*2.27 (a) Use Eq. (2.5) to show that a reduction A in the op-amp gain A gives rise to a reduction |G| in the magnitude of the closed-loop gain G with |G| and A related by |G|/|G| A/A 1+R2/R1 A Assume that 1+ RR21   A and AA  1. (b) If in a closed-loop amplifier with a nominal gain (i.e., R 2/R1) of 100, A decreases by 10%, what is the minimum nominal A required to limit the percentage change in |G| to 0.1%?

27 - *2.27 (a) Use Eq. (2.5) to show that a reduction A in the op-amp gain A gives rise to a reduction |G| in the magnitude of the closed-loop gain G with |G| and A related by |G|/|G| A/A 1+R2/R1 A Assume that 1+ RR21   A and AA  1. (b) If in a closed-loop amplifier with a nominal gain (i.e., R 2/R1) of 100, A decreases by 10%, what is the minimum nominal A required to limit the percentage change in |G| to 0.1%?

This content is for Premium members only.
sign up for premium and access unlimited solutions for a month at just 5$(not renewed automatically)


images - *2.27 (a) Use Eq. (2.5) to show that a reduction A in the op-amp gain A gives rise to a reduction |G| in the magnitude of the closed-loop gain G with |G| and A related by |G|/|G| A/A 1+R2/R1 A Assume that 1+ RR21   A and AA  1. (b) If in a closed-loop amplifier with a nominal gain (i.e., R 2/R1) of 100, A decreases by 10%, what is the minimum nominal A required to limit the percentage change in |G| to 0.1%?

already a member please login


3   +   6   =