Hello Chris,

As has been suggested by many a simple potential divider will do the job.

And the value of this potential divider ( nothing but a simple potetiometer ) will depend on the drive capability of your 0-16V output stage. Idea is not to load the output stage by wiring a potentiometer with too low a value.



For example, in the above setup the value of P1 is critical. The current through that ( worst case when V=16V ) will be (16/P1)x1000 mA. And this mA should be atleast 10 times smaller than the drive capability of the output stage.

Calibration is easy : Just apply 16V to the pot and adjsut the wiper to get 5V. The setup will now give a 0-5 for a 0-16.

In this, it is assumed that the 0-5V is fed to a high impedance circuit like the input of an opamp. ANd here again the rule-of-10 will apply - the impedance of that input circuit must 10 times larger than the value of P1.

From all this one thing is evident : A potential divider is simple but getting the CORRECT value for it needs some work.

Raghu