Comparative Performance Study of Difference Differential Amplifier Using 7 nm and 14 nm FinFET Technologies and Carbon Nanotube FET

Table 5

Comparison of differential mode gain AC analysis of DDA.

Parameters/devices	7 nm FinFET	14 nm FinFET	16 nm CNTFET
Gain	50.6	74.62	116.03
Gain 3 dB	47.6	71.62	113.03
3 dB frequency	3.76 MHz	2.1 MHz	23.54 MHz
Phase margin at -3 dB	-44.22	-50	-26.43
Cutoff frequency at 0 dB	1.4 GHz	1.2 GHz	4 GHz
Phase margin at 0 dB	-90	-90	-107
Differential input voltage	34.2 μV	3.6 mV	5.15 μV
Output voltage	11.32 mV	18.18 mV	11.8 mV
Differential input voltage at 3 dB	34.2 μV	3.6 μV	5.15 μV
Output voltage at 3 dB	mV	12 mV	9.9 mV