Equalization techniques for nonlinear analog circuits

Technology advancement entails an analog design scenario in which sophisticated signal processing algorithms are deployed in mixed-mode and radio frequency circuits to compensate for deterministic and random deficiencies of process technologies. This article reviews one such approach of applying a common communication technique, equalization, to correct for nonlinear distortions in analog circuits, which is analogized as non-ideal communication channels. The efficacy of this approach is showcased by a few latest advances in data conversion and RF transmission integrated circuits, where unprecedented energy efficiency, circuit linearity, and post-fabrication adaptability have been attained with low-cost digital processing.