The readout circuit collects and integrates the photoelectrons generated by the excitation of the infrared detector diode into a voltage signal and reads them out in sequence,turning them into readable electrical signals for the back end system,which is an important part of the infrared focal plane detector.Charge handling capability as a measure of readout circuitry is an important indicator of detector performance as well as certain application conditions that require readout circuits to have large charge handling capability.In this paper,an analog readout circuit pixel with large charge handling capability is presented,with a maximum integrating capacitance of 832 fF,and a maximum charge handling capability of 10.92 Me - within a 15μmpixel pitch,and with good linearity.