What exactly do you mean by "clamping the output"? I actually need 0.5V
to 4.5V output, and Vdd will be 5V. But I was looking for the A/D
feedback,etc for accuracy, since the PWM voltage output will be subject
to variations in Vdd.
On 4/12/2012 4:41 AM, Richard Prosser wrote:
> How about clamping the output PWM at a level a bit below the supply
> voltage? That would reduce the dependency. Just watch out for
> temperature variation! RP