Techniques to Protect Amplifiers from Overvoltage

First, understand how the amplifier behaves under fault conditions

Common-mode overvoltage on the inputs is a potential problem in any analog measurement system that interfaces to the "outside" world. Op amps and instrumentation amplifiers often have the difficult job interfacing to external signal sources, such as sensors or other electronics, which may expose the system to voltages that exceed the parts' absolute maximum ratings. Read full article


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Joe Buxton