ADVANTAGES OF INSTRUMENTATION AMPLIFIER

Instrumentation Amplifier

• An measurement amplifier picks out noise and interference signals and boosts signals that are very low.
• Heart rates, blood pressure, temperatures, shocks, and other things are all examples.
• So, here are the most important things that a good sensor amplifier should have:

• The signal energy at the inputs to the measurement amps will be very low. Because of this, the sensor amplifier needs to be reliable and have a high gain.
• The strength should be easy to change with a single knob.
• The input and output impedances should be high and low, respectively, to avoid overloading.
• The instrumentation amplifier needs to have a high CMRR because the transducer output usually has common-mode signals like noise when sent over long wires.
• It also needs to have a high slew rate to handle events with quick rise times and give the widest possible output voltage swing without any distortion.

Advantages of Instrumentation Amplifier

• The following are some of the benefits of the sensor booster:.
  Changing the value of just one resistor, Rgain, makes it easy to change the gain of a three-op-amp measurement amplifier circuit.
• The use of external resistors is the only thing that changes the amplifier's gain.
• The input resistance is very high because both amps 1 and 2 are set up as emitter followers.
• Because of the difference in amplifier 3, the measurement amplifier's output resistance is very low.
• Op-amp 3 has a very high CMRR, which means that almost all of the common mode output will be turned down.

Applications of Instrumentation Amplifiers

The uses of the instrumentation amplifier include the following:.

• These amplifiers are mostly used when high differential gain accuracy is needed, when strength needs to be maintained even in noisy environments, and when there are large common-mode signals. Here are some of the apps:
• It is possible to get data from small o/p sensors like thermocouples, strain gauges, Wheatstone bridge measures, and more with guidance amplifiers.
• These amplifiers are used for radio, guidance, medicine, and other things.
• In audio apps, like those that use low-amplitude audio data, these amplifiers are used to improve the S/N ratio (between signal and noise).
• These boosters are good for processing high-speed signals and taking pictures or videos.
• The high-frequency signal is made stronger with these boosters in RF wire systems.

IMAGE SOURCE (THUMBNAIL)