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3. Consider the circuit in the Problem #2 again. Assume all transistors are in saturation and...
PROBLEM 4 (20 pts) IMPORTANT: Assume all transistors are in saturation. a) Find the small-signal DC...
PROBLEM 4 (20 pts) IMPORTANT: Assume all transistors are in saturation. a) Find the small-signal DC gain of the amplifier circuit when the small-signal voltage ViN is applied to the gate of M1. Ignore the body effect for M1 and M2. b) Find the small-signal DC gain of the amplifier circuit when the small-signal voltage Vin is applied to the body of M1. In this case, a DC bias voltage (VB) is applied to the gate of M1. Ignore the...
CONSTRUCT THE SMALL SIGNAL MODEL OF EACH CIRCUIT IF ALL OF THE TRANSISTORS OPERATE IN SATURATION...
CONSTRUCT THE SMALL SIGNAL MODEL OF EACH CIRCUIT IF ALL OF THE
TRANSISTORS OPERATE IN SATURATION AND
We were unable to transcribe this image(c) (d) Figure 6.55 Vin VDD T VinaHM Vh M Rs Vout Vout R1 Vout M2 MRD RD (c) (b) (a) VDD VDD R2 o Vout Vin M1 VintM Vout M2 R R1 WHM2 (e) (d) Fiqure 6.56 M W
(c) (d) Figure 6.55 Vin VDD T VinaHM Vh M Rs Vout Vout R1 Vout M2 MRD...
5) Problem 5: For the circuit in Figure 4, use the same PMOS and NMOS data...
5) Problem 5: For the circuit in Figure 4, use the same PMOS and NMOS data given in the 4th question. Assume Ibias-50uA ; all L = 0.5um; VDD = 3V: W,-25um; W2= 75um ; VIN 2V Find Va, Vovs, I2, VovI; Wi to carry 12 (current) in saturation, the maximum and minimum values of VouT to keep MI and M2 in saturation. biAs Nmos M3 CAND Figure 4
For the MOSFET circuit, . Given for M1 and M2, and for M3. (A/V2) for all transistors. a) Find the transconductanc...
For the MOSFET circuit,
.
Given
for M1 and M2, and
for M3.
(A/V2) for all transistors.
a) Find the transconductance of all 3 transistors (in terms of
Io) and the small-signal voltage gain of the circuit.
Assume all transistors are in saturation.
b) Find R1 (looking into the source of M1)
and R2 (looking into the source of M2).
8nCor 166 L 1 L 4n Cor = 1 Vpp R1 R2
8nCor
166 L
1 L
4n Cor =...
Problem #1 (3 pts) Assuming that all transistors are saturated and operating in subthreshold. Assume identical...
Problem #1 (3 pts) Assuming that all transistors are saturated and operating in subthreshold. Assume identical transistors. IB a) b) c) If V1-V2, what is 11, 12, and Vx? Draw the small signal equivalent circuit. If (in DC) V1 -V2, what is the small signal transconductance V2 is the input. Use the low-frequency small signal model with no capacitors and no Early effect. Include Vx M1 M3 M2 12 M4 0 . Assume that V1 is fixed and the body...
2. For the amplifiers below, not all the bias details are shown. For the circuit on the left, what is the small signal...
2. For the amplifiers below, not all the bias details are shown. For the circuit on the left, what is the small signal resistance looking into the a. source of M2 (Ri2)? b. Using part a, Find the voltage gain at the drain of Mi, and the total gain at the output. For the circuit on the right, known as a cascode amplifier, find the voltage gain. c. Express your answers in terms of the transistors gm, and RD. Assume...
Problem 6: For the circuit below, assume V+=10V, V-=0V, IF9mA, all transistors have Kn=Kp = 0.5...
Problem 6: For the circuit below, assume V+=10V, V-=0V, IF9mA, all transistors have Kn=Kp = 0.5 mAv2,VTHV.,1 0.01, and the ideal current source has an output resistance of 1Mohm. 1. Find the DC output voltage. 2. What is the Adm, Acm and CMRR of the circuit? M3 M2 2
4) Consider the MOSFET differential amplifier shown below, with Io-2 mA, and RL- 10 kS2, Rss-100 ...
4) Consider the MOSFET differential amplifier shown below, with Io-2 mA, and RL- 10 kS2, Rss-100 k2, VDD- +8V and Vss--8V. The NMOS transistors in the circuit are nominally identical, with kn 2 mA/V2, VTn 1.0 V and ro 100 k2. The PMoS transistors in the circuit are nominally identical, with kp 2 mA/V2, [VTpl 1.0 V and ro 100 kΩ M3 M4 0 M1 M2 a) First consider the DC bias point. Assuming that the current mirror requires at...
Problem 3 (20 points) For the following circuit assume 1 = 0: Av= a) Determine the...
Problem 3 (20 points) For the following circuit assume 1 = 0: Av= a) Determine the Voltage gain b) Input resistance Rin = %3D VDD M2 M3 Vb2 3ΚΩΣ Vout M1 Vin Vb1
Vcc 12V Q1a Q1b VBIAS Q2 out Output Port Consider the current source circuit shown above. Assume ...
Vcc 12V Q1a Q1b VBIAS Q2 out Output Port Consider the current source circuit shown above. Assume that the DC bias voltage VBIAs is adjusted so that all transistors are guaranteed to be in the FA Problem 4 (6 points): Calculate the output current, assuming β and VA>oo. Note: you can assume that the output port is grounded for this calculation. [HA Problem 5 (6 points): Calculate the small-signal output resistance of the current source (Rout), assuming β-100 and V,-100V....
PROBLEM 4 (20 pts) IMPORTANT: Assume all transistors are in saturation. a) Find the small-signal DC gain of the amplifier circuit when the small-signal voltage ViN is applied to the gate of M1. Ignore the body effect for M1 and M2. b) Find the small-signal DC gain of the amplifier circuit when the small-signal voltage Vin is applied to the body of M1. In this case, a DC bias voltage (VB) is applied to the gate of M1. Ignore the...
CONSTRUCT THE SMALL SIGNAL MODEL OF EACH CIRCUIT IF ALL OF THE
TRANSISTORS OPERATE IN SATURATION AND
We were unable to transcribe this image(c) (d) Figure 6.55 Vin VDD T VinaHM Vh M Rs Vout Vout R1 Vout M2 MRD RD (c) (b) (a) VDD VDD R2 o Vout Vin M1 VintM Vout M2 R R1 WHM2 (e) (d) Fiqure 6.56 M W
(c) (d) Figure 6.55 Vin VDD T VinaHM Vh M Rs Vout Vout R1 Vout M2 MRD...
5) Problem 5: For the circuit in Figure 4, use the same PMOS and NMOS data given in the 4th question. Assume Ibias-50uA ; all L = 0.5um; VDD = 3V: W,-25um; W2= 75um ; VIN 2V Find Va, Vovs, I2, VovI; Wi to carry 12 (current) in saturation, the maximum and minimum values of VouT to keep MI and M2 in saturation. biAs Nmos M3 CAND Figure 4
For the MOSFET circuit,
.
Given
for M1 and M2, and
for M3.
(A/V2) for all transistors.
a) Find the transconductance of all 3 transistors (in terms of
Io) and the small-signal voltage gain of the circuit.
Assume all transistors are in saturation.
b) Find R1 (looking into the source of M1)
and R2 (looking into the source of M2).
8nCor 166 L 1 L 4n Cor = 1 Vpp R1 R2
8nCor
166 L
1 L
4n Cor =...
Problem #1 (3 pts) Assuming that all transistors are saturated and operating in subthreshold. Assume identical transistors. IB a) b) c) If V1-V2, what is 11, 12, and Vx? Draw the small signal equivalent circuit. If (in DC) V1 -V2, what is the small signal transconductance V2 is the input. Use the low-frequency small signal model with no capacitors and no Early effect. Include Vx M1 M3 M2 12 M4 0 . Assume that V1 is fixed and the body...
2. For the amplifiers below, not all the bias details are shown. For the circuit on the left, what is the small signal resistance looking into the a. source of M2 (Ri2)? b. Using part a, Find the voltage gain at the drain of Mi, and the total gain at the output. For the circuit on the right, known as a cascode amplifier, find the voltage gain. c. Express your answers in terms of the transistors gm, and RD. Assume...
Problem 6: For the circuit below, assume V+=10V, V-=0V, IF9mA, all transistors have Kn=Kp = 0.5 mAv2,VTHV.,1 0.01, and the ideal current source has an output resistance of 1Mohm. 1. Find the DC output voltage. 2. What is the Adm, Acm and CMRR of the circuit? M3 M2 2
4) Consider the MOSFET differential amplifier shown below, with Io-2 mA, and RL- 10 kS2, Rss-100 k2, VDD- +8V and Vss--8V. The NMOS transistors in the circuit are nominally identical, with kn 2 mA/V2, VTn 1.0 V and ro 100 k2. The PMoS transistors in the circuit are nominally identical, with kp 2 mA/V2, [VTpl 1.0 V and ro 100 kΩ M3 M4 0 M1 M2 a) First consider the DC bias point. Assuming that the current mirror requires at...
Problem 3 (20 points) For the following circuit assume 1 = 0: Av= a) Determine the Voltage gain b) Input resistance Rin = %3D VDD M2 M3 Vb2 3ΚΩΣ Vout M1 Vin Vb1
Vcc 12V Q1a Q1b VBIAS Q2 out Output Port Consider the current source circuit shown above. Assume that the DC bias voltage VBIAs is adjusted so that all transistors are guaranteed to be in the FA Problem 4 (6 points): Calculate the output current, assuming β and VA>oo. Note: you can assume that the output port is grounded for this calculation. [HA Problem 5 (6 points): Calculate the small-signal output resistance of the current source (Rout), assuming β-100 and V,-100V....
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