| 摘要 |
The invention relates to a light-pulse detector (100) with direct feedback injection which comprises a matrix of photodetectors, each photodetector comprising a transducer (1) and an integrator (2) having a MOSFET injection transistor (21) connected in common grid mode, a feedback amplifier and an integrating capacitor (22). The feedback amplifier is a cascoded inverting differential amplifier (20') placed between the input of the injection transistor (21) and the gate of this transistor, and, for each photodetector, a demultiplexing circuit (4) is inserted between the transducer (1) and the integrator (2). This circuit (4) is capable of connecting, in succession, the transducer (1) to the input of the inverting amplifier (20') and then to the input of the injection transistor (21). |
