Patent ID: 7768432

Claim:
An analog-to-digital conversion device for digitizing an analog input data, comprising: a first analog-to-digital (A/D) conversion stage for receiving the analog input data, wherein the first A/D conversion stage comprises: a first pre-amp unit for amplifying the analog input data and outputting a first amplified data; a first latch unit enabled by a first latch clock signal to latch the first amplified data and generate a first latched data; a second latch unit enabled by a second latch clock signal to latch the first amplified data and generate a second latched data, wherein the first pre-amp unit is reset between a time point when the first latch unit is enabled and a time point when the second latch unit is enabled; and a first conversion unit for receiving the analog input data, the first latched data, and the second latched data and generating a first analog output data according to the analog input data, the first latched data, and the second latched data.