Goal: Build and examine a 3 op-amp instrumentation amplifier and a 1 op-amp difference amplifier. This will be a two week lab with one report.

1. Introduction

The instrumentation amplifier was discussed in class, and can also be found in Faissler chapter 32. Since this is your first “complicated” circuit, it will be helpful to try to lay it out on the prototype board neatly, in about the same configuration as the drawing of it. This will make it clearer that you have or have not wired up the circuit correctly. It will be useful if you can, at least partially, color code the wires that you use. It will also be helpful, before interconnecting the op-amps, to check each op-amp separately with gains near 1, to ensure that the chip functions. You do not need to take detailed data to do this. Add offset 10 K variable resistors if needed to set the output to 0 if the input is ground.

DETAILED ASSIGNMENT

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