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Nonlinear-Stability Analysis of Higher Order $\Delta$ –$\Sigma$ Modulators for DC and Sinusoidal Inputs
2008
IEEE Transactions on Instrumentation and Measurement
The present work that exists on predicting the stability of ∆-Σ modulators is confined to DC input signals and unity quantizer gains. This poses a limitation for numerous ∆-Σ modulator applications. The proposed research work gives the stability curves for DC, sine, and dual sinusoidal inputs for any value of the quantizer gain. The maximum stable input limits for third-, fourth-, and fifth-order Chebyshev-Type-II-based ∆-Σ modulators are established using the describing-function method for DC
doi:10.1109/tim.2007.911640
fatcat:4eehjlsj4bgsbk5xm37ieh7dli