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This paper presents a new two-stage cascade ΣΔ modulator architecture that uses inter-stage resonation to increase its effective resolution as compared to conventional cascades and avoids the need for digital filtering in the error cancellation logic. The combination of these two strategies, together with the use of unity signal transfer function in all stages, make the presented modulator highly...
This work presents two novel topologies of cascade SigmaDelta modulators with unity signal transfer function that avoid the need of digital filtering in the error cancellation logic. The combination of these two aspects make them highly tolerant to noise leakages, very robust to non-linearities of the circuitry and especially suited for low-voltage implementations at low oversampling. Behavioral simulations...
A new cascade SigmaDelta modulator architecture with unity signal transfer function is presented which avoids the need for digital filtering in the error cancellation logic. The combination of these two aspects makes it highly tolerant to noise leakages, very robust to nonlinearities of the circuitry and especially suited for low-voltage implementations at low oversampling. Behavioural simulations...
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