I am Satyabrata. I am using AD600 JN for a Variable Gain Amplifier. I am getting very peculiar result.
I used only A1 amplifier of AD600 just to check its single stage operation.
Pin 1- GROUND
Pin 2- Input
Pin 3- GROUND
Pin 16- Control Voltage (0.6 Volt)
Pin 15- GROUND
Pin 14- OUTPUT
Pin 12- -5V
Whenever i am simulating it, i am getting correct output. But, when i am trying it on bread board, i am getting output sinusoidal signal even if i am not giving any input signal on pin 2. How is it possible? It seems like anything feedback stuff is here.
Please help me.