Abstract:
An analog to digital converter in accordance with the inventive concept may include a reference voltage generation circuit outputting first and second reference voltages; a decompression part decompressing amplitude of an analog input signal and the first and second reference voltages; a flash ADC converting the decompressed analog input signal into a first digital signal with reference to the decompressed first and second reference voltages; and a successive approximation ADC converting the analog input signal into a second digital signal according to a successive approximation operation with reference to the first digital signal and the first and second reference voltages.
Abstract:
A delay time control circuit is provided which includes a delay locked loop generating a second clock signal delayed by a predetermined time in response to a first clock signal; a plurality of delay circuits each receiving the first and second clock signals and outputting third and fourth clock signals in response to first and second digital clock signals; and a feedback control unit receiving the third and fourth clock signals to detect a delay time and generating the first and second digital control signals for compensating the detected delay time.