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What is a difference between an operational amplifier and instrumentation amplifier and can you use one opamp to perform a same task as 3 opamp instrumentation amplifier?
Marjanfardanesh
An op amp is made from transistors, resistors and capacitors. It is enclosed in a "chip".
A basic instrumentation amp is made of 2 op-amps.
you can't have a single op-amp perform as good as a instrumentation amp, although it can perfrom the same task.
An i-amp has much better CMMR (common-mode rejection) and a higher input impedance.
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∙ 14y ago
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