Gain trimming in instrumentation amplifier-based systems
Jim Williams
Abstract
Gain trimming in instrumentation amplifier-based systems is discussed.
Keywords
Gain trimming
instrumentation amplifier
Gain trimming is almost always required in instrumentation amplifier-based systems. Gain uncertainties, most notable in transducers, necessitate such a trim.
Figure 411.1, a conceptual system, shows several points as candidates for the trim. In practice, only one of these must actually be used. The appropriate trim location varies with the individual application.
Figure 411.1 Conceptual Transducer Signal Conditioning Path Showing ...
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