ELEC 243 Lab

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Introduction

Last week we looked at several op-amp circuits for amplifying voltages. While there are many things you can do with a voltage amplifier, there are also many things that you can't. In particular, the optoelectronic transducers we studied in Lab 2 have nonlinear behavior in terms of their voltages, but very linear behavior in terms of current. To effectively utilize these, we will need amplifiers which accept and deliver currents rather than voltages.