知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

4 records (took 0.017 seconds)

    ANALOG-DIGITAL CONVERTER HAVING MULTIPLE FEEDBACK, AND COMMUNICATION DEVICE INCLUDING THE ANALOG-DIGITAL CONVERTER
    3.
    发明申请
    ANALOG-DIGITAL CONVERTER HAVING MULTIPLE FEEDBACK, AND COMMUNICATION DEVICE INCLUDING THE ANALOG-DIGITAL CONVERTER 审中-公开

    公开(公告)号：US20190207620A1

    公开(公告)日：2019-07-04

    申请号：US16186761

    申请日：2018-11-12

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： SANG-HEON LEE ,  MICHAEL CHOI

    IPC: H03M3/00 ,  H04B1/16

    Abstract: An analog-digital converter has multiple feedback, and includes: a capacitor digital-analog converter including a plurality of switches driven by a digital code, and a plurality of capacitors respectively connected to the plurality of switches, wherein the capacitor digital-analog converter is configured to generate a residue voltage based on an analog input voltage and a voltage corresponding to the digital code; first and second feedback capacitors each storing the residue voltage; an integrator configured to generate an integral signal by integrating the residue voltage; first and second comparators respectively configured to generate first and second comparison signals from the integral signal; and a digital logic circuitry configured to receive the first and second comparison signals, and generate a digital output signal from the first and second comparison signals, the digital output signal corresponding to the digital code during a successive approximation register (SAR) analog-digital conversion interval, and the digital output signal corresponding to an average of first and second digital control signals during a delta sigma analog-digital conversion interval, wherein the first and second comparison signals are respectively fed back to the first and second feedback capacitors. The analog-digital converter may be included in various electronic devices, including communication devices.

Patent Agency Ranking