Relative double-sampling hold circuit with new structure

The utility model relates to a relative double-sampling holding circuit with a new structure, which comprises a source following tube M#-[sf 1], a switch tube M#-[Lp], a sampling gating tube M#-[sh], and a DC resetting tube M#-[dc], wherein, a source electrode of the source following tube M#-[sf 1] is connected with a power source through the switch tube M#-[Lp] and is connected with the input end of a cushioning output stage through a sampling holding capacitor C#-[cds]; a leakage pole earths through the sampling gating tube M#-[sh]; a grid electrode is connected with an integrating capacitor. The source electrode and a substrate of the source following tube M#-[sf 1] are connected together so as to reduce the bulk effect of an MOS tube; the leakage electrode and the source electrode of the DC resetting tube M#-[dc] are respectively connected with the input end of the cushioning output stage and the ground; the switch tube M#-[Lp], the sampling gating tube M#-[sh], and the grid electrode of the DC resetting tube M#-[dc] are all connected with the same control pulse V#-[cdsh]. The utility model has the advantages of simple structure, simple pulse driving, convenient digital/analog conversion, frame frequency enhancement, small power, large improvement of output noise characteristic, etc. The utility model can be used for multiple output processing of integrating signals of a photoelectric detector, a photovoltaic detector, and a photoconductive detector.