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Have you read what the datasheet says about the importance of proper grounding? Oct 17, 6.

I suspect our OP is looking for LFa quad op amp. I have tied PS ground,reference terminal and input signal “0”. Where did you get this number? Oct 18, 8.

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You also need to tell us what your load resistance is. Forums New posts Search forums. I don’t recall National ever making an LM They would have superior datadheet because the internal resistors are trimmed more accurately.

System works well for signal greater than 1 volt. But that is depending of the kind of sensor you’re actually using. Please suggest me where I am going wrong.

LM comparator/op-amp | Electronics Forum (Circuits, Projects and Microcontrollers)

Roff Well-Known Member Aug 24, Pls find the attached schematic. And we didn’t buy hamburgers at Mc Donalds According to the datasheet, a Ohm resistor is needed for a gain of Also the gain resistor lm37 a variable trimmer pot set at ohms. Please read Intersil’s Application Note ; it’s a great intro datashfet instrumentation amplifiers. Jul 17, 22, 1, But I am confused with the reference terminal.

That should be enough to provide input bias current. It seem like discontinue item.

The response time specified is for a mV input step with 5. Till now I am measuring with DVM.


LF347 as instrumentation Amplifier

Oct 20, Will I have to connect the reference terminal to these common. I also tried connecting to “0” of input signal. Replacement Transformer Datashest by ncag 16 minutes ago Replies: Roff Well-Known Member Aug 22, Oct 16, 1.

Oct 16, 2. Roff Well-Known Member Aug 23, Thread starter erictham83 Start date Aug 20, I tried with the method suggest by Wookie.

Oct 22, Instrumentation amplifier Posted by mik3 in forum: No, create an account now. Pay particular attention to Figs. Grounding the input circuit could be the reason of unlinearity if the sensor has to be floating refered to gnd. Its works fine with gain upto 5.

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