Successive Approximation Register Circuit Diagram. Circuit diagram of successive approximation register method. Block diagram successive approximation adc block diagram key dac digital to analog converter eoc end of conversion sar successive approximation register s h sample and hold circuit v in input voltage v ref reference voltage algorithm the successive approximation analog to digital converter circuit typically consists of four chief subcircuits.
Each channel can be sampled with a different sampling time. The circuit diagram is shown below. Successive approximation type analog to digital converter the main part of the circuit is the 8 bit sar whose output is given to an 8 bit d a converter.
The functional block diagram of successive approximation type of adc is shown below.
One of the most common analog to digital converters used in applications requiring a sampling rate under 10 msps is the successive approximation register adc. Successive approximation a d converter. Synchrounous generally refers to something which is cordinated with others based on time synchronous signals occur at same clock rate and all the clocks follow the same reference clock. Successive approximation register method sar is the most widely used method in a d conversion.
