Title :
Fully-integrated implementation of large time constant Gm-C integrators
Author_Institution :
Center for Wireless Integrated MicroSyst., Univ. of Michigan, WIMS, MI
Abstract :
A novel technique is proposed to take advantage of system-level properties of applying negative feedback to an operational transconductance amplifier to implement fully integrated large time constant integrators. Based on the proposed idea a first-order lowpass G m-C filter as an integrator with a cutoff frequency of 20 Hz has been designed, fabricated and tested. Experimental results are in close agreement with theoretical and simulation results
Keywords :
feedback amplifiers; integrating circuits; low-pass filters; operational amplifiers; Gm-C integrators; first-order lowpass Gm-C filter; large time constant integrators; negative feedback; operational transconductance amplifier; system-level properties;
Journal_Title :
Electronics Letters
