Hi,
I have an off the shelf Sony camera remote controller which works with the LANC protocol. The record button on it has two contacts (after all it's just a pushbutton). I want to push this button electronically with a 10 volt pulse of around 100ms duration.
I was considering using a solid state relay (for it's low operating current and high switching speed) but realise that these devices, like optocouplers with open collector outputs or even mosfet types will require some current to flow at the output for it to work properly (I assume otherwise the outputs are left esentially floating open).
Naturally, I don't want to impose any currents or voltages into a circuit which I have no shematic for and fear damaging it or the camera!
Would a mechanical relay still be the best choice in this case as its outputs are completely isolated from the input and need no pullup resitors or anything on their output side?
What about the Analog Devices ADG452 series of chips for such an application? Thinking about it. I guess the pushbutton on the remote controller when closed must have current flowing through it so the ADG452 might just work OK. I may have answered my own question here.
Tnx
I have an off the shelf Sony camera remote controller which works with the LANC protocol. The record button on it has two contacts (after all it's just a pushbutton). I want to push this button electronically with a 10 volt pulse of around 100ms duration.
I was considering using a solid state relay (for it's low operating current and high switching speed) but realise that these devices, like optocouplers with open collector outputs or even mosfet types will require some current to flow at the output for it to work properly (I assume otherwise the outputs are left esentially floating open).
Naturally, I don't want to impose any currents or voltages into a circuit which I have no shematic for and fear damaging it or the camera!
Would a mechanical relay still be the best choice in this case as its outputs are completely isolated from the input and need no pullup resitors or anything on their output side?
What about the Analog Devices ADG452 series of chips for such an application? Thinking about it. I guess the pushbutton on the remote controller when closed must have current flowing through it so the ADG452 might just work OK. I may have answered my own question here.
Tnx