analog optocoupler including light bulb + ldr

[xeratule]

Hi all,

I want to know if there is a standart component (optocoupler) which has light bulp at input side (instead of LED) and at output side a LDR (light dependent resistor)
I don't want led input because I want the LDR voltage to change with the voltage change at input side.

Thanks in advance.

Erhan

 

[goldsmith]

Hello dear Erhan
As i understood from your title , you want an analogue opto couplers ? if , yes , you can try IL300 . if no , tell me more explanation , about things that you need .
Best Wishes
Goldsmith

 

[betwixt]

Almost all opto-couplers will work in analog mode, only the ones with logic level outputs can't be used that way. There are 'special' analog types with very linear transfer characteristics, most will not be linear but may still be adequate for your needs.

Brian.