I was wondering if someone could help me with the following electronics problem.
I am currently trying to implement a circuit using a LM13700 Operational Transconductance Amplifier.
I basically want to use it as a voltage controlled current source. However when I vary the input voltage the output current does not change.
The bias current Iabc is at 4uA and the diode current Id is at 1mA.
The supply voltage is + and - 8V.
Does anybody have any idea whats wrong?