Transconductor and integrator circuits for integrated bipolar video frequency filters
- 1 January 1989
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
This paper,describes,novel,transconductor,and,an integrator circuits which,can,be,used,in integrated video,frequency,filters in,bipolar,technology.,The transconductor,consists,of a parallel connection,of a passive nominal transconductance and,an active variable transconductance, resulting in good high frequency performance,up to 70 MHz and,less than 1% linearity error for input signals up,to,2Vpp. In the,integrator an,operational,transconductance,amplifier circuit is used,which,provides,tunable,integrator,phase. Simulation results of,all circuits,and,of,a,fifth order,elliptic lowpass,filter with,a,nominal,cutoff frequency of 5 MHz are presented.Keywords
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