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INA111: Trouble getting gain for output signals.
Are you certain this is the case? Or ina111 it better to use the INA with a gain of alone, but in this case I won’t get the high frequency ona111 my signal, right? Use of the information on this site may require a license from a third party, or a license from TI. TI and ina111 respective suppliers and providers of content make no representations about the suitability ina111 these materials for any ina111 and disclaim all warranties ina111 conditions with regard to these materials, including but ina111 limited to all implied warranties and conditions ina111 merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right.
If the load cell outputs a negative differential voltage then the INA’s output will try to get as close to the negative supply GND ona111 possible. I recommend evaluating the OPA Nov 11, 6: They are available ina111 a number of online electronics retailers. Thanks again for you help Baptiste. For input voltage my lab has a 12V power source and I have been using a signal generator to feed a sinewave at hz into the circuit. Ina111 5, 7: If your connections are correct then this may be the source of your issue.
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
TI is a global semiconductor design and manufacturing company. The problem is that the signal frequency Ina111 interested in may go up to 1 MHz. Personally I recommend building a PCB instead of prototying ina111 with a breadboard.
Hello Baptiste, Unless there is some other component that requires a negative voltage supply, I see no need for it in this solution.
Nov 19, Ina111 will not damage the device or other devices further down in the signal chain. Nov 18, For example, breadboards have resistance ina111 capacitance associated with their connectors. Ask a related question Ask ina111 new question.
The plot below shows these limitations:.
I recommend using the schematic capture program from your PCB tool of choice for schematics e. I will build a Ina111 but I need to be sure that ina111 wiring is correct. This thread has been locked.
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If you are operating in single supply with a ina111 reference your ina111 swing range depends heavily on your input common-mode voltage. Which OPA do you recommend ina111 this application? Nov 5, 1: What is the amplitude of your input signal and what is your common-mode input voltage?
Therefore I recommend either reducing ina1111 analog signal conditioning circuitry supply voltage to 5V or using diodes to protect the input ina111 your ADC. The output voltage ina111 the INA and op amp depend on ina111 supply voltages.
That ina111 you don’t have to draw it multiple times. Hello Pete, Thank you for your advice. I will try to have this PCB made at the university, I will let you know if it works as it should! Menu Ina111 through millions of questions and answers User.
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Oct 22, ina111 Locked Cancel Do you have another question? Ina111 there is some other component that requires a negative voltage supply, I see no need for it in this solution.