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Fig. 7: The transient response of the circuit shown in Fig. 2 Fig. 6: Input impedance at terminal X for the circuit shown in Fig. 2

Figure 7 The transient response of the circuit shown in Fig. 2 Fig. 6: Input impedance at terminal X for the circuit shown in Fig. 2

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The CMOS realization of the proposed wideband and low input resistance CCII is shown in Fig. 2. The groups of the transistors (M1-M4), (M5 and M7), (M8 and M9), (M10 and M11), (M13 and M15) as well as (M16 and M17) are matched. Assuming that Fig. 1: The CCIl realization reported in [7]
The CMOS realization of the proposed wideband and low input resistance CCII is shown in Fig. 2. The groups of the transistors (M1-M4), (M5 and M7), (M8 and M9), (M10 and M11), (M13 and M15) as well as (M16 and M17) are matched. Assuming that Fig. 1: The CCIl realization reported in [7]
Fig. 2: The proposed wideband and low input resistance CCI Index Terms — wideband, CMOS current conveyor, analog circuits
Fig. 2: The proposed wideband and low input resistance CCI Index Terms — wideband, CMOS current conveyor, analog circuits
Table 2: Transistors aspect ratios of the circuit shown in Fig. 2 Also, the transient response of the closed loop circuit is simulat- ed for an input square wave at terminal Y. The input square wave has 0.4V peak to peak amplitude, 0.5 MHz fundamental frequen- cy and Ins rise time. The output at terminal X is shown in Fig. 6. It can be noticed that it represents a faithful replica of the input square wave with no overshoots or oscillations.
Table 2: Transistors aspect ratios of the circuit shown in Fig. 2 Also, the transient response of the closed loop circuit is simulat- ed for an input square wave at terminal Y. The input square wave has 0.4V peak to peak amplitude, 0.5 MHz fundamental frequen- cy and Ins rise time. The output at terminal X is shown in Fig. 6. It can be noticed that it represents a faithful replica of the input square wave with no overshoots or oscillations.
Table 1: Transistors aspect ratios of the circuit shown in Fig.1 set varies from 0.16uA to 7.5uA within the input current range. The average value of the short circuit current transfer gain equals 0.98211. The short circuit current transfer bandwidth exhibits a 3- dB frequency of 107 MHz (Fig. 4).The input resistance at termi- nal X at DC equals 0.82 Q (Fig. 5). The total harmonic distortion (THD) of an input sinusoid of frequency 100 KHz and amplitude 0.5V peak to peak is 0.005%. The power dissipation of the circuit equals 0.87 mW.
Table 1: Transistors aspect ratios of the circuit shown in Fig.1 set varies from 0.16uA to 7.5uA within the input current range. The average value of the short circuit current transfer gain equals 0.98211. The short circuit current transfer bandwidth exhibits a 3- dB frequency of 107 MHz (Fig. 4).The input resistance at termi- nal X at DC equals 0.82 Q (Fig. 5). The total harmonic distortion (THD) of an input sinusoid of frequency 100 KHz and amplitude 0.5V peak to peak is 0.005%. The power dissipation of the circuit equals 0.87 mW.
Fig. 4: Frequency characteristics of the open circuit voltage transfer gain between Y and X (VX/VY) for the circuit shown in Fig. 2
Fig. 4: Frequency characteristics of the open circuit voltage transfer gain between Y and X (VX/VY) for the circuit shown in Fig. 2
Fig. 5: Frequency characteristics of the short circuit current transfer gain between X and Z (IZ/IX) for the circuit shown in Fig. 2 A fair comparison can be held between the proposed CCII* and Yodprasit CCI’ reported in [7]. From Table 3, it can be observed
Fig. 5: Frequency characteristics of the short circuit current transfer gain between X and Z (IZ/IX) for the circuit shown in Fig. 2 A fair comparison can be held between the proposed CCII* and Yodprasit CCI’ reported in [7]. From Table 3, it can be observed
Table 3: Parameters of the circuits shown in Fig. 1 and Fig. 2
Table 3: Parameters of the circuits shown in Fig. 1 and Fig. 2
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