it is mainly used for increasing the gain of the circuit
amplifies power nedded at the source having less power need from generator
The differential voltage is amplified using the instrumentation amplifier.This is the inference we know from instrumentation amplifier...
A instrumentation amplifier is a special purpose linear amplifier used to amplify low level signals. These are used in many industrial and medical applications.
a differential amplifier helps to increase the CMRR which in turn helps avoid unwanted signals that couple into the input to get propagated. IT also helps to increase the signal to noise ratio. furthermore it provides larger output voltage swings.
The advantage of chopper amplifiers is that they help to amplify really low signals with high gains. This is commonly useful for electronic instrumentation.
for better amplification ...by instrumentation amplification we get the output admittance will be more
The differential voltage is amplified using the instrumentation amplifier.This is the inference we know from instrumentation amplifier...
A instrumentation amplifier is a special purpose linear amplifier used to amplify low level signals. These are used in many industrial and medical applications.
a differential amplifier helps to increase the CMRR which in turn helps avoid unwanted signals that couple into the input to get propagated. IT also helps to increase the signal to noise ratio. furthermore it provides larger output voltage swings.
The advantage of chopper amplifiers is that they help to amplify really low signals with high gains. This is commonly useful for electronic instrumentation.
You use a thermocouple as the input to the amplifier circuit.
1.differential amplifier 2.operational amplifier 3.instrumentation amplifier 4.chopper amplifier 5.isolation amplier
Here is qn excellent article that explains step by step: http://MasteringElectronicsDesign.com/how-to-derive-the-instrumentation-amplifier-transfer-function/
for better amplification ...by instrumentation amplification we get the output admittance will be more
Vo=(R2/R1)(V2-V1)
Advantages:Even a small value of input voltage can be amplified using instrumentation amplifier.Disadvantages:For transmission purpose for long range, noise also gets superimposed along the original wave. Therefore specific cables are used to reduce noise.
An instrumentation amplifier is made out of 2 or 3 operational amplifiers.
a high common mode rejection ratio, high impedance