In the amplifier circuit below, the transistor has the following properties:Vt =1.5V,k’n=100 microA/V2,W=2 micro m ,L=0.2 micro m, lambda = 0V^-1
a. Find the dc values VG, VD, and VS.
b. Verify (prove) that the circuit is in the proper region of
operation for an amplifier
c. Find the transconductance value, gm
d. Draw the equivalent small-signal circuit model, replacing the
NMOS with its pi-model
e. Draw the equivalent small-signal circuit model, replacing the NMOS with its T-model
f. Calculate the overall gain (Gv), using Gv = vout/vsig
Hints: Use the T-model. Find vg by using voltage divider with vsig. Find vgs using voltage divider with vg and the 1/gm resistor. Recall that in the T-model, the node below the dependent current source is vg.
Homework Answers
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In the amplifier circuit below, the transistor has the following
properties:Vt =1.5V,k’n=100 microA/V2,W=2 micro m ,L=0.2...
1. Problem 1: For the circuit below, where β-100 and VT 25mV a. Find the dc...
1. Problem 1: For the circuit below, where β-100 and VT 25mV a. Find the dc collector current, Ic. b. Find the small signal parameters: gm , Γπ and re- c. Draw the small-signal equivalent circuit by replacing the BJT with its hybrid-t model. d. Draw the small-signal equivalent circuit by replacing the BJT with its T model. e. Use the circuit in c or d to determine the voltage gains (Ao, A.) and overall gain (Gv) 5V 1V Vout...
The NMOS transistor in the circuit below has the following parameters: (W/L).(KP2)-826pA/V2, and VA-50V. ,-0.9V, K...
The NMOS transistor in the circuit below has the following parameters: (W/L).(KP2)-826pA/V2, and VA-50V. ,-0.9V, K a. Calculate the drain-to-source resistance (rds) value. (Hint: VA- 1/) b. What is the value of the transconductance (gm)? (ignore A ONLY for this part) C. What is the value of the DC voltage Vo? (ignore λ ONLY for this part) d. Draw the small-signal equivalent circuit (including rds) e. Find the equation of the small-signal voltage gain Av-Vo/vi. This equation should be in...
1-Clear handwriting 2-Correct answer 3-Organized 4-answer all the questions Please Problem 2 On the circuit on...
1-Clear handwriting
2-Correct answer
3-Organized
4-answer all the questions
Please
Problem 2 On the circuit on Figure P2, transi stor Q1 has a threshold voltage of Vt = 2 V and a transconductance parameter of k = 100 mA/V2. Note that Vcc = -Vee = 4.5 V. Moreover, capacitors C1, C2, and C3 can be assumed to be very large VDD 4.5.0 R3 25kQ R1 300kn C2 Vout C1 Rsig Q1 1k0 R2 200kn Vsig (R4 2kQ C3 -4.5V VSS...
Problem 2 In the CS amplifier circuit below, the input signal vois coupled to the gate...
Problem 2 In the CS amplifier circuit below, the input signal vois coupled to the gate through a very large capacitor (shown as infinite). The transistor source is connected to ground at signal frequencies via a very large capacitor. The output voltage signal that develops at the drain is coupled to a load resistance via a very large capacitor a) If the transistor has V, = 1 V, and k',W/L = 2 mA/V2, find VGS, ID, and VD- b) Find...
Help please Problem 4- Common Source Amplifier: For the circuit in Fig. 4, draw the small...
Help please
Problem 4- Common Source Amplifier: For the circuit in Fig. 4, draw the small signal equivalent circuit and find the following small signal values: gm , go, Vout/Vin , Rout and Rin You can assume that the overdrive voltage for the transistor is 0.2V and 2 for the NMOS and PMOS are 0.1V1 and 0.05V-1 respectively.. The drain source current of the transistor is 200uA Vee 9v 4ook 2 Vin Pmos C 5ook 16.Sk Fig. 4
Problem 4-...
Given a BJT amplifier as shown in the following figure where ? = 60. The capacitors C1, C2 and C3 are considered to have very large values.
Given a BJT amplifier as shown in the following figure where ? = 60. The capacitors
C1, C2 and C3 are considered to have very large values.a. Perform DC analysis and compute Quiestcent point of the transistor (Icq, Vceq).
b. Draw small signal equivalent circuit of the above circuit at midband and calculate Rout and overall voltage gain Gv =
Vout(t)⁄Vsig(t)
of the circuit at midband.
An npn transistor is employed in a common-base amplifier. 4 p 100, VBE 0.7 V. +-5V 2Ks2 Vo 5ΚΩ 4.3KM -5V in It is known that the device is biased to have Ig of 1 mA. Determine the transconductance of...
An npn transistor is employed in a common-base amplifier. 4 p 100, VBE 0.7 V. +-5V 2Ks2 Vo 5ΚΩ 4.3KM -5V in It is known that the device is biased to have Ig of 1 mA. Determine the transconductance of the transistor. (10 points) (a) (b) Draw the small-signal equivalent circuit employing the T- model. (10 points)
An npn transistor is employed in a common-base amplifier. 4 p 100, VBE 0.7 V. +-5V 2Ks2 Vo 5ΚΩ 4.3KM -5V in It...
For the circuit below, NEED HELP ASAP 5. For the amplifier circuit below, i. Find the...
For the circuit below, NEED HELP ASAP
5. For the amplifier circuit below, i. Find the values for Rs and RD such that ID 2mA and VD SV. Use VDD=10V, Vtn-IV, and kn-1 mA/V2. Rsig = 50Ω. ii. If VA-o, draw the small signal model of the amplifier. iii. Calculate the gm of the MOSFET. iv. Calculate the small signal voltage gain (Vos) VDD 10V 6ΜΩ ID Co SI 4ΜΩ
2. The MOSFET in the amplifier below has a threshold voltage of IV and a transconductance parameter of ImA/V a) Estimate the operating point of the transistor. b) Sketch the small-signal model and de...
2. The MOSFET in the amplifier below has a threshold voltage of IV and a transconductance parameter of ImA/V a) Estimate the operating point of the transistor. b) Sketch the small-signal model and determine the amplifier conf c) Determine the input resistance Rin and the voltage gain Vol Vsig d) Estimate the maximum input amplitude Vig without clipping the O +15 V 600 kΩ + Vsig 300 kΩ 1kr2吉 R,
2. The MOSFET in the amplifier below has a threshold...
1. Consider NMOS transistor in the circuit that has u.Cox = 0.4 mA/V?, W/L = 25,...
1. Consider NMOS transistor in the circuit that has u.Cox = 0.4 mA/V?, W/L = 25, and V.=0.4V. (20 pts) (a) Find the value of Vas that results in saturation mode operation with a lp current of 0.1 mA. Neglect the Early effect. (2.5 pts) +1.5 V in BRD (b) Find the value of Rp that results in a de drain voltage of 0.5V. (2.5 pts) = = = (e) Find gw and r, at the de operating point specified...
1. Problem 1: For the circuit below, where β-100 and VT 25mV a. Find the dc collector current, Ic. b. Find the small signal parameters: gm , Γπ and re- c. Draw the small-signal equivalent circuit by replacing the BJT with its hybrid-t model. d. Draw the small-signal equivalent circuit by replacing the BJT with its T model. e. Use the circuit in c or d to determine the voltage gains (Ao, A.) and overall gain (Gv) 5V 1V Vout...
The NMOS transistor in the circuit below has the following parameters: (W/L).(KP2)-826pA/V2, and VA-50V. ,-0.9V, K a. Calculate the drain-to-source resistance (rds) value. (Hint: VA- 1/) b. What is the value of the transconductance (gm)? (ignore A ONLY for this part) C. What is the value of the DC voltage Vo? (ignore λ ONLY for this part) d. Draw the small-signal equivalent circuit (including rds) e. Find the equation of the small-signal voltage gain Av-Vo/vi. This equation should be in...
1-Clear handwriting
2-Correct answer
3-Organized
4-answer all the questions
Please
Problem 2 On the circuit on Figure P2, transi stor Q1 has a threshold voltage of Vt = 2 V and a transconductance parameter of k = 100 mA/V2. Note that Vcc = -Vee = 4.5 V. Moreover, capacitors C1, C2, and C3 can be assumed to be very large VDD 4.5.0 R3 25kQ R1 300kn C2 Vout C1 Rsig Q1 1k0 R2 200kn Vsig (R4 2kQ C3 -4.5V VSS...
Problem 2 In the CS amplifier circuit below, the input signal vois coupled to the gate through a very large capacitor (shown as infinite). The transistor source is connected to ground at signal frequencies via a very large capacitor. The output voltage signal that develops at the drain is coupled to a load resistance via a very large capacitor a) If the transistor has V, = 1 V, and k',W/L = 2 mA/V2, find VGS, ID, and VD- b) Find...
Help please
Problem 4- Common Source Amplifier: For the circuit in Fig. 4, draw the small signal equivalent circuit and find the following small signal values: gm , go, Vout/Vin , Rout and Rin You can assume that the overdrive voltage for the transistor is 0.2V and 2 for the NMOS and PMOS are 0.1V1 and 0.05V-1 respectively.. The drain source current of the transistor is 200uA Vee 9v 4ook 2 Vin Pmos C 5ook 16.Sk Fig. 4
Problem 4-...
An npn transistor is employed in a common-base amplifier. 4 p 100, VBE 0.7 V. +-5V 2Ks2 Vo 5ΚΩ 4.3KM -5V in It is known that the device is biased to have Ig of 1 mA. Determine the transconductance of the transistor. (10 points) (a) (b) Draw the small-signal equivalent circuit employing the T- model. (10 points)
An npn transistor is employed in a common-base amplifier. 4 p 100, VBE 0.7 V. +-5V 2Ks2 Vo 5ΚΩ 4.3KM -5V in It...
For the circuit below, NEED HELP ASAP
5. For the amplifier circuit below, i. Find the values for Rs and RD such that ID 2mA and VD SV. Use VDD=10V, Vtn-IV, and kn-1 mA/V2. Rsig = 50Ω. ii. If VA-o, draw the small signal model of the amplifier. iii. Calculate the gm of the MOSFET. iv. Calculate the small signal voltage gain (Vos) VDD 10V 6ΜΩ ID Co SI 4ΜΩ
2. The MOSFET in the amplifier below has a threshold voltage of IV and a transconductance parameter of ImA/V a) Estimate the operating point of the transistor. b) Sketch the small-signal model and determine the amplifier conf c) Determine the input resistance Rin and the voltage gain Vol Vsig d) Estimate the maximum input amplitude Vig without clipping the O +15 V 600 kΩ + Vsig 300 kΩ 1kr2吉 R,
2. The MOSFET in the amplifier below has a threshold...
1. Consider NMOS transistor in the circuit that has u.Cox = 0.4 mA/V?, W/L = 25, and V.=0.4V. (20 pts) (a) Find the value of Vas that results in saturation mode operation with a lp current of 0.1 mA. Neglect the Early effect. (2.5 pts) +1.5 V in BRD (b) Find the value of Rp that results in a de drain voltage of 0.5V. (2.5 pts) = = = (e) Find gw and r, at the de operating point specified...
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