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bphui
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The output voltage of op amp is greater than the power supply voltage (+/- 5V). Is Op amp burned out?
Yes, I have replaced it and the result is still the same.BiGyElLoWhAt said:Probably. Have you tried replacing it?
Is it of the order of one of your input voltages?
Is your volt-meter or sensor hooked up to v out and not to your inputs?
Do you possibly have it set up as +10/0V as opposed to +/-5V?
Ground the negative terminal of op amp.BiGyElLoWhAt said:What are you referencing as ground on your voltmeter? Is it the ground off of the power supply?
What other voltage is connected to the output. The output of the circuit cannot be outside of the power rails without some other power source pulling that point up.bphui said:The output voltage of op amp is greater than the power supply voltage (+/- 5V). Is Op amp burned out?
pin 4 connect to -5vSvein said:Your schematic does not show which pins you use to connect to the power supply.
I noticed this too. The whole things looks a bit odd. Wondering what is connected to the header?Svein said:Using 100MΩ feedback with a 0.22μF input capacitor is a recipe for trouble. The time constant is 22 seconds - so it will take forever to stabilize.
The header connects with pvdf film.Averagesupernova said:I noticed this too. The whole things looks a bit odd. Wondering what is connected to the header?
Is 100M feedback with 0.22uF and 1000pF?Svein said:Using 100MΩ feedback with a 0.22μF input capacitor is a recipe for trouble. The time constant is 22 seconds - so it will take forever to stabilize.
An op amp can burn out due to excessive current, voltage spikes, overheating, or incorrect circuit connections.
You can check for a burned out op amp by performing a voltage check using a multimeter. If the output voltage is significantly lower than the input voltage, it may indicate a burned out op amp.
In most cases, a burned out op amp cannot be fixed and will need to be replaced. However, if the cause of the burnout was a temporary overload or voltage spike, the op amp may return to normal functioning once the issue is resolved.
Yes, a burned out op amp can potentially damage other components in the circuit if it is not detected and replaced. It is important to check for a burned out op amp if you suspect any issues with your circuit.
To prevent an op amp from burning out, make sure to follow the recommended operating conditions and circuit connections specified in the datasheet. Also, use proper power supply and decoupling techniques to avoid voltage spikes. Regularly checking for any issues or overloads in the circuit can also prevent op amp burnout.