As part of my project I need to invert a pulse train without changing it's amplitude. Hence I want to use an Op-Amp as an inverting amplifier with unity gain. I'm using the circuit given in the following tutorial.
https://www.electronics-tutorials.ws/opamp/opamp_2.html
And also the schematic I'm using.
https://imgur.com/a/pu8L3
I chose LM324 to implement the circuit. I've used a single Op-Amp i.e. pins 1, 2 & 3, two 1K resistors for input and feedback resistances and connected pin 4 to battery's +ve terminal and pin 11 to the
-ve terminal. I tested it with a 9v battery and as far as I understand, the output should be -9V. But my multimeter shows the output fluctuating around 0.98V.
I want to know if I'm doing something wrong or if LM324 can't be used as an inverting amplifier?
https://www.electronics-tutorials.ws/opamp/opamp_2.html
And also the schematic I'm using.
https://imgur.com/a/pu8L3
I chose LM324 to implement the circuit. I've used a single Op-Amp i.e. pins 1, 2 & 3, two 1K resistors for input and feedback resistances and connected pin 4 to battery's +ve terminal and pin 11 to the
-ve terminal. I tested it with a 9v battery and as far as I understand, the output should be -9V. But my multimeter shows the output fluctuating around 0.98V.
I want to know if I'm doing something wrong or if LM324 can't be used as an inverting amplifier?