Abstract
Abmaa -Based on a new insight on the nonlinearity of non-ideal quantizers, a eflcient technique for improving the spurious free dynamic range (SFDR) of pipelined quantizers is develeped A Nyquist rate quantizer architecture that implements the technique to reliably achieve over 100 dB SFDR is proposed. The main advanrage of the proposed architecture over fhe known Nquist rate ADC SFDR improving fechniqaes such as dither and dynamic element match is that the proposed architecfure requires no significant modification of the underlying pipeline structure, and, therefore is capable of high speed operation. Monte Carlo simulations in MATLAB indicate that theproposed architecture can guarantee over IO0 dB SFDR performance, even in the presence of large component non-ideality.
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