Open AccessProceedings Article
A 3V 12-55MHz BiCMOS Continuous-Time Filter with Pseudo-Differential Structure
F. Rezzi,Andrea Baschirotto,Rinaldo Castello +2 more
- pp 74-77
TLDR
In this article, a 3V 2nd order lowpass continuous-time filter is presented based on a highly linear pseudo-differential transconductor, whose output common-mode voltage is controlled at the filter level using lossy-integrators.Abstract:
In this paper a 3V 2nd order lowpass continuous-time filter is presented. The filter is based on a highly linear pseudo-differential transconductor. The input common-mode signal is cancelled at the transconductor level using a feed-forward path. The output common-mode voltage is controlled at the filter level using lossy-integrators. A prototype cell has been realized in 1.2?BiCMOS technology. The pole frequency can be tuned in the range 12-55MHz. A THD of ?40dB is achieved for signals up to lVpp at 10MHz. The dynamic range is approximately 60dB.read more
Citations
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An Ultra-Low-Voltage CMOS Process-Insensitive Self-Biased OTA With Rail-to-Rail Input Range
TL;DR: Using a novel self-biasing technique to bias the OTA obviates the need for extra biasing circuitry and enhances the performance and design feasibility under ultra-low-voltage conditions.
Journal ArticleDOI
A 1.2-V low-power BiCMOS class AB log-domain filter
M. Punzenberger,Christian Enz +1 more
TL;DR: In this paper, a third-order class AB current-mode Chebyshev filter based on the log-domain instantaneous companding principle and integrated in a 1/spl mu/m BiCMOS process is presented.
Journal ArticleDOI
A 2-V/sub pp/ 80-200-MHz fourth-order continuous-time linear phase filter with automatic frequency tuning
TL;DR: In this paper, a CMOS 80-200MHz fourth-order continuous-time 0.05/spl deg/equiripple linear phase filter with an automatic frequency tuning system is presented.
Journal ArticleDOI
Low-Voltage Linearly Tunable CMOS Transconductor With Common-Mode Feedforward
TL;DR: This paper presents a new low-voltage pseudodifferential continuous-time CMOS transconductor for wide-band applications based on a feedforward cancellation of the input common-mode signal and keeps the inputCommon mode voltage constant, while the transconductance is easily tunable through a continuous bias voltage.
Proceedings ArticleDOI
Low-voltage log-domain signal processing in CMOS and BiCMOS
TL;DR: The most important properties of log-domain filters for the realization of low-voltage (LV) and low-power (LP) analog signal processing circuits are presented.
References
More filters
Journal ArticleDOI
Tunable BiCMOS continuous-time filter for high-frequency applications
TL;DR: In this article, a second-order low-pass filter using the new transconductor realized in a 2- mu m BiCMOS technology is reported, and the cutoff frequency f/sub 0/ of the cell is tunable in the range of 8-32 MHz.
Proceedings ArticleDOI
Designing operational transconductance amplifiers for low voltage operation
P.J. Crawley,Gordon W. Roberts +1 more
TL;DR: The generalized high-swing cascoded current mirror is used, which has significantly larger bandwidth for the same low-frequency gain than single cascoded OTAs, and does not sacrifice any of the linear output voltage range.