MODULE 3_IPCC(Summing,DAC,Comparators)

What is the maximum number of input signals a summing amplifier can have?

• No more than two input signals

• Two or more input signals

• A closed-loop input impedance of infinity

• A small open-loop voltage gain

If the two supply voltages are ±12 V, what is the MPP value of an op amp closest to?

• 0

• -12V

• +12V

• 24V

In the Circuit shown,

1. Name of Circuit

2. Output across Node 1

3.Output voltage equation across Node 2 is.

• Summer with two inputs

  -v1

  vout=v1+v2

• Subtractor

  V1

  vout=v2-v1

• Subtractor

  -V1

  vout=v1-v2

• Summer with two inputs

  v1

  vout=v1+v2

In the circuit shown,R1 = 1 kΩ, R2 = 2 kΩ, R3 = 3 kΩ, R4 = 4 kΩ, R5 = 5 kΩ, and Rf = 6 kΩ. What is the voltage gain of each channel?

• Av1=-6

  Av2= -3

  Av3= 4.26

  Av4= 5

• Av1=-6

  Av2= -3

  Av3= 4.26

  Av4= 3.19

• Av1= 6

  Av2= 3

  Av3= -4.26

  Av4= -5

• Av1= 6

  Av2= 3

  Av3= -4.26

  Av4= -3.19

The voltage Gain of Averager Circuit with 4 inputs is

• 1/3

• 4

• 1/4

• 3

The Circuit shown is

• Subtractor

• Summer with 3 inputs

• Averager

• None

The maximum and minimum output for Binary Weighted Resistor DAC is

• -1.875,0

• -0,-1.275

• 0,1.875

• 0,-1.875

Binary-weighted D/A converter changes

• Analog input to Digital output

• Digital input to Analog voltage.

• Digital to Digital

• None

The output equation for weighted Resistor DAC is

• vout = –(v0 + 0.5v1 + 0.25v2 + 0.125v3)

• vout = –(v3 + 0.5v2 + 0.25v1 + 0.125v0)

• vout = (v3 + 0.5v2 + 0.25v1 + 0.125v0)

• vout = –(v3 + 0.5v2 + 0.25v1 + 0.25v0)