To measure output voltage of Light sensor LDR, i used voltage divider circuit like the one on the attachment. I have a problem of measuring output voltage of motion sensor called Infrared photo detector (rs: 2017729) using voltage divider circuit because it has three pins for drain, source and ground. can anyone help me with the circuit diagram that i must use.
That sensor is specifically designed to detect IR heat emmissions from the human body. Look it up on Futurelec and you'll find the matching control IC.