Journal ArticleDOI
A novel mixed-mode OTA-C universal filter
TLDR
In this article, a mixed-mode biquad circuit using six single-output and one dual-output-operational transconductance amplifiers and two grounded capacitors is presented.Abstract:
A novel mixed-mode biquad circuit is presented. The circuit uses six single-output- and one dual-output-operational transconductance amplifiers, two grounded capacitors; and can realize lowpass, highpass, bandpass, notch, lowpass-notch, highpass-notch and allpass responses from the same topology. The circuit can be driven by voltage or current and its output can be voltage or current. The parameters ωo and ωo/Q o enjoy independent electronic tunability. Simulation results are included.read more
Citations
More filters
Journal ArticleDOI
Multiple-Mode OTA-C Universal Biquad Filters
TL;DR: Two new multiple-mode (including voltage, current, transconductance, and transresistance modes) OTA-C universal biquad filters are proposed and H-SPICE simulation results confirm the theoretical analysis.
Journal ArticleDOI
Tunable mixed-mode OTA-C universal filter
TL;DR: In this article, a novel electronically tunable mixed-mode universal biquad by using four single-output and one dual-output-operational transconductance amplifiers, two grounded capacitors is proposed.
Journal ArticleDOI
Analytical Synthesis of the Digitally Programmable Voltage-Mode OTA-C Universal Biquad
TL;DR: This brief on the voltage-mode operational transconductance amplifier (OTA)-C universal biquad filter achieves many advantages like the employment of all single-ended-input OTAs, all grounded capacitors, and the least number of active transistor and passive component counts.
Journal ArticleDOI
Single FDCCII-based mixed-mode biquad filter with eight outputs
Chen-Nong Lee,Chun-Ming Chang +1 more
TL;DR: In this article, a mixed-mode (including voltage, current, transconductance, and transresistance modes) biquad filter with one input and seven outputs or two inputs and eight outputs is presented.
Journal ArticleDOI
Electronically tunable low-voltage mixed-mode universal biquad filter
TL;DR: This study presents an electronically tunable low-voltage mixed-mode universal biquad filter that can realise low pass, band pass and high pass responses in all the four possible modes, that is, voltage-mode, current- mode, trans-admittance- mode and trans-impedance-mode from the same configuration.
References
More filters
Journal ArticleDOI
Current-mode continuous-time filters: two design approaches
TL;DR: In this paper, two different ways to implement current-mode analog signal filtering are proposed and a practical comparison of filter structures using an approach involving operational transconductance amplifiers and current replica circuits is presented.
Journal Article
Structure generation and design of multiple loop feedback OTA-grounded capacitor filters
TL;DR: The essence of the theory is the establishment of the relationship between the filter structure and the feedback matrix, which makes systematic structure generation and general design equation formulation possible.
Journal ArticleDOI
Structure generation and design of multiple loop feedback OTA-grounded capacitor filters
Yichuang Sun,J.K. Fidler +1 more
TL;DR: In this paper, a systematic approach is proposed for all-pole filters, and the generation and design of minimum component structures are extensively exemplified, and two general methods for transmission zero realization are also suggested and two architectures with simple design formulas are illustrated.
Journal ArticleDOI
High frequency compensated current-mode ladder filters using multiple output OTAs
TL;DR: In this paper, a methodology to implement compensated currentmode filters using multiple output OTAs and based on RLC ladder filter prototypes is presented, and the resulting structures are very compact and share the low sensitivity characteristics of the passive RLC prototypes.
Journal ArticleDOI
Current-mode high-order OTA-C filters
TL;DR: In this paper, a new way to implement current-mode continuous-time filters using operational transconductance amplifiers (OTAs) is presented based on the simulation of a signal flow graph on the all-pole lowpass transfer function.