Third Order Universal Filter Using Single Operational Transresistance Amplifier

Abstract

is paper proposes a multi-input single-output (MISO) third order voltage mode (VM) universal �lter using only one operational transresistance ampli�er (OTRA). e proposed circuit realizes low-pass, high-pass, all-pass, band-pass, and notch responses from the same topology. e PSPICE Simulation results using 0.5 m CMOS technology agree well with the theoretical design.

New Electronically Tunable Third Order Filters and Dual Mode Sinusoidal Oscillator Using VDTAs and Grounded Capacitors

“…(3) The proposed filter circuit realizes current mode and transimpedance mode LP and BP filters without any matching conditions in comparison to the work of [9,11,13,15,24].…”

“…(5) Moreover, all the capacitors employed in the reported circuit are grounded in comparison to the work of [12][13][14][15][24][25].…”

“…Most of the reported circuits are second-order filters [1][2][3][4][5][6][7][8]. However, some research also deal with third order and higher order filters [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. These filters suffer from one or more of the following drawbacks: order oscillators [26].…”

Design of Bessel High Order All Pass Filter Based on AN OTRA

“…In which 1 A and 1 B are known as the filter coefficient for All-Pass Bessel Filter which value are indicated in Table.1.The architrcture obtained for the OTRA depend second order Bessel Filter are given in figure 3.…”

“…The operational transresistance amplifier is referred as amplifier of current difference or an amplifier of Norton. OTRA has features like high gain current input, voltage output device [1][2][3]. OTRA has both input and output impedance having low value.…”