Hi.
I need help about differential amplifier in the picture below?
Q1:
How do you know that Vgs (small signal) of M1 and M2 are Vid/2 and -Vid/2 respectively?
Q2:
From 5, it is clear that 0.5gm1vid+0.5gm2vid = gm1*Vin = gm2*Vin.
Why it that?
Thank you.
I need help about differential amplifier in the picture below?
Q1:
How do you know that Vgs (small signal) of M1 and M2 are Vid/2 and -Vid/2 respectively?
Q2:
From 5, it is clear that 0.5gm1vid+0.5gm2vid = gm1*Vin = gm2*Vin.
Why it that?
Thank you.
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