Could you please explain there is no current in gate
and why do we add current source in DC analysis.
dont we have to open circuit current sources in dc analysis
thanks in advance
Homework Answers
Gate terminal is isolated from the substrate by dielectric material which doesn't allow to pass current form gate terminal, hence gate current is zero.
To bais the Mosfet in saturation region DC current source is added.
In AC analysis current source is open circuited.
Add Answer to:
Could you please explain there is no current in gate
and why do we add current...
6.108 (d) Section 6.5: Discrete-Circuit Amplifiers 6.107 Calculate overall voltage gain G, of a 3 mA/V, ro= = 1...
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...
Why do not we take the channel-length modulation and body-effect into consideration in Figure b,c,d? Why...
Why
do not we take the channel-length modulation and body-effect into
consideration in Figure b,c,d? Why do we take the channel-length
modulation and body-effect into consideration in Figure a? Why do
we just take body-effect without the channel-length modulation into
consideration in Figure e? What‘s more, in Figure e, when the Vx
surpasses the gate-source voltage, is there the drain current in
the M1?
2.5. Sketch Ix and the transconductance of the transistor as a function of Vy for each...
Consider the circuit shown below. Write a short analysis of whether or not it will work as designed. If you think that it won't work, discuss what changes you would make to the circuit to fi...
Consider the circuit shown below. Write a short analysis of whether or not it will work as designed. If you think that it won't work, discuss what changes you would make to the circuit to fix the problem(s). The curve of drain current versus gate to source voltage, Vos for the MOSFET is given for your reference on the next page. The maximum Drain to Source voltage of the MOSFET is 300 Volts and the maximum drain current is 5...
3. Consider the following multistage amplifier. The current source values are 1, -2mA, I, - 1mA,...
3. Consider the following multistage amplifier. The current source values are 1, -2mA, I, - 1mA, and 1 - 1mA. Also, Voo - Vss - 6V. +VDD (a) If the DC voltage at the output is OV, find all DC currents at the drains of all transistors. Also, find the DC voltages at the drain, gate, and source terminals for all transistors (you can put the values directly on the figure). Use k.(W/L) - k.(W/L) = 2mA/V. And Vin -...
CAn somebody please help me to find the correct answer of these สาย Coupling capacitor is...
CAn somebody please help me to find the correct answer
of these
สาย Coupling capacitor is assumed to be open Coupling capacitor is assumed to be a short DC voltage supply is set to zero volts DC voltage supply is set to Voo The outputresistance is usually low for the following transistor contiguration a) Common Source b) Common-Drain c Common-Gate d) Cascode 5. The following figure is the small signal equivalent of Vi a) Common-Source b) Common-Drain c) Common-Gate 10...
could you explain these equations cause i get confuse how do we get these? thanks in advance D 9.114 The two-stage CMO...
could you explain these equations cause i get confuse
how do we get these?
thanks in advance
D 9.114 The two-stage CMOS op amp in Fig. P9.114 is D *9.115 In fabricated in a 0.18-μm technology having = 4 -Fig. 9.40 the increasing th of 4. Assumi (a) With A and B grounded, perform a dc design that will result in each of Q, Q2, Q3, and Q4 conducting a drain current of 100 1A and each of Q6 and...
Problem 2 Consider the feedback amplifier circuit on Figure P2. The DC current gain of transistor Q3 is -100 1. What type of feedback (or what feedback topology) do we have on the circuit in Figure P...
Problem 2 Consider the feedback amplifier circuit on Figure P2. The DC current gain of transistor Q3 is -100 1. What type of feedback (or what feedback topology) do we have on the circuit in Figure P2? 2. Draw the A-circuit. Express and compute the open-loop voltage gain A at mid-band frequency 3, Draw the γ-circuit. Express and compute the feedback factor γ 4. Express and compute the overall gain of the feedback amplifier Ap Express and compute the input...
An analogue amplifier circuit is shown in Figure 1 below. VDD Q5 15V JL - Vout...
An analogue amplifier circuit is shown in Figure 1 below. VDD Q5 15V JL - Vout Irer RI Vina JET T7T Figure 1 Integrated amplifier circuit. Circuit Data: Vpp = 15 V, IREF = I1 = I2 = 1.0 mA Transistor Data: Q1: NMOS, un Cox = 80 A/V?, W/L = 100 um/0.8 um, Vtn = 0.8 V, L = 0.10 um/V Q2: NPN BJT, B = 100, Vbe = 0.7 V, VA = 150 V Q3, Q4: NMOS, un...
I am POSTING question with solution please explain me how the solution is being solved please do ...
I am POSTING question with solution please explain me
how the solution is being solved please do it on paper please it is
a humble request I AM posting my question 6TH TIME PLEASE tell me
and explain me STEP by step what is happening in the question and
how to solve it ON PAPER please explain the steps
a. Using the characteristics of Fig., determine Bac at IB 60 mA and VCE z4 V b. Using the characteristics of...
R, Figure P7.49 .50 Figure P7.50 shows a current source realized using a current mirror with two matched transistors Q, and o, . Two equal resistances R, are inserted in the source leads to increase...
R, Figure P7.49 .50 Figure P7.50 shows a current source realized using a current mirror with two matched transistors Q, and o, . Two equal resistances R, are inserted in the source leads to increase the output resistance of the current source. If Q, is operating at gm 1 mA/V and has VA-= 10 V, and if the maximum allowed de voltage drop across R, is 0.3 V, what is the maximum avail- able output resistance of the current source?...
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...
Why
do not we take the channel-length modulation and body-effect into
consideration in Figure b,c,d? Why do we take the channel-length
modulation and body-effect into consideration in Figure a? Why do
we just take body-effect without the channel-length modulation into
consideration in Figure e? What‘s more, in Figure e, when the Vx
surpasses the gate-source voltage, is there the drain current in
the M1?
2.5. Sketch Ix and the transconductance of the transistor as a function of Vy for each...
Consider the circuit shown below. Write a short analysis of whether or not it will work as designed. If you think that it won't work, discuss what changes you would make to the circuit to fix the problem(s). The curve of drain current versus gate to source voltage, Vos for the MOSFET is given for your reference on the next page. The maximum Drain to Source voltage of the MOSFET is 300 Volts and the maximum drain current is 5...
3. Consider the following multistage amplifier. The current source values are 1, -2mA, I, - 1mA, and 1 - 1mA. Also, Voo - Vss - 6V. +VDD (a) If the DC voltage at the output is OV, find all DC currents at the drains of all transistors. Also, find the DC voltages at the drain, gate, and source terminals for all transistors (you can put the values directly on the figure). Use k.(W/L) - k.(W/L) = 2mA/V. And Vin -...
CAn somebody please help me to find the correct answer
of these
สาย Coupling capacitor is assumed to be open Coupling capacitor is assumed to be a short DC voltage supply is set to zero volts DC voltage supply is set to Voo The outputresistance is usually low for the following transistor contiguration a) Common Source b) Common-Drain c Common-Gate d) Cascode 5. The following figure is the small signal equivalent of Vi a) Common-Source b) Common-Drain c) Common-Gate 10...
could you explain these equations cause i get confuse
how do we get these?
thanks in advance
D 9.114 The two-stage CMOS op amp in Fig. P9.114 is D *9.115 In fabricated in a 0.18-μm technology having = 4 -Fig. 9.40 the increasing th of 4. Assumi (a) With A and B grounded, perform a dc design that will result in each of Q, Q2, Q3, and Q4 conducting a drain current of 100 1A and each of Q6 and...
Problem 2 Consider the feedback amplifier circuit on Figure P2. The DC current gain of transistor Q3 is -100 1. What type of feedback (or what feedback topology) do we have on the circuit in Figure P2? 2. Draw the A-circuit. Express and compute the open-loop voltage gain A at mid-band frequency 3, Draw the γ-circuit. Express and compute the feedback factor γ 4. Express and compute the overall gain of the feedback amplifier Ap Express and compute the input...
An analogue amplifier circuit is shown in Figure 1 below. VDD Q5 15V JL - Vout Irer RI Vina JET T7T Figure 1 Integrated amplifier circuit. Circuit Data: Vpp = 15 V, IREF = I1 = I2 = 1.0 mA Transistor Data: Q1: NMOS, un Cox = 80 A/V?, W/L = 100 um/0.8 um, Vtn = 0.8 V, L = 0.10 um/V Q2: NPN BJT, B = 100, Vbe = 0.7 V, VA = 150 V Q3, Q4: NMOS, un...
I am POSTING question with solution please explain me
how the solution is being solved please do it on paper please it is
a humble request I AM posting my question 6TH TIME PLEASE tell me
and explain me STEP by step what is happening in the question and
how to solve it ON PAPER please explain the steps
a. Using the characteristics of Fig., determine Bac at IB 60 mA and VCE z4 V b. Using the characteristics of...
R, Figure P7.49 .50 Figure P7.50 shows a current source realized using a current mirror with two matched transistors Q, and o, . Two equal resistances R, are inserted in the source leads to increase the output resistance of the current source. If Q, is operating at gm 1 mA/V and has VA-= 10 V, and if the maximum allowed de voltage drop across R, is 0.3 V, what is the maximum avail- able output resistance of the current source?...
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