Output voltage of an OP-AMP for input voltage of Vi1 = 150

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Output voltage of an OP-AMP for input voltage of V_i1 = 150 μV, V_i22 = 140 μV if amplifier has a differential gain of Ad = 4000 and value of CMRR is 100, is

1. 45.8 mV
2. 40.006 mV
3. 10 μV
4. 145 μV

Correct Option: A

V₀ = A_d V_d		1 +	1	V_c
			CMRR	V_d

= (400) (10 V)		1 +	1	145 μ V		= 45.8 mV
			100	10 μ V