Multi-channel time-interleaved analog-to-digital converter

The invention discloses a multichannel time-interleaved analog-to-digital converter. The multichannel time-interleaved analog-to-digital converter comprises a clock generator and twelve analog-to-digital conversion modules, the clock generator generates a twelve-phase clock signal and a forty-eight-phase clock signal according to the two-phase clock signal. Each analog-to-digital conversion module comprises a storage capacitor, one end of the storage capacitor receives an input signal through a first switch, the other end of the storage capacitor is grounded, and the twelve-phase clock signals are respectively used for controlling the switching of the first switches in the twelve analog-to-digital conversion blocks; the input end of the first buffer is connected with the first switch and one end of the storage capacitor; and each analog-to-digital conversion unit is connected with the output end of the first buffer through a second switch to a fifth switch, and 48-phase clock signals sequentially control the