STUDIES ON DESIGN AND IMPLEMENTATION OF 10BIT 50Ms/Sec PIPELINED ANALOG TO DIGITAL CONVERTER

STUDIES ON DESIGN AND IMPLEMENTATION OF 10BIT 50Ms/Sec PIPELINED ANALOG TO DIGITAL CONVERTERAll electrical signals in nature are analog and since most of the signal processing is done in the digital domain, Analog to Digital (ADC) and Digital to Analog (DAC) converters have become a necessity. Flash ADC makes all bit decisions in a single go while Successive approximation ADC makes single bit decision at a time. Flash ADCs are faster but area increases exponentially with bit length while successive approximation ADC is slow and occupies less

All electrical signals in nature are analog and since most of the signal processing is done in the digital domain, Analog to Digital (ADC) and Digital to Analog (DAC) converters have become a necessity. Flash ADC makes all bit decisions in a single go while Successive approximation ADC makes single bit decision at a time. Flash ADCs are faster but area increases exponentially with bit length while successive approximation ADC is slow and occupies less area. Between these two extremes, many other architectures exist, deciding a fixed number of bits at a time such as pipeline and multistep ADCs. They balance circuit complexity and speed. For medium speed and with high resolution, pipeline ADCs are promising.
Although many pipelined ADC architectures are discussed in literature, the number of bits/stage was always seen to be a designerÕs choice.