Proceedings ArticleDOI
Effects of weak nonlinearities in transconductance-capacitor filters
S. Szczepanski,R. Schaumann +1 more
- pp 1055-1058
TLDR
In this paper, the effects caused by weak nonlinearities of operational transconductance amplifiers (OTAs) on the performance of continuous-time OTA-capacitor (TAC) filters are investigated.Abstract:
Effects caused by weak nonlinearities of operational transconductance amplifiers (OTAs) on the performance of continuous-time OTA-capacitor (TAC) filters are investigated. Nonlinear phenomena, such as compression/expansion and desensitization, and their effects on the frequency responses of TAC filters are discussed. The Volterra series method is used to represent filters by their nonlinear transfer functions for steady-state analysis and simulation. Using this approach, distortion and interference criteria are given for analytically predicting the onset of nonlinear behavior and for establishing appropriate design guidelines. Representative simulation results are included. >read more
Citations
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Integrated continuous-time filter design /spl minus/ an overview
TL;DR: In this article, the state of the art of continuous-time filter design is reviewed and several techniques are discussed and compared in terms of performance and implementation feasibility in different fabrication technologies.
Journal ArticleDOI
Energy transfer properties of non-linear systems in the frequency domain
TL;DR: In this paper, an analysis of the energy transfer properties of non-linear systems in the frequency domain is studied based on a new concept known as nonlinear output frequency response functions (NOFRFs).
Journal ArticleDOI
Evaluation of output frequency responses of nonlinear systems under multiple inputs
TL;DR: A new method for evaluating output frequency responses of nonlinear systems under multiple inputs, defined as a sum of sinusoids of different frequencies, is developed, which circumvents difficulties associated with the existing "frequency-mix vector" based approaches.
Journal ArticleDOI
Non-linear systems in the frequency domain: Energy transfer filters
TL;DR: In this paper, the analysis of non-linear systems in the frequency domain is studied and a new class of filters, called energy transfer filters, is introduced, which exploits nonlinearity to allow energy to be moved to new frequency locations.
Proceedings ArticleDOI
A comparative study of five integrator structures for monolithic continuous-time filters: a tutorial
TL;DR: Five integrator structures for IC filters are evaluated, i.e., the Gm-C integrator; the GM-C-Opamp integrators; the MOSFET-C/OpampIntegrator; and the MosFET/OTA integrator.
References
More filters
Journal ArticleDOI
A 4-MHz CMOS continuous-time filter with on-chip automatic tuning
Francois Krummenacher,N. Joehl +1 more
TL;DR: This paper presents a 3rd order low-pass continuous-time filter with 4 MHz cut-off frequency, integrated in a 3 μm CMOS process, based on the direct simulation of a doubly-terminated LC ladder using capacitors and fully-balanced, current-controlled transconductance amplifiers with extended linear range.
Proceedings Article
A 4-MHz CMOS Continuous-Time Filter with On-Chip Automatic Tuning
Francois Krummenacher,N. Joehl +1 more
TL;DR: In this article, a 3rd order low-pass continuous-time filter with 4 MHz cut-off frequency, integrated in a 3?m CMOS process, is presented, based on direct simulation of a doublyterminated LC ladder using capacitors and fully-balanced, current-controlled transconductance amplifiers with extended linear range.
Journal ArticleDOI
Analysis of nonlinear systems with multiple inputs
TL;DR: Analytical modeling of communication receivers to account for their nonlinear response to multiple input signals is discussed, based on the application of the Wiener-Volterra analysis of nonlinear functionals.
Journal ArticleDOI
High-frequency CMOS continuous-time filters
H. Khorramabadi,Paul R. Gray +1 more
TL;DR: Fully integrated, high-frequency continuous-time filters can be realized in MOS technology using a frequency-locking approach to stabilize the time constants using a phase-locked loop.
Journal ArticleDOI
Design of linear CMOS transconductance elements
A. Nedungadi,T. Viswanathan +1 more
TL;DR: In this paper, some novel circuit techniques for realizing linear CMOS tranconductance elements are proposed, which have superior linearity and input voltage range compared with the conventional source-coupled differential pair.
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