Question

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.

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...

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

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

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

Design an operational amplifier circuit that performs the
mathematical operation of differentiation – the circuit produces a
voltage which is directly proportional to the input voltage’s
rate-ofchange with respect to time

Use MultiSim to demonstrate:
Using an LM 324 operational amplifier, build an amplifier
circuit that has a gain of -15.
Use the waveform generator to produce a 1Vpp sine wave. Use the
sine wave as an input to your amplifier circuit.
Display the input waveform and the output waveform on the
oscilloscope.

In a two-story voltage amplifier circuit, there is PNP on the
first floor and NPN on the second floor. A total of 10 resistors
and a total of 5 capacitors were used in the circuit, 5 resistors
per floor. Re resistance of PNP transistor is 63.31 Ω and re
resistance of NPN transistor is 15.25 Ω. The input impedance of the
first floor is 212.36 Ω and the input impedance of the second floor
is 9.1 K Ω. There is...

What is the function of an operational amplifier in the detector
circuit for a photodiode or phototube?

The elements in series RCL circuit are a 800 W resistor, a 600
mF capacitor, and a 200 mH inductor. The frequency of
the ac signal is 60 Hz. If Vmax is 170 V, what is the
voltage across the (a) resistor (b) capacitor and (c)
inductor? What is the impedance of the
circuit? Calculate the current in the circuit. What is
the resonance frequency of the circuit?

What purposes might there be for implementing an amplifier
circuit with a gain near(or reasonably close to) 1 which also
doesn’t filter frequencies

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