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    READOUT CIRCUITS AND METHODS
    2.
    发明公开
    READOUT CIRCUITS AND METHODS 审中-实审

    公开(公告)号：EP4403892A2

    公开(公告)日：2024-07-24

    申请号：EP24179836.2

    申请日：2019-04-17

    申请人： Obsidian Sensors, Inc.

    发明人： CHAN, Edward ,  WEN, Bing ,  HONG, John ,  CHANG, Tallis ,  RYU, Seung-Tak

    IPC分类号： G01J5/24

    CPC分类号： G01J5/24 ,  H04N5/33 ,  G01J5/026 ,  G01J1/46 ,  G01J1/4228 ,  G01J5/80

    摘要： Methods of sensor readout and calibration and circuits for performing the methods are disclosed. In some embodiments, the methods include driving an active sensor at a voltage. In some embodiments, the methods include use of a calibration sensor, and the circuits include the calibration sensor. In some embodiments, the methods include use of a calibration current source and circuits include the calibration current source. In some embodiments, a sensor circuit includes a Sigma-Delta ADC. In some embodiments, a column of sensors is readout using first and second readout circuits during a same row time.