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miller_amp_noise - miller_amp_noise.mcd...

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miller_amp_noise.mcd 1/21/2011 Reference:C:\CHIU\analysis\defaults.mcd Thermal Noise of Two-Stage Amplifier V x V g -V o M1 I 1 M2 I 2 C c C 2 C 1 I 3 I c I 4 C s C f V g V o V i C g 2-stage amplifier used in capacitive feedback Here, we lump all output loading into C 2. Given g m1 V g s C 1 V x s C c V x V o 0 = g m2 V x s C 2 V o s C c V x V o 0 = V g V i V o = Find V o V x V g g m1 V i g m1 g m2 g m1 s C c s C c g m2 s 2 C 1 C 2 s 2 C 1 C c s 2 C c C 2 g m2 s C c g m1 V i s C 2 C c g m1 g m2 g m1 s C c s C c g m2 s 2 C 1 C 2 s 2 C 1 C c s 2 C c C 2 V i s C c g m2 s C 1 C 2 s C 1 C c s C c C 2 g m1 g m2 g m1 s C c s C c g m2 s 2 C 1 C 2 s 2 C 1 C c s 2 C c C 2 where, C s C s C f C g = C f C s C f C g = feedforward factor feedback factor 1
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