Hi:
I am trying to automate an LED to work as a light emitter as well as a light detector by electronic control. I tried using MAX4053A to act as a SPDT switch, but it does not work. On one of the inputs of the SPDT switch, I am trying to give the constant current input for the LED. Other input will have a detector connected to it. The COM output will have LED connected to it. So I am trying to solve this issue. Is there a proper SPDT switch which will solve this problem. I am looking at a very low noise switch, because the current to be detected is in the nano-amp range. Other ideas to solve this issue is greatly appreciated..
Thanks..
I am trying to automate an LED to work as a light emitter as well as a light detector by electronic control. I tried using MAX4053A to act as a SPDT switch, but it does not work. On one of the inputs of the SPDT switch, I am trying to give the constant current input for the LED. Other input will have a detector connected to it. The COM output will have LED connected to it. So I am trying to solve this issue. Is there a proper SPDT switch which will solve this problem. I am looking at a very low noise switch, because the current to be detected is in the nano-amp range. Other ideas to solve this issue is greatly appreciated..
Thanks..