Question

Design an Instrumentation amplifier using three non-ideal OPAMPS to have a gain of 90. The feedback resistors for all the OPAMPS are 50KΩ. Assume the input bias current 70nA and supply voltage of 12 volts.
a. Use E24 standard resistors for design.
b. Calculate error introduced at the output of each OPAMP due to the bias current. Validate your answers with simulation results.
c. How to compensate for the error at the output of each OPAMP? Simulate and discuss the compensation result.
d. Is bias compensation necessary for the Instrumentation Amplifier? Justify your answer.
e. If the individual OPAMPs have different bias currents, discuss the instrumentation amplifier output error with simulation results

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Design of Instrumentation Amplifier Using Three Non-Ideal OPAMPS in MULTISIM

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