Power 741 op amp with +9 and -5 ?

[LordVader88]

I have a few power supply's of different voltages, but for convenience a.t.m. can I use +9 and it's -5, it has a ground of course too

 

[Studiot]

Yes, but you will only be able to obtain an output swing based on the lower voltage ie about -4.5 volts. +5 volts will obviously be attainable since it is nowhere near 9.

 

[Carl Pugh]

According to my reading of the LM741 specification,
For power supply voltages of +9 volt, -5 volt and load resistance greater than 10,000 ohm, a typical LM741 will have an output voltage range of +8 volt to -4 volt

 

[vk6kro]

According to my reading of the LM741 specification,
For power supply voltages of +9 volt, -5 volt and load resistance greater than 10,000 ohm, a typical LM741 will have an output voltage range of +8 volt to -4 volt

Yes, but for an input signal that is symmetrical about the ground point, the maximum output will depend on the lower of the two supply voltages.

In this case, because the negative supply is only 5 volts, distorted output will result if the negative output is driven beyond about -4 volts, although the positive output may be clean.

 

[alphysicist]

I would say that using +9V and -5V to power a 741 op amp is possible, but it may not be the most optimal choice. The 741 op amp typically requires a dual power supply with symmetric voltages (i.e. +V and -V) to function properly. Using +9V and -5V may result in an uneven supply and could potentially affect the performance of the op amp.

Additionally, the ground connection is important as it serves as a reference point for the voltages. It is important to ensure that the ground connection is properly connected and has a stable voltage to avoid any potential issues with the op amp.

If possible, I would recommend using a dual power supply with symmetric voltages to power the 741 op amp. This will provide a more stable and balanced power supply, allowing the op amp to function at its optimal level. However, if using +9V and -5V is the only option, it is important to carefully consider the potential effects on the op amp's performance and to ensure that the ground connection is properly connected and stable.