Part Number:INA105
Hello,
I am using the INA105 in a circuit with a supply voltage of 28 V DC, which I connected to pin 7. Furthermore, I connected pin 4 to the ground. On page 7 In the datasheet of the INA105, the precision unity-gain inverting amplifier is shown with a gain error of 0.01 % maximum. However, when I apply a voltage of 10 V to the input pin 2, the output pin 6 gives me a voltage of around -9.43 V. This isn't precise enough for my application. I also switched the INA105 against another INA105 and received a voltage of around -9.45 V. All ICs were handled using ESD protection. Any hints?