Distortion Analysis of Analog Integrated Circuits
Distortion Analysis of Analog Integrated Circuits
The Designer's Guide to Spice and Spectre
The Designer's Guide to Spice and Spectre
Analysis and Design of Analog Integrated Circuits
Analysis and Design of Analog Integrated Circuits
Analysis of windowing/leakage effects in frequency response function measurements
Automatica (Journal of IFAC)
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Although non-linear distortion is an important specification for op-amps, it is only determined at the end of the design in classical design flows, leaving the designers without a clue about its origin. Recently, the Best Linear Approximation (BLA) has been introduced to approximate non-linear systems. It allows to describe the behaviour of a non-linear system as a linear Frequency Response Function combined with a coloured noise source to describe respectively the wanted linear response and the distortion. To determine the dominant source of non-linear distortion, we combine the BLA with a classical noise analysis in this paper. The paper explains the BLA-based noise analysis and shows the result of this simulation-based analysis when applied to various op-amp architectures. The analysis pinpoints the non-linear hot-spots in an efficient way, without the use of special simulations, manual analytical calculations or modified transistor models.