current to voltage Quiz Practice Quiz | current to…

Q: Which of the following circuits is commonly used to convert a current signal to a voltage signal?

Transimpedance Amplifier (TIA) — TIAs are specifically designed for current-to-voltage conversion.

Q: In a basic TIA, the feedback element is usually a:

Resistor — A resistor provides the voltage drop proportional to the input current.

Q: The voltage output of a TIA is directly proportional to the input current and:

The feedback resistor value — Output voltage = input current * feedback resistance.

Q: What is the primary advantage of using a TIA for current-to-voltage conversion?

All of the above — TIAs offer all the listed advantages.

Q: What happens to the output voltage of a TIA if the input current increases, assuming a constant feedback resistor?

Increases — The output voltage is directly proportional to the input current.

Q: What is the unit of the transimpedance gain (gain of a TIA)?

Both a and b — Gain = Output Voltage/ Input Current = V/A. Ohms also represent resistance.

Q: Which of these is a common application of a TIA?

Photodiode amplifiers — Photodiodes generate current proportional to light intensity, which is then converted by TIA.

Q: Increasing the feedback resistance in a TIA will:

Increase the output voltage for a given input current — Output voltage = input current * feedback resistance.

Q: What is a potential disadvantage of a TIA with a very large feedback resistor?

Increased noise — Larger resistors generate more thermal noise.

Q: How does the input impedance of a TIA ideally appear to the current source?

Very low — Ideally, the inverting input of the op-amp has very low impedance.

Question 1 of 10

Which of the following circuits is commonly used to convert a current signal to a voltage signal?

TIAs are specifically designed for current-to-voltage conversion.

Question 2 of 10

In a basic TIA, the feedback element is usually a:

A resistor provides the voltage drop proportional to the input current.

Question 3 of 10

The voltage output of a TIA is directly proportional to the input current and:

Output voltage = input current * feedback resistance.

Question 4 of 10

What is the primary advantage of using a TIA for current-to-voltage conversion?

TIAs offer all the listed advantages.

Question 5 of 10

What happens to the output voltage of a TIA if the input current increases, assuming a constant feedback resistor?

The output voltage is directly proportional to the input current.

Question 6 of 10

What is the unit of the transimpedance gain (gain of a TIA)?

Gain = Output Voltage/ Input Current = V/A. Ohms also represent resistance.

Question 7 of 10

Which of these is a common application of a TIA?

Photodiodes generate current proportional to light intensity, which is then converted by TIA.

Question 8 of 10

Increasing the feedback resistance in a TIA will:

Output voltage = input current * feedback resistance.

Question 9 of 10

What is a potential disadvantage of a TIA with a very large feedback resistor?

Larger resistors generate more thermal noise.

Question 10 of 10

How does the input impedance of a TIA ideally appear to the current source?

Ideally, the inverting input of the op-amp has very low impedance.

current to voltage Quiz