Design of CDTA and VDTA Based Frequency Agile Filters

Table 3

Performance characteristics of CDTA and VDTA based Class 0, Class 1, and Class 2 FAF.

Performance characteristics	Type of; FAF	= 1 µA			= 10 µA			= 30 µA			= 60 µA
		Class; 0	Class; 1	Class; 2	Class; 0	Class; 1	Class; 2	Class; 0	Class; 1	Class; 2	Class; 0	Class; 1	Class; 2
Power dissipation (mW)	CDTA	0.359	0.997	1.63	3.34	3.99	4.63	9.98	10.7	11.3	19.9	20.6	21.2
	VDTA	0.089	0.177	0.405	0.32	1.19	3.45	0.835	3.34	9.57	1.60	6.28	17.4
SNR (dB)	CDTA	124.9	122.1	119.2	135.5	134.2	131.3	140.2	137.9	135.3	142.1	139.5	137.2
	VDTA	175.82	170.4	165.0	181.7	180.5	170.96	182.0	179.3	171.6	182.0	179.75	173.2
Max. output noise voltage (nV)	CDTA	79.37	74.92	75.49	155.02	82.99	58.97	210.46	70.69	40.85	290.59	60.56	31.92
	VDTA	28.5	28.85	28.1	38.92	37.43	51.3	46.10	44.4	38.1	51.62	52.63	25.6