We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
VCC Ne Vi of tme BJT cascode biased by a Non- del current Sour ce hauins...
6.105 Consider the BJT cascode circuit of Fig. 6.30 (a) Derive an expression for the current ic2 as a func- (b) Derive an expression for the output vouT as a func- (c) Combine these expressions to derive the vIN-voUT tion of vIN tion of icz transfer characteristic. Figure 6.30 Cascode configuration implemented with npn BJT devices. Q1 is the cascode device and 02 functions as the input current source. Rc Load element ici OUT Current-following (cascode) device Q1 2 DIN
4. Consider the BJT cascade amplifier shown below Vcc 18V R1 3.3ko 15uF r Vo RL B 150 Rsa 500? 56k? Vi B 150 C1 CE 2.2k? a) Find the DC collector current (approximately the same in both transistors). b) Find the input impedance, output impedance, and no-load voltage gain. c) Find the Av, Avs, and Ai d) Estimate the lower cutoff frequency e) Why does this amplifier have better high-frequency performance thana common-emitter built using the same type of...