Time-interleaved analog-to-digital converter

Abstract

A time-interleaved analog-to-digital converter (ADC) includes an input terminal, two sampling switches, two sampling capacitors, two buffer circuits, two ADC groups, and two signal paths. The two sampling switches are both coupled to the input terminal and are respectively coupled to their own sampling capacitors. The first buffer circuit is coupled to the first sampling switch and the first sampling capacitor. The second buffer circuit is coupled to the second sampling switch and the second sampling capacitor. The first and second ADC groups are respectively coupled to the first and second buffer circuits. The first signal path is located between the first buffer circuit and the first ADC group. The second signal path is located between the second buffer circuit and the second ADC group. The first and second signal paths have different lengths. The first and second buffer circuits have different driving capabilities.

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