Hi all, I need some assistance in choosing a good op amp for building a differential op amp. I am having problems using the LM741 with 4 x 27Kohm resistors to set the unity gain. The output is less than the difference of the voltages i am trying to subtract (for example i input 9V and 0V to the terminals and it outputs something like 6.3V). I even tried using the 1NA106KP differential amplifier integrated circuit but when i tried 10V and 9V , i keep getting roughly 1.3V as the output.
Can anyone post some good op amps to create the differential amplifier that gives close to the actual value of the difference between the inputs?
or/and
Can you explain why i keep possibly getting that 1.3V?
Or what to possibly look for in a datasheet when choosing the op amp.
~Thanks
Can anyone post some good op amps to create the differential amplifier that gives close to the actual value of the difference between the inputs?
or/and
Can you explain why i keep possibly getting that 1.3V?
Or what to possibly look for in a datasheet when choosing the op amp.
~Thanks