira Sogo
DOI:
关键词: Digital signal 、 Open-loop gain 、 Signal transfer function 、 Analog signal 、 Noise (signal processing) 、 Computer science 、 Oversampling 、 Electronic engineering 、 Automatic gain control 、 Signal
摘要: An A/D conversion apparatus is provided, which capable of securing a wide dynamic range with simple construction through suitably switching the input gain analog signal between predetermined levels. control device controls an based on signal. A ΔΣ modulator carries out oversampling having thereof controlled by to convert data one bit. detecting detects peak value generates detected in manner such that falls within range. To effectively reduce noise output digital while conversion, may also (1/A) smaller than 1, and decimation circuit have second (A) for compensating (1/A).
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