It is two ..NascentOxygen said:
Minh Thanh said:
that is pH probe.berkeman said:
And the probe is sitting in mid-air, not immersed in a solution, during the times you observe the OP-AMP output drifting?Minh Thanh said:
I use power supply 5v from Arduino Nano that connected to Laptop by USBCWatters said:
what else is powered off the arduino?Minh Thanh said:
The output voltage of an opamp can drop due to a variety of factors such as the input voltage, the load resistance, and the opamp's own specifications. In general, the output voltage will drop if the opamp is not able to provide enough current to meet the load's demand.
Some common causes of voltage drop at the output of an opamp include an inadequate power supply, a high load resistance, or a mismatch between the input and output voltages. Additionally, opamps can have inherent limitations in their output current and voltage capabilities, which can also contribute to voltage drop.
In some cases, voltage drop at the output of an opamp can be prevented by using a more suitable opamp with higher output current and voltage capabilities. Additionally, ensuring that the power supply and load resistance are appropriate for the opamp can also help prevent voltage drop.
Voltage drop can significantly affect the performance of an opamp, as it can result in decreased output voltage, increased distortion, and reduced stability. It can also cause the opamp to operate outside of its specified range, leading to potential damage or malfunction.
There are several techniques that can be used to reduce voltage drop at the output of an opamp, such as using a lower load resistance, increasing the power supply voltage, or using a buffer amplifier. Additionally, careful selection and design of the opamp circuit can also help reduce voltage drop and improve performance.
