I need to design a instrumentation amplifier. I read somewhere other input of instrumentation amplifier could not be zero. What could be other appropriate signal that could be applied??? please help...
Sorry, I do not understand your question. There are many examples of instrumentation amplifiers online.
What is your use for it?
Jan
What is your use for it?
Jan
Please be more specific. What is the exact purpose of the amp you need ? What kind of electrical signal you want to amplify ? What are you expecting at the output ? Etc.
Pierre.
Pierre.
It works 🙂 You have no output because both inputs are set up the same. Add a 180 degree shift to one of the voltage sources.
Try this.
Try this.
ok. Thank you.
Is it possible to design in amp without dual power supply(without giving negative voltage)??
Is it possible to design in amp without dual power supply(without giving negative voltage)??
Yes and no... its not ideal.
You would need to bias both inputs to half supply voltage and connect R4 to this half supply voltage point. The inputs and the output would then need to be AC coupled.
If you do that, use FET opamps and create a single half supply (it doesn't have to be exact) reference point.
You would need to bias both inputs to half supply voltage and connect R4 to this half supply voltage point. The inputs and the output would then need to be AC coupled.
If you do that, use FET opamps and create a single half supply (it doesn't have to be exact) reference point.
Heya, its working quite well. But as soon as I change my input to 1.2, it shows square wave in output. I s it bcoz of resistor values??
You have to much gain in relation to the low supply voltage. Try making R6 into 20k
Have to leave it for now 🙂
Have to leave it for now 🙂
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