What is the purpose of an instrumentation amplifier?

• The purpose of an instrumentation amplifier is to attenuate small differential signals with high accuracy and precision.

• The purpose of an instrumentation amplifier is to amplify large differential signals with high accuracy and precision.

• The purpose of an instrumentation amplifier is to amplify small differential signals with high accuracy and precision.

• The purpose of an instrumentation amplifier is to filter small differential signals with high accuracy and precision.

Which component is commonly used in instrumentation amplifiers?

• resistor

• capacitor

• operational amplifier

• transistor

What is the gain equation for an instrumentation amplifier?

• Gain = (2 + (2*R2/R1))*(1 + (R4/R3))

• Gain = (2 + (2*R2/R1))*(1 + (R3/R4))

• Gain = (2 + (2*R2/R1))*(1 - (R4/R3))

• Gain = (2 + (2*R2/R1))*(1 + (R4/R3)) + 1

Which type of amplifier is commonly used as the first stage in an instrumentation amplifier?

• power amplifier

• inverting amplifier

• differential amplifier

• operational amplifier

What is the advantage of using an instrumentation amplifier?

• It provides high input impedance, high common-mode rejection ratio, and low output impedance.

• It provides low input impedance, high common-mode rejection ratio, and low output impedance.

• It provides high input impedance, low common-mode rejection ratio, and high output impedance.

• It provides low input impedance, low common-mode rejection ratio, and high output impedance.

Which of the following is an application of instrumentation amplifiers?

• Measurement of small signals in the presence of noise

• Generation of random signals

• Filtering of high-frequency noise

• Amplification of large signals

What is the main source of noise in instrumentation amplifiers?

• mechanical vibrations

• thermal noise

• electromagnetic interference

• quantum noise

How can the noise in an instrumentation amplifier be reduced?

• By increasing the signal path length and using high-noise components.

• By using low-noise components, minimizing signal path length, shielding from external interference, and proper grounding techniques.

• By not using any shielding or grounding techniques.

• By using high-noise components and maximizing external interference.

What is the common mode rejection ratio (CMRR) of an instrumentation amplifier?

• Low

• Medium

• Variable

• High

Which of the following is not a characteristic of an ideal instrumentation amplifier?

• High common-mode rejection ratio

• Low gain

• High input impedance

• Low input impedance