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So I am working on a bigger circuit, and this bit is part of that bigger circuit. Basically in the circuit we have a simple op amp, which apparently represents an instrumentation amplifier. What confuses me is that in this instrumentation amplifier i have 2 different inputs and one goes to V+ and the other to V-.
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June 04, 2020 |
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Can you share the actual schematic you're working on? We don't have enough information to answer your question. An instrumentation amplifier can be made from op-amps plus resistors, or you can buy one off-the-shelf as a single component like the Analog Devices AD8221. Take a look at this link for the datasheet. In addition to power supplies, it requires other inputs: a gain resistor, and a reference voltage. |
June 04, 2020 |
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