Multichannel sampling switch for multiplexing bootstrap circuit

The invention discloses a multi-channel sampling switch for multiplexing a bootstrap circuit, which comprises a sampling switch, the sampling switch comprises a storage capacitor C0, a plurality of discharge paths and a plurality of MOS (Metal Oxide Semiconductor) tubes, the single storage capacitor C0 is connected with the plurality of discharge paths and the plurality of MOS tubes to form a plurality of switch units, and the plurality of switch units respectively form an independent sampling channel; the working process of the sampling switch comprises a holding stage and a sampling stage; in the holding stage, the plurality of switch units in the sampling stage are closed; and in the sampling stage, the storage capacitor C0 loads voltage to the grid electrode and the source electrode of the MOS tube to form a bootstrap circuit, and the plurality of sampling channels share the storage capacitor C0 in the bootstrap circuit for independent sampling. According to the multichannel sampling switch for multiplexi