Saturday, 15 March 2014

Successive approximation ADC



Working method everything is similar to RAMP type ADC.Here it have fixed value of conversion time regardless the value of analog input.


And a small variation is it does not use counter to provide input to DAC block instead it use register.The control logic modifies content of the register bit until register data are digital equivalent of the analog inputV1.

Advantages:
                     Total conversions time for N bit SAC is N clock.

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