Low Power SAR Using CMOS Technology; VLSI Implementation
In a recent survey paper on data conversion, it was pointed out that the most popular type of Analog-to-Digital (A/D) converter in use today is the one employing the Successive-Approximation (SA) logic. The main reason for its popularity lies in its inherently fast conversion time which is a constant n clock periods for an n-bit converter. When compared to other A/D schemes such as the dual-slope integrating method and the servo-type method, the successive-approximation scheme offers much higher conversion rates.
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