AD CONVERTER, DYNAMICAL QUANTITY DETECTION DEVICE, AND ELECTRONIC DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an AD converter and dynamical quantity detection device which can maintain a high detection accuracy as a whole sensor system, while keeping adjustment of an anti-alias filter easy.

SOLUTION: The AD converter 10 converts an analog signal 12 as a detection result outputting from a sensor module 10 which detects a dynamical quantity by a vibrator vibrating based on a driving signal into a digital signal. The AD converter 10 includes a discrete time type filter 200 which samples the analog signal 12 and performs filtering processing, an AD converter part 300 which performs the AD conversion processing converting the analog signal 202 filter-processed by the discrete time type filter 200 into the digital signal. The discrete time type filter 200 performs the filter processing as the anti-alias filter for the AD conversion processing based on a synchronized clock signal 14 output from the sensor module 10.

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