Chapter 9
Instrumentation Amplifier Noise
This chapter focuses on noise analysis and simulation in instrumentation amplifier circuits. Methods for minimizing noise in instrumentation amplifier design are also discussed.
9.1 Short Review of Three Amp Instrumentation Amplifier
Instrumentation amplifiers (INAs) are used to amplify small differential signals. Most INAs contain several resistors and op-amps. While it is possible to build them using discrete components, there are many advantages of using monolithic integrated circuit INAs. It would be difficult to achieve the accuracy and size of a monolithic INA with discrete components.
Figure 9.1 shows the topology of a three amp INA as well as some of the key connections. The three amp INA is ...
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