A=200000; Ri=2MΩ; Ro=75Ω; Supply voltages= ±15v; output voltage swing =±13v; fo=5hz. Compute the value of output resistance, bandwidth and closed loop voltage gain for the circuit shown.
A. ROF=8.6mΩ , fF= 53005hz and AF=-9.36
B. ROF=4.12mΩ , fF= 53005hz and AF=-11.78
C. ROF=7.1mΩ , fF = 53005hz and AF=-16.95.
D. ROF=1.9mΩ , fF= 53005hz and AF=-10.
Answer:A
A=200000; Ri=2MΩ; Ro=75Ω; Supply voltages= ±15v; output voltage swing =±13v; fo=5hz. Compute the value of output resistance, bandwidth and closed loop voltage gain for the circuit shown.
A. ROF=8.6mΩ , fF= 53005hz and AF=-9.36 B. ROF=4.12mΩ , fF= 53005hz and AF=-11.78 C. ROF=7.1mΩ , fF = 53005hz and AF=-16.95. D. ROF=1.9mΩ , fF= 53005hz and AF=-10.
Explanation: Output resistance of the amplifier, ROF= Ro/(1+AB) =, where B= R1+RF = 330Ω/330Ω+6.2kΩ = 0.053.