Analog-to-digital conversion apparatus

Details Analog-to-digital conversion apparatus Analog-to-digital conversion apparatus

H - Electricity

03

M

354/70

H03M 1/06 (2006.01) H03M 1/08 (2006.01) H03M 1/12 (2006.01)

Patent

CA 1169971

-12- Abstract A high speed analog-to-digital conversion method and apparatus including a plurality of parallel analog-to-digital converters is disclosed. A clock sig- nal is applied to each of the analog-to-digital conver- ters at different phase relation to increase the equiv- alent sampling frequency by multiplexing the outputs into a serial form. A reference signal such as a linear ramp or sawtooth signal is used to maintain the correct phase relation, thereby eliminating any errors due to differences in electrical characteristics among the analog-to-digital converters. Such correction may be performed automatically by using a CPU before digi- tizing an analog input signal or at any desired time.

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