Current sink - work in simulator, doesn't work in real
Options: - 


IC broken
Power pins reversed or 
Input pins reversed
Resistor values are not what you think
8k06 Resistor might be an inductor - check it out
Maybe the output pin is not connected correctly (wrong pin)
Output shorted to ground (solder splash/error)
1.6 volt input not connected to correct place
1.6 volt input shorted with solder splash
Power supply broken or not switched on
Oscilloscope/meter not connected properly
Meter not reading DC but AC
Oscilloscope/meter not working
The laws of physics have finally decided not to work LOL


The last one is a really scary thought.