Design of Continuous Time Multibit Sigma Delta ADC for Next Generation Wireless Applications


This paper presents the design of CT ΣΔ modulator which can provide high DR and SNR over a 20 MHz signal bandwidth. So far all the CT SDM uses either feedback or feedforward loop filter architecture. The proposed topology is a 3rd order low-pass sigma-delta modulator, which employs a combination of feedforward and feedback schemes. Loop filter is designed… (More)


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