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A split Δ-Σ ADC topology is proposed which provides enhanced noise shaping by cross-coupling the quantisation errors of the two halves of the structure. Unlike the multi-stage noise shaping architecture, the new structure is insensitive to mismatch errors and it does not reduce the stability of the loops. Simulations confirm the effectiveness of the proposed scheme. [ABSTRACT FROM AUTHOR]

The low-distortion modulator is an effective ΔΣ ADC architecture for high-linearity and low-dissipation applications. However, it has several practical drawbacks. An improved low-distortion modulator topology that avoids these disadvantages is suggested. [ABSTRACT FROM AUTHOR]

The noise-coupling technique successfully used in discrete-time delta-sigma analogue-to-digital converters (ADCs) is extended to the realisation of continuous-time delta-sigma ADCs, resulting in improved quantisation noise shaping. To verify the proposed design methodology, a second-order continuous-time delta-sigma modulator with noise coupling is designed and simulated. [ABSTRACT FROM AUTHOR]