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Tagged with wheatstone-bridge ltspice
4 questions
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Wheatstone bridge and difference op-amp
I use Wheatstone bridge as a dual voltage divider to feed both inverting and non-inverting inputs of differential op-amp:
Theoretically voltage can be calculated using voltage divider expression: Va =...
- 323
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Output voltage formula verification of operational amplifier circuit
I'm trying to built an op-amp circuit for a PT100 temperature sensor. I've found the following circuit diagram online (from a polish website):
I'm trying to find the formula for the output voltage as ...
- 11
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AD8422 LTSpice simulation
I am trying to simulate a wheastone bridge amplified with an AD8422. In principle, with a Rg of 500 ohm, it should give me a gain of 40, according to $$ G = 1 + 19.8k\Omega/R_G $$ but instead I get a ...
- 13
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Current sink - work in simulator, doesn't work in real
I've built current sink to drive wheatstone bridge. I've counted that I must reach current ~0.2mA to properly working whole measure system. Picture below present my current sink (I use MCP6001 op amp):...
