Q6. By using table, determine the voltage gain, Av, of the amplifier. W. Vin Ay (ms) C 40 80 t(ms) 40 A B (V) (V) (ms) 2 15 5

Data sheet below shows design parameters for a Common Source FET Transistor amplifier.VDD = 12V , VD = 0.75 VDD , VG = 0.5 VDD , Cin = Cout = 5muF , K = 1mAV-2 , VTN  = 1V , R2 = 10k and ID = 2mA Q. At DC condition,design the circuit by calculating values for VG​,R1​,RD​,VGS​,RS and gm of the FET amplifier (show all the calculated steps involved). Propose and draw the DC circuit from the calculated values. ​

Assuming and ideal current source with infinite output impedance for the current source I, draw small signal model for the below circuit to calculate its voltage gain, input impedance and output impedance of the below circuit in terms of transistor gm, transistor r, and Rg. VOD Vout RG Vino

Three amplifiers/ attenuators with voltage gains (ratios) 40, 0.8 and 5 are cascaded. Input voltage to the first stage is 500 uV. a. Find the overall (total) gain in ratio and in dB. b. Find the individual (each stage) gain/ attenuation in dB. c. Find the output voltages of each stage.

R7 lo Os The circuit in Figure 3 shows a simple multi-stage BJT op-amp, consisting of three different stages. It is given that for all transistors: B= 100, r,- 500 kN, g.-5 mA/V, and r-3 kn. (e) Determine the output resistance of the amplifier, R. ww-

Q4: The parameters of the transistor shown are PF = 150, VBE = 0.7 V, and VCE(Sat) = 0.3 V. If Rc = 1.5 kQ. Is there a value of R3 so that the transistor operates in the saturation region. RB Rc Q₁ Vcc

Derive the output resistance using small signal model for the following circuits, assuming the transistor has output resistance of a transistor is ro and transconductance of gm. Rout PPA Rout Vb- Vbo Rout Rout Vdd Vb- Rout

6b. The transistor consists of three terminals. The main reason for designing configurations is that it requires four terminals in order to provide the input and the output connections of the circuit for effective amplification. Now in your own words describe how Bipolar Transistors Transistor ( BJT ) various configurations are designed with relating  diagrams.  In your own estimation evalute which one is most widely used when looking at appreciable output for an amplifier?