Biquadratic Filter Applications Using a Fully-Differential Active-Only Integrator
نویسندگان
چکیده
A new class of active filters, real active-only filters, is described and possible implementation issues of these filters are discussed. To remedy these issues, a fullydifferential active-only integrator block built around current controlled current conveyors is presented. The integration frequency of the proposed circuit is adjustable over a wide frequency range. As an application, a real active-only filter based on the classical two-integrator loop topology is presented and designed. The feasibility of this filter in a 0.35 μm CMOS process is verified through SPECTRE simulation program in the CADENCE design tool.
منابع مشابه
Biquadratic Resonant Filter based on a Fully Differential Multiple Differences Amplifier
A fully differential biquadratic filter section for data acquisition in smart sensor microsystems is proposed. The architecture of this biquadratic filter section is built upon a resonant fully differential topology based on a new Fully Differential Multiple Differences Amplifier cell (FDMDA). This biquadratic low-pass Butterworth filter has two differential inputs that can be algebraically sum...
متن کاملMixed-Mode Biquadratic Filter Using Only Two DVCC and Grounded Passive Components
This paper presents a new mixed-mode (including voltage, current, transadmittance, and transimpedance modes) biquad filter using only two differential voltage current conveyors (DVCCs), two grounded capacitors and three grounded resistors, which are the least number of active components and the minimum number of grounded passive components necessary for realizing current-mode (with high output ...
متن کاملA tunable, video-frequency, low-power, single-amplifier biquadratic filter in CMOS
IIn this paper, a tunable single-amplifier biquadratic lowpass filter is presented. It consists of one balanced low-gain current amplifier and a second-order MOSFET-C feedback network. The filter was integrated in a double-poly 0.6 pm CMOS process and operates from a 3.3 V power supply. The pole frequency is tunable from 15.2 to 17.2 MHz, the pole Q is 3, the spurious-free dynamic range is at l...
متن کاملVoltage-mode multifunctional biquadratic filter using single DVCC and minimum number of passive elements
A voltage-mode multifunctional biquadratic filter with three input terminals and single output terminal is presented. The proposed circuit is constructed using only one differential voltage current conveyor (DVCC) as active element and minimum number of passive elements, namely two resistors and two capacitors. The circuit can simultaneously realize all five different biquadratic filtering lowp...
متن کاملImplementation of Fully Differential OTA based on Commercially Available IC for Biquadratic Filter Application
This article presents a realization of a recently basic building block for analog signal processing, namely fully differential operation transconductance amplifier (FD-OTA) using the commercially available ICs (LT1228). The proposed element has very simple internal instruction. The performances are examined through PSpice simulations. The description include example as biquadratic filter topolo...
متن کامل