zxasqw123
Member level 1
hi everyone
i have designed a rail to rail op as a unit gain buffer stage ,then i find my output voltage is a little larger than my input voltage ,i do not know why?
my gain is about 60DB-70DB,and the device works well
Bcz I think Vout=Vin*A/1+A,then my output voltage should be a little smaller than my input voltage ,and my devition is about 1/A*Vin.
so can anyone tell me what is wrong?
thanks in advance
i have designed a rail to rail op as a unit gain buffer stage ,then i find my output voltage is a little larger than my input voltage ,i do not know why?
my gain is about 60DB-70DB,and the device works well
Bcz I think Vout=Vin*A/1+A,then my output voltage should be a little smaller than my input voltage ,and my devition is about 1/A*Vin.
so can anyone tell me what is wrong?
thanks in advance