Question

13. Calculate the voltage gain for each stage and the overall voltage gain.

AV1= ___________, AV2= ___________, AVoverall= ___________

14. What possible benefit is there to adding a buffer to the front end of an inverting amplifier as shown below:

Name: Lecture Section: Lab Section: 13. Calculate the voltage gain for each stage and the overall voltage gain. Avi - Avz= __ _ Avoverall - Stage 1 ik 3.3k2 Stage 2 4702 2.7k 14. What possible benefit is there to adding a buffer to the front end of an inverting amplifier as shown below: Voltage buffer Inverting amplifier Vau

Answer 1

Solution Ik 3.3k LAMA 4700 2.7KN + - Vout . Stages stage 2 & The The closed Operational loop. Voltage gain of a Non-Enverting Amplifier will be given as Vine A Vout. from stage! Av = /+3.3K = 1+33 = 4.3 V17 Avi= 4.3V/ Ik & From stage 2 Av2 = 42.7k = 1+5.7.44 = 6-744 V/v 470 AN2= 6.74400 * Overall voltage gass A voverall - Avi. Au 2 = (4-3) (6744 = 2941 291 Scanned wit Avoverall CamScanne

* A Voltage buffer is used to transfer a . Voltage from è ferst circuit havêng high impedence to a second circuit with a low Enput Empedence. The interposed buster Ample feel prevents the Second circult from Loading the first cercuiet unacceptably and interferring with its desired Operation, To attain large input resistence with moderate resistences for at non-investing Amplifier we cascade a Voltage buffere content the - Thank You - Scanned with camscanner