Question

1. Design an inverting amplifier with gain of ×10, and input impedance of 100Ω.

2. Design a non-inverting amplifier with a gain of ×10. Design the amplifier so that the output current from the op-amp at maximum output voltage +15V is no larger than 15 mA.

3. Design a current summing amplifier that finds the algebraic
sum of two input voltages: V_{OUT} = - (V_{1} +
V_{2}) . Design the amplifier so that output current from
the op-amp at maximum output voltage +15 V is no larger than 10
mA.

Answer #1

1. For an inverting amplifier with a voltage gain of -10 and an
input resistance of 1 kilohm, calculate the value of the feedback
resistor (Rf) in kilohms.
2. For a non-inverting amplifier with a voltage gain of 11, what
is the ratio of R2 to R1?
3. Which pin of the 741 op-amp should be connected to the
positive supply voltage (e.g. +15V)?
4. For an inverting amplifier with a voltage gain of -20 and an
input resistance of...

design (and draw ) an inverting amplifier by using op pamp with
a voltage gain equals to -10 (Acl=Vout/Vin)

Derive expressions (VOLTAGE GAIN,CURRENT GAIN,INPUT
IMPEDANCE, OUTPUT IMPEDANCE) FOR the following NEGATIVE FEEDBACK
OPERATIONAL AMPLIFIER...
Diagrams should be included
1)Voltages series feedback
2)Voltage shunt feedback
3)Current series feedback
4)Current shunt feedback.
*step by step solution

a)What is the formula for the gain of an inverting operational
amplifier circuit with input resistor Ri and feedback resistor Rf?
Draw the circuit.
b)What is the formula for the gain of a non-inverting
operational amplifier circuit with input resistor Ri and feedback
resistor Rf? Draw the circuit.
c)What is the gain of a voltage follower operational amplifier
circuit? What is the input impedance of this circuit? Draw the
circuit.

Primary way to control open loop
gain?
Using input resistors
Positive feedback
Apply negative feedback
Ground one input
One type of internal op amp
failure
Constant high input
Constant low output
Either a or b
None of the above
A summing amplifier
Algebracally adds the diffrence
between two inputs
Algebraically adds two
inputs
Algebraically adds any bumber of
inputs
None of the above
With negative feedback
Input voltage easily deive an op
amp into no linear operation
Gain is nearly...

Consider an op-amp connected in an inverting configuration to
realize a closed-loop gain of -100 V/V utilizing resistors of 1k
and 100 k. A load resistance RLis connected from the output to
ground, and a low-frequency sine-wave signal of peak amplitude
Vpeakis applied to the input. Let the op amp be ideal except that
its output voltage saturates at 10 Vand its output current is
limited to the range of 20 mA.
1) For RL = 1k, what is the...

1. Calculate the input difference in potential (eNI − eINV) for
an op amp amplifier with an output voltage of 10 V and an open loop
gain of
a. 2000
b. 30,000
2. Locate specifications for the LM741 and the LF411 (National
Semiconductor). For each determine the worst case a. input
impedance.
b. open loop gain
c. gain bandwidth.
3. Assuming β = 0.05, and AOL = 2000, calculate the closed loop
gain using the approximation.

Derive expressions (VOLTAGE GAIN,CURRENT GAIN,INPUT
IMPEDANCE, OUTPUT IMPEDANCE) FOR the following NEGATIVE FEEDBACK
AMPLIFIERS
Diagrams should be included
1)Voltages series feedback
2)Voltage shunt feedback
3)Current series feedback
4)Current shunt feedback.
*step by step solution

Using a 741 op-amp for every stage, design this circuit:
The input stage has a voltage gain of 10 and input impedance of
50 K?.
The low pass filter stage has a Sallen-Key (VCVS) third order
butterworth response and a cutoff frequency of 5KHz.
The output buffer stage has a voltage gain of 10.

Design the circuit of a source follower JFET amplifier biasing
circuit with load RL and input voltage internal resistance RS that
having a gain of +0.2. The specification of the circuit is given as
below: Supply voltage, VCC = +12 V; Input impedance, Zi = 10 k;
cut-off frequency from source capacitor, fLS = 40 Hz; cut-off
frequency from gate capacitor, fLG = 4 Hz; VGSQ = -2.86 V; IDSS =
16 mA and Vp = -4 V

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 12 minutes ago

asked 15 minutes ago

asked 17 minutes ago

asked 18 minutes ago

asked 25 minutes ago

asked 29 minutes ago

asked 32 minutes ago

asked 43 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago