PPT-Active filters 1 st & 2

nd order low pass and high pass filter Active filters and oscillators An electric filter is often a frequency selective circuit that passes a specified band of frequencies and block or attenuates signals of frequencies outside this band. Filters in this class are specified by two parameters the cutoff frequency and the filter order The frequency response of these filters is monotonic and the sharpness of the transition from the passband to the stop band is dictated by the filter ord 03 THD or Better Operates from 237V to 8V Power Supplies Low Noise High Frequency 8th Order Butterworth Lowpass Filter The LTC 10642 is a monolithic 8th order lowpass Butterworth filter which provides a maximally flat pass band The attenuation slope 1Hz to 40kHz Low Noise Wide Dynamic Range Guaranteed Operation for 237V and 5V Supply Low Power Consumption Guaranteed ClocktoCenter Frequency Accuracy of 08 Guaranteed Low Offset Voltages Over Temperature Very Low Center Frequency and Q Tempco Clock Lowpass filters are commonly used to implement antialias filters in dataacquisition systems Design of secondorder filters is the main topic of consideration Filter tables are developed to simplify circuit design based on the idea of cascading lower They have proven to be somewhat problematic from the standpoints of center fre quency f tuning stability and repeatability The advent of highspeed amplifiers opens the possi bility of higherspeed notch filtersbut are they actually producible This a Flanders Corporation531 Flanders Filters Roadshington, NC 27889Phone: (252) 946-8081Fax: (252) 946-3425Toll Free: (800) 637-2803Website: www.flanderscorp.com FILTRATION aluminum media, all metal filt Dr . Kiran. . Tota-Maharaj. Senior . Lecturer in Water & Environmental Engineering , . University of Greenwich, UK. Dr Denver . Cheddie. Associate . Professor in Mechanical Engineering ,. University of Trinidad and Tobago. Customer experiences with . Home water filtration. How does it work?. Filter out larger impurities. Activated . carbon can . remove chlorine . and other chemicals. Some can soften the water through ion exchange. Dr. . Tayab . Din Memon. . Assistant Professor . Dept of Electronic Engineering, MUET, Jamshoro. . ACTIVE FILTERS and its applications . Objectives . Discuss about the Active filters, . its use and applications. . Filters . Analysis & Design. An Overview. Where Filters are used?. Chronological evolution – techniques. Integrated Circuits Support. Other kinds of Filters. Contents of the lecture note pack. , Active versus Passive Filters, Types of Active Filters, First-Order Filters, The Biquadratic Function, Butterworth Filters, Transfer Function Realizations, Low pass Filters, High-Pass Filters, Band-Pass Filters, Band-Reject Filters, All-Pass Filters, Switched Capacitor Filters, Filter Design Guide Lines. . By Thomas . Kuehl. Senior Applications Engineer. and. John Caldwell. Applications Engineer. Precision Analog – Linear Products. Texas Instruments – Tucson, Arizona. A filter’s purpose in life. is to…. Cascaded Integrator-Comb Filters James Gibbard What are CIC Filters? CICs are an optimised combination of an FIR filter and an interpolator or decimator Require no multiply operations, only addition and subtraction If the quantity we are trying to measure is continually changing, will we be able to follow it? If the changes speed up, at what point will we fail to keep up with the changes? This is the . cut-off frequency.