IR analog sensor

Hello,
I want to ask if there is an analog IR sensor, I tried the receiver module but it it's digital one so it gives 6 v or zero v and doesn't change with distance. I thought of a photo transistor but the problem is that it receives all the visible range too not only the IR
so Is there any Ideas?

To use ir for range sensing you typically pulse the source and time the return trip.

LTX71CM said:

To use ir for range sensing you typically pulse the source and time the return trip.

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Which is pretty difficult at the speed of light.

For short range robot sensors you can use the 38KHz modules, sending different power pulses out and checking for a return, but it's obviously pretty crude.