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ElectronicsITest1Cahay1996

# ElectronicsITest1Cahay1996 - Test 1 Fall 1996 M Cahay...

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Unformatted text preview: Test 1 - Fall 1996 - M. Cahay Name: [‘67 ELECTRONICS I October 18, 1996 I. (25 pts) A transconductance ampliﬁer having R.- = 2 k ('2, G. = 40 mA/V, and R0 = 20 k9 is fed with a. voltage source V, having a. source resistance of 2 1:0 and is loaded with a 1 k9 resistance. Find the overall voltage gain V./V,. QlZ—CL W 11:42 vie—5Q - ~79 U9: )ﬁqumﬁ/v EEQQ‘MZ) V0 3 PW V V: II. (25 pts) The circuit shown below (left) can be used to implement a. transre- sistance ampliﬁer. Find the value of the input resistance Re, the transresistance Rm, and output resistance of the transresistance ampliﬁer Ra. If the signal source shown on the right below is connected to the input of the transresiso tance ampliﬁer, ﬁnd its output voltage. Does it depend on the load resistance? Why? III. (25 pts) For the circuit shown below derive the expression for the transfer function T(s) = vo(8)/Vg(8). Find the expressions for the magnitude and phase of T(s). ...
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