公开(公告)号：US20190044527A1

公开(公告)日：2019-02-07

申请号：US16158330

申请日：2018-10-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yasuhide TAKASE ,  Yasuyuki MATSUYA ,  Eri Mizukami ,  Yuji INAGAKI ,  Kazuki Mizukami ,  Nozomi WATANABE ,  Riku YONEKAWA

IPC: H03M1/08 ,  H03M3/00 ,  H03M3/02 ,  H03M1/20

Abstract: An A/D converter includes an adder that calculates a difference between an analog input signal and a predicted value, a quantizer that quantizes the difference output from the adder to convert the analog input signal to a digital signal, a prediction filter that generates a predicted value from the digital signal output from the quantizer, and a D/A converter that converts the predicted value from a digital signal to an analog signal and output the predicted value to the adder. The predicted value before being subjected to conversion to the analog signal by the D/A converter defines and functions as an A/D converted output of the analog input signal input to the adder.