论文信息 - Current-mode band-pass ladder filters using OTAs

Current-mode band-pass ladder filters using OTAs

A design method of current-mode (CM) band-pass ladder filters is presented. The proposed method is based on the simulation of the passive RLC ladder networks using current-mode biquad blocks. Three scaled impedance functions are chosen to generate the biquadratic transfer functions. Based on these scaled impedance functions, three CM band-pass filters are obtained and implemented using OTAs. As an example, a sixth-order Chebyshev band-pass filter is designed and simulated using HSPICE.

Jie Wu | Ezz El-Masry

[1] Edgar Sanchez-Sinencio,et al. Active compensation of operational transconductance amplifier filters using partial positive feedback , 1990 .

[2] Jaime Ramirez-Angulo,et al. Current-mode continuous-time filters: two design approaches , 1992 .

[3] Edgar Sanchez-Sinencio,et al. Low voltage integrators for high-frequency CMOS filters using current mode techniques , 1996 .

[4] D. J. Allstot,et al. Low-power CMOS continuous-time filters , 1996 .

[5] Gordon W. Roberts,et al. All current-mode frequency selective circuits , 1989 .