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2. The inverting OP-AMP shown in the figure has an open loop gain of 100. The...
You have an otherwise ideal op-amp with an open-loop gain of 20. Design an inverting amplifier...
You have an otherwise ideal op-amp with an open-loop gain of 20. Design an inverting amplifier with this single op-amp so that it has a DC gain of -5 ±0.1. Also, please explain how this design works in words.
is the range of gain values expected from such a circuit? An inverting op amp circuit...
is the range of gain values
expected from such a circuit?
An inverting op amp circuit is fabricated with the resistors R, and R2 having x% tolerance (that is, the value of each resistance can deviate from the nominal value by as much as x%). What is the tolerance on the realized closed-loop gain? As- sume the op amp to be ideal. If the nominal closed-loop gain is -100 V/V and x = 5, what
A non-inverting amplifier using OP-amp is given in Figure Q4c. (8) Vout Vin 99 kN RL...
A non-inverting amplifier using OP-amp is given in Figure Q4c. (8) Vout Vin 99 kN RL 1 kQ AoL = 10s Figure Q4c Amplifier has the following properties. Open loop gain is 105 Open loop output impedance is 40 N Open loop bandwidth is 10 Hz Then, calculate The closed loop voltage gain. The closed loop output impedance. The closed loop bandwidth. i) ii) iii)
Q 1. An op amp with an open-loop gain of 6 x 105 and Vcc =...
Q 1. An op amp with an open-loop gain of 6 x 105 and Vcc = 10V has an output voltage of 3 V. If the voltage at the inverting input is -luV, what is the magnitude of the noninverting-input voltage? (5 points) Q2. The supply voltage of the op amp in the circuit of Figure 1 is 16 V. If R = 3kN, assign a resistance value to Rf so that the circuit would deliver 75 mW of power...
If the open loop gain of an op-amp is very large, does the closed loop gain depend upon the external components or th...
If the open loop gain of an op-amp is very large, does the closed loop gain depend upon the external components or the op-amp? Explain the meaning of open loop and closed loop operation of an op- amp? What is a practical op-amp? Draw its equivalent circuit.
2.152 An op-amp is connected in the inverting config- uration with R2 = 20 ks2 and...
2.152 An op-amp is connected in the inverting config- uration with R2 = 20 ks2 and Ri = 10ks, where R2 is the feedback resistor. The frequency response of the closed-loop amplifier is found to fall off at a frequency of 1.2 MHz (a) What is the op-amp's unity-gain frequency fo? (b) If the open-loop gain is 2 x 10%, what is the open- loop breakpoint frequency fp?
JU Oct 2017 5 Minute Test Your Understanding Quiz A compensated Op-Amp has an open-loop gain...
JU Oct 2017 5 Minute Test Your Understanding Quiz A compensated Op-Amp has an open-loop gain of 10' and a dominant pole of 8 Hz. The Op-Amp is used in a closed-loop single stage amplifier which has a low-frequency gain of 50. What is the -3 dB bandwidth of the closed-loop amplifier? Note: I know of at least two ways to solve this problem
An op-amp is to be selected for an inverting amplifier to be used at dc and...
An op-amp is to be selected for an inverting amplifier to be
used at dc and very low frequencies. A closed-loop nominal gain 0f
-100 is desired. Specifications indicate the minimum value of dc
open-loop gain cannot exceed 0.1dB. Assume in the design of problem
with the following additional specifications given:
dc output due to input offset voltage
100mV
dc output due to input offset voltage
5mV
Determine the maximum value of input offset voltage allowed for
the op-amp. If...
ELEC324/624 2018 Page 4 i) (2 marks) The open-loop frequency response of the LM748 op-amp is...
ELEC324/624 2018 Page 4 i) (2 marks) The open-loop frequency response of the LM748 op-amp is shown in the figure be for two different values of the external compensating capacitor, Ci.If provides unity-gain compensation, determine the capacitance the op-amp for a closed-loop gain of 3 dB. C-30 pF required to compensat Open Loop Frequency Response 120 100 80 40 20 -20 FREQUENCY(Hx) j) (2 marks) Describe how delay in the loop of any feedback control system can seriously compromise the...
Problem 4 : The op amp is ideal, if the closed - loop gain of the...
Problem 4
:
The
op amp is ideal, if the closed
-
loop gain of the
following circuit is G=v
0
/v
s
=
-
5
0
, calculate
the value of the unknown resistor R
x
.
Figure 4
Problem 4: The op amp is ideal, if the closed-loop gain of the following circuit is G-Vo/vis 50, calculate e value of the unknown resistor Rx 5 ΚΩ 50 KS2 2 ΚΩ Figure 4
is the range of gain values
expected from such a circuit?
An inverting op amp circuit is fabricated with the resistors R, and R2 having x% tolerance (that is, the value of each resistance can deviate from the nominal value by as much as x%). What is the tolerance on the realized closed-loop gain? As- sume the op amp to be ideal. If the nominal closed-loop gain is -100 V/V and x = 5, what
A non-inverting amplifier using OP-amp is given in Figure Q4c. (8) Vout Vin 99 kN RL 1 kQ AoL = 10s Figure Q4c Amplifier has the following properties. Open loop gain is 105 Open loop output impedance is 40 N Open loop bandwidth is 10 Hz Then, calculate The closed loop voltage gain. The closed loop output impedance. The closed loop bandwidth. i) ii) iii)
Q 1. An op amp with an open-loop gain of 6 x 105 and Vcc = 10V has an output voltage of 3 V. If the voltage at the inverting input is -luV, what is the magnitude of the noninverting-input voltage? (5 points) Q2. The supply voltage of the op amp in the circuit of Figure 1 is 16 V. If R = 3kN, assign a resistance value to Rf so that the circuit would deliver 75 mW of power...
2.152 An op-amp is connected in the inverting config- uration with R2 = 20 ks2 and Ri = 10ks, where R2 is the feedback resistor. The frequency response of the closed-loop amplifier is found to fall off at a frequency of 1.2 MHz (a) What is the op-amp's unity-gain frequency fo? (b) If the open-loop gain is 2 x 10%, what is the open- loop breakpoint frequency fp?
JU Oct 2017 5 Minute Test Your Understanding Quiz A compensated Op-Amp has an open-loop gain of 10' and a dominant pole of 8 Hz. The Op-Amp is used in a closed-loop single stage amplifier which has a low-frequency gain of 50. What is the -3 dB bandwidth of the closed-loop amplifier? Note: I know of at least two ways to solve this problem
An op-amp is to be selected for an inverting amplifier to be
used at dc and very low frequencies. A closed-loop nominal gain 0f
-100 is desired. Specifications indicate the minimum value of dc
open-loop gain cannot exceed 0.1dB. Assume in the design of problem
with the following additional specifications given:
dc output due to input offset voltage
100mV
dc output due to input offset voltage
5mV
Determine the maximum value of input offset voltage allowed for
the op-amp. If...
ELEC324/624 2018 Page 4 i) (2 marks) The open-loop frequency response of the LM748 op-amp is shown in the figure be for two different values of the external compensating capacitor, Ci.If provides unity-gain compensation, determine the capacitance the op-amp for a closed-loop gain of 3 dB. C-30 pF required to compensat Open Loop Frequency Response 120 100 80 40 20 -20 FREQUENCY(Hx) j) (2 marks) Describe how delay in the loop of any feedback control system can seriously compromise the...
Problem 4
:
The
op amp is ideal, if the closed
-
loop gain of the
following circuit is G=v
0
/v
s
=
-
5
0
, calculate
the value of the unknown resistor R
x
.
Figure 4
Problem 4: The op amp is ideal, if the closed-loop gain of the following circuit is G-Vo/vis 50, calculate e value of the unknown resistor Rx 5 ΚΩ 50 KS2 2 ΚΩ Figure 4
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