论文信息 - Current-mode lowpass and bandpass filters using the operational amplifier pole

Current-mode lowpass and bandpass filters using the operational amplifier pole

This paper proposes a circuit configuration for realizing current-mode lowpass and bandpass filters using the operational amplifier (op.-amp.) pole. The circuit simultaneously realizes lowpass and bandpass transfer functions using an op.-amp., three resistors and a capacitor. The effects of the paras tic poles (i.e. second and third poles) of the op.-amp. on the gain of a lowpass filter are also presented. Since the circuit uses the op.-amp. pole, it is suitable for high frequency operation.

Masami Higashimura | M. Higashimura

[1] V. Aatre,et al. Low sensitivity high-frequency active R filters , 1976 .

[2] R. Schaumann,et al. Active R filters: review of theory and practice , 1978 .

[3] P. Bowron,et al. Polynomial reduction in the analysis of active-filter parasitics , 1989 .

[4] M. A. Siddiqi,et al. Tutorial review: Realization and performance assessment of active-R inductors , 1991 .

[5] Masami Higashimura,et al. Brief communication Current-mode highpass and bandpass filters using the operational amplifier pole , 1992 .

[6] Michael A. Soderstrand. Design of active R filters using only resistors and operational amplifiers , 1976 .

[7] Umesh Kumar,et al. On the importance, realisation, experimental verification and measurements of active-R and active-C filters , 1990 .

[8] D. Baez-Lopez,et al. Comments on "Active-R realization of bilinear RL impedances and their application in a high-Q parallel resonator and external capacitorless oscillator" , 1978 .