Journal ArticleDOI
Automatic tuning of continuous-time integrated filters using an adaptive filter technique
TLDR
In this article, an adaptive filter technique for tuning continuous-time integrated filters is presented based on model-matching configuration and tunes both the poles and zeros of the transfer function.Abstract:
An adaptive filter technique for tuning continuous-time integrated filters is presented. This technique is based on the model-matching configuration and tunes both the poles and zeros of the transfer function. Circuit details of an experimental prototype are given. The experimental prototype consists of an integrated third-order filter that is automatically tuned by off-chip circuitry realizing the adaptive tuning system. Both experimental and simulation results are presented to confirm the viability of the proposed approach. >read more
Citations
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Journal ArticleDOI
A field programmable analog array for CMOS continuous-time OTA-C filter applications
TL;DR: A programmable high-frequency operational transconductance amplifier (OTA) and general configurable analog block (CAB) are presented, which consists of the proposed programmable OTA, programmable capacitor and MOSFET switches, which can realize many signal-processing functions, including filters.
Journal ArticleDOI
A 200 MHz CMOS Q-enhanced LC bandpass filter
TL;DR: In this paper, the authors present design techniques and performance bounds for implementing Q-enhanced, LC bandpass filters in silicon IC technologies, which offer significant advantages over switched capacitor and Gm-C based designs, including higher frequency of operation and lower power consumption.
Journal ArticleDOI
A practical quality factor tuning scheme for IF and high-Q continuous-time filters
TL;DR: In this paper, the magnitude-locked-loop (MLL) Q-tuning technique was used to tune the center frequency and quality factor of high-frequency and high-Q continuous-time filters.
References
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Book
Adaptive Signal Processing
Bernard Widrow,Samuel D. Stearns +1 more
TL;DR: This chapter discusses Adaptive Arrays and Adaptive Beamforming, as well as other Adaptive Algorithms and Structures, and discusses the Z-Transform in Adaptive Signal Processing.
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
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
Continuous-time MOSFET-C filters in VLSI
TL;DR: In this article, the desirable features of fully integrated, VLSI-compatible continuous-time filters are discussed, in which MOS transistors are used in place of resistors along with nonlinearity cancellation and on-chip automatic tuning.
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A 4-MHz CMOS continuous-time filter with on-chip automatic tuning
Francois Krummenacher,N. Joehl +1 more