Voltage/Current-Mode Multifunction Filters Using Current-Feedback Amplifiers and Grounded Capacitors

Figure 4

Experimental frequency responses of Figure 1 design with 𝐶₁=𝐶₂=100pFand𝑅₁=𝑅₂=𝑅₃=𝑅₄=𝑅₅=10kΩ∶ (a) lowpass filter (𝑉_lp), (b) bandpass filter (𝑉_bp), and (c) highpass filter (𝑉_hp).

(a)

(b)

(c)