8.2. In the circuit of Fig. 8.7(a), assume (W/L)1-50/05, (W/L)2-100/05, Rp_2kΩ,and C2 C1. Neglect...
Calculate the gain of each circuit in Fig. 6.39 at very low and very high frequencies. Neglect all other capacitances and assume λ 0 for circuits (a) and (b) and γ 0 for all of the circuits. 6.9. T DD C1 C2 Vout Vout にM1 C2 out C1 Vout Vino -にM2 Vin-にM1 Figure 6.39
Calculate the gain of each circuit in Fig. 6.39 at very low and very high frequencies. Neglect all other capacitances and assume λ 0 for circuits...
In the circuit of Fig. 8.98, (W/L)1–3 = 50/0.5, Ipi = |Ip2| = |Ip3| = 0.5 mA, and R$ı = RF = Rp2 = 3 kΩ 3. VDD VoHE M2 х Vin HE M1 Vout -W- RE Rs13 Rp2 Figure 8.98 (a) Determine the input bias voltage required to establish the above currents. (b) Calculate the closed-loop voltage gain and output resistance.
6.3. The CS stage of Fig. 6.10 is designed with (W/L) 50/0.5, Rs 1 kS2 and R 2 ks2. If 1D1 1 mA, determine the poles and the zero of the circuit. VDD RD CGD o Vout Vin CGS Figure 6.10 High-frequency modelof a common-source stage
6.3. The CS stage of Fig. 6.10 is designed with (W/L) 50/0.5, Rs 1 kS2 and R 2 ks2. If 1D1 1 mA, determine the poles and the zero of the circuit. VDD RD...
2. (36% ) In Fig. 2, the device parameters and (W/L) ratios for Q1-Q3 are given below (WIL), 2 (W/L)2-2 (W/L); (a) (10%) If IREF-2nA, find VD3 and VS3 and verify if Q3 is in saturation. Ignore the channel length modulation for DC analysis. Note: DC Vc30 (b) (12%) Draw the "small signal" circuit for the complete +10 V amplifier. Based on the circuit, derive the AC voltage gain vo/vi in terms gm, ro and RD (please use appropriate subscripts...
Q5. Consider the circuit in Fig.1 (right). Assume 9m, 9o, VT, W, L, Mn, and Cox of the transistor are knwon and isolation capacitors are sufficiently large. Assume the transistor operates in saturation. (1) Find input resistance Rin (5 marks). (2) Find output resistance Rout (5 marks). (3) Find voltage gain v./vs (10 marks). (Q4). Right - MOSFET amplifier (Q5).
Q1. For the cascade amplifier circuit shown in Fig (1): a) What are the functions of the capacitors C, C2 and C3? And what are the functions of the capacitors Cs and CE? b) What are the functions of the resistors RD and Rc? c) Draw the DC biasing circuits for each stage. d) Find loa, VGsa, VDs and gm for the JFET stage (you may use either mathematical or graphical methods) e) Calculate l, Ic, le and Ve for...
6.108 (d)
Section 6.5: Discrete-Circuit Amplifiers 6.107 Calculate overall voltage gain G, of a 3 mA/V, ro= = 10 MS2. The amplifier is the common-source amplifier for which g 100 k2, RD 10 k2, and RG fed from a signal source with a Thevenin resistance of l M2, and the amplifier output is coupled of 20 k2 to a load resistance SIM 6.108 The NMOS transistor in the CS amplifier shown in Fig. P6.108 has V, = 0.7 V and...
A common source amplifier circuit based on a single n-channel MOSFET is shown in Figure 4b. Assume that the transconductance gm-60 mS (equivalent to mA/ V) and drain source resistance, os, is so large it may be neglected. 0) Calculate the open circuit voltage gain Av Yout/ Vis. i) The amplifier has a load of 10 k2. Determine the current gain Va. = 12 V 150k 4k3 Vout Vin 200k GND = 0 V Figure 4b a) State the name...