Hello,
I want to build a difference amplifier using the operational amplifier TL081CN. I use 100 Kohm Resistors for the circuit and my supply is +Vcc=+10V and -Vcc=0V. The result is that when i try to make this circuit work with the same voltage in the inputs i get Vout ≈ 1.3V at the output instead of the normal Vout=0V.Moreover when I apply different voltages at the input i don't get their difference but something else. My query is if the specific IC cannot work as a difference amplifier or if i do something wrong with the supply voltages. I have also tried with voltages +Vcc=+5V and -Vcc=-5V but the circuit still didin't work.
I want to build a difference amplifier using the operational amplifier TL081CN. I use 100 Kohm Resistors for the circuit and my supply is +Vcc=+10V and -Vcc=0V. The result is that when i try to make this circuit work with the same voltage in the inputs i get Vout ≈ 1.3V at the output instead of the normal Vout=0V.Moreover when I apply different voltages at the input i don't get their difference but something else. My query is if the specific IC cannot work as a difference amplifier or if i do something wrong with the supply voltages. I have also tried with voltages +Vcc=+5V and -Vcc=-5V but the circuit still didin't work.