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1) Consider the 2-stage amplifier shown in the figure below. Both transistors have β-100 and oper...
For the differential amplifier shown in Figure 6: Assume well-matched transistors and = 100 for all transistors: a) Wh...
For the differential amplifier shown in Figure 6: Assume
well-matched transistors and = 100 for all transistors:
a) Why it is important to use well-matched transistors in
differential amplifier circuits? What is the potential influence of
mismatched transistors on the performance of the differential
amplifier?
b) Determine the resistor values (R1, R2 and R3) such that the
emitter coupled current IE = 0.5 mA and VC1 = 3 V.
c) Draw the ac equivalent circuit for the single ended...
l (33 PTS.) A MOSFET two-stage amplifier is shown below a) Determine gm for both MOSFETS...
l (33 PTS.) A MOSFET two-stage amplifier is shown below a) Determine gm for both MOSFETS )ndicate the configuration (topology) of each amplifier stage raw the small-signal equivalent circuit of the entire amplifier (with transistors) d) Find Av Vou/vs, R and R Note: lo 1mA, Kn-31 6mAN2 VM-1.73 Lambda0 Mi Config. Mz Config.- RS sk R4 100 C2 OuF Ro R2 50 C1 M1 100uF 50% Ri Vs R3 50k 000uF R10 1.8k
6.5 BI C2 Cl sig in 0 Design the bias circuit of the CE amplifier shown...
6.5 BI C2 Cl sig in 0 Design the bias circuit of the CE amplifier shown to obtain IE= 0.5 mA and Vc= +6 V. Design for a dc voltage at the base of 5 V and a current through RB2 of 50 μΑ. Let Vcc-+15 V, β-100, and VBE 0.7 V. a) Specify the values of RBi, RB2, RE, and Rc b) Also give the values of the BJT small-signal parameters gm, rr , and ro at the bias...
4. The amplifier shown below has Rsig-RL 1kQ. Rc 1kQ, RB 47 kQ. β 100, Cc1 a) Find the dc collect...
4. The amplifier shown below has Rsig-RL 1kQ. Rc 1kQ, RB 47 kQ. β 100, Cc1 a) Find the dc collector current of the transistor b) Find gm and IT c) Neglecting ro, find the midband voltage gain from base to collector (neglect the effect of RB) d) Use the gain obtained in part (c) to find the component of Rin that arises as a result of RB. Hence find Rin. e) Find the overall gain at midband f) Find...
The amplifier shown in Figure below has Rsig = R1 =1 k12, Rc= 1 k-2, RB...
The amplifier shown in Figure below has Rsig = R1 =1 k12, Rc= 1 k-2, RB = 47 k22, B = 100, 1=0.54 mA, Cu = 0.8 pF, and f1 =600 MHz (a) Find gm and r7. (b) Neglecting ro, find the midband voltage gain from base to collector (neglect the effect of RB). (c) Use the gain obtained in (c) to find the component of Rin that arises as a result of RB. Hence find Rin (d) What is...
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...
Example 13.4: For the figure below, a) Draw AC and DC load lines for both transistors....
Example 13.4: For the figure below, a) Draw AC and DC load lines for both transistors. b) Calculate the overall voltage gain Avs o/vs c) Find s(max) which produces maximum undistorted output voltage. 20V Q1 Q2 hFE=htp= 100 100k2 Rc 1k R VBE 0.6V R2>100k Q2 R. Cc Q1 Co 1kn o Vo R1 10k RE2 1k RL1K2 RE1 1kn CE Figure 13.6: An AC-coupled two-stage BJT amplifier for Example 13.4.
Example 13.4: For the figure below, a) Draw AC...
For the simple differential amplifier shown below, a) Calculate the differential gain, Av , of th...
For the simple differential amplifier shown below,
a) Calculate the differential gain, Av , of the circuit
b) Calculate the common-mode gain, ACM, of the
circuit and compute CMRR
c) The common-mode gain can be reduced by replacing the resistor
RE, with a constant current source. Design a current
source that is not dependent on Beta linearly to
replace RE, transistors of the same characteristics as
Q1 and Q2, and resistors of your choice
*(Q1, Q2 = 120; ro =...
The 1 mA. V, ls -VE -15 15 V, in the following differential amplifier circuit, Vcc parameters are given as β, 100, VBE# 0.7 V, pr-25 mV, K.-100 V. transistor Rc-10 kΩ For: RE-150 Ω Rc Rc REE-200...
The 1 mA. V, ls -VE -15 15 V, in the following differential amplifier circuit, Vcc parameters are given as β, 100, VBE# 0.7 V, pr-25 mV, K.-100 V. transistor Rc-10 kΩ For: RE-150 Ω Rc Rc REE-200 kΩ a) What is the input differential resistance, Rid b) What is the overall voltage gain vV? You c) What is input common mode resistance, d) What is the worst case common mode gain that appear across the two input terminals? (4...
Problem #1 : For the Circut in the figure assume β-100 and VA-120. A) Calculate the...
Problem #1 : For the Circut in the figure assume β-100 and VA-120. A) Calculate the DC operating point of the transistor, gm ro, and r. (Neglect Early effect and ls for the DC analysis part) B) Calculate the small signal input and output resistance of the amplifier C) Calculate the small signal voltage and current gain of the amplifier L0V 20k 100 Vi k C1 ез 40k 3 k -10V
For the differential amplifier shown in Figure 6: Assume
well-matched transistors and = 100 for all transistors:
a) Why it is important to use well-matched transistors in
differential amplifier circuits? What is the potential influence of
mismatched transistors on the performance of the differential
amplifier?
b) Determine the resistor values (R1, R2 and R3) such that the
emitter coupled current IE = 0.5 mA and VC1 = 3 V.
c) Draw the ac equivalent circuit for the single ended...
l (33 PTS.) A MOSFET two-stage amplifier is shown below a) Determine gm for both MOSFETS )ndicate the configuration (topology) of each amplifier stage raw the small-signal equivalent circuit of the entire amplifier (with transistors) d) Find Av Vou/vs, R and R Note: lo 1mA, Kn-31 6mAN2 VM-1.73 Lambda0 Mi Config. Mz Config.- RS sk R4 100 C2 OuF Ro R2 50 C1 M1 100uF 50% Ri Vs R3 50k 000uF R10 1.8k
6.5 BI C2 Cl sig in 0 Design the bias circuit of the CE amplifier shown to obtain IE= 0.5 mA and Vc= +6 V. Design for a dc voltage at the base of 5 V and a current through RB2 of 50 μΑ. Let Vcc-+15 V, β-100, and VBE 0.7 V. a) Specify the values of RBi, RB2, RE, and Rc b) Also give the values of the BJT small-signal parameters gm, rr , and ro at the bias...
4. The amplifier shown below has Rsig-RL 1kQ. Rc 1kQ, RB 47 kQ. β 100, Cc1 a) Find the dc collector current of the transistor b) Find gm and IT c) Neglecting ro, find the midband voltage gain from base to collector (neglect the effect of RB) d) Use the gain obtained in part (c) to find the component of Rin that arises as a result of RB. Hence find Rin. e) Find the overall gain at midband f) Find...
The amplifier shown in Figure below has Rsig = R1 =1 k12, Rc= 1 k-2, RB = 47 k22, B = 100, 1=0.54 mA, Cu = 0.8 pF, and f1 =600 MHz (a) Find gm and r7. (b) Neglecting ro, find the midband voltage gain from base to collector (neglect the effect of RB). (c) Use the gain obtained in (c) to find the component of Rin that arises as a result of RB. Hence find Rin (d) What is...
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...
Example 13.4: For the figure below, a) Draw AC and DC load lines for both transistors. b) Calculate the overall voltage gain Avs o/vs c) Find s(max) which produces maximum undistorted output voltage. 20V Q1 Q2 hFE=htp= 100 100k2 Rc 1k R VBE 0.6V R2>100k Q2 R. Cc Q1 Co 1kn o Vo R1 10k RE2 1k RL1K2 RE1 1kn CE Figure 13.6: An AC-coupled two-stage BJT amplifier for Example 13.4.
Example 13.4: For the figure below, a) Draw AC...
For the simple differential amplifier shown below,
a) Calculate the differential gain, Av , of the circuit
b) Calculate the common-mode gain, ACM, of the
circuit and compute CMRR
c) The common-mode gain can be reduced by replacing the resistor
RE, with a constant current source. Design a current
source that is not dependent on Beta linearly to
replace RE, transistors of the same characteristics as
Q1 and Q2, and resistors of your choice
*(Q1, Q2 = 120; ro =...
The 1 mA. V, ls -VE -15 15 V, in the following differential amplifier circuit, Vcc parameters are given as β, 100, VBE# 0.7 V, pr-25 mV, K.-100 V. transistor Rc-10 kΩ For: RE-150 Ω Rc Rc REE-200 kΩ a) What is the input differential resistance, Rid b) What is the overall voltage gain vV? You c) What is input common mode resistance, d) What is the worst case common mode gain that appear across the two input terminals? (4...
Problem #1 : For the Circut in the figure assume β-100 and VA-120. A) Calculate the DC operating point of the transistor, gm ro, and r. (Neglect Early effect and ls for the DC analysis part) B) Calculate the small signal input and output resistance of the amplifier C) Calculate the small signal voltage and current gain of the amplifier L0V 20k 100 Vi k C1 ез 40k 3 k -10V
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