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This tutorial will cover the principles and architectures of analog digital converter design. The tutorial begins with a review of domain conversion including sampling, aliasing, and usable bandwidth. Next, quantization will be discussed with a focus on effective dynamic range and linearity. The tutorial will conclude with a review of architectural survey including single slope/dual slope ADCs, flash ADCs, successive approximation, algorithmic ADCs, pipeline ADCs, sigma delta modulators and continuous time sigma delta.