An integrated circuit has one or more components that operate with reference
to
a distributed reference voltage. A reference voltage driver produces a compensated
reference voltage, and the compensated reference voltage is distributed to form
the distributed reference voltage at the components. Due to factors such as trace
resistance and gate leakage, the distributed reference voltage is degraded relative
to the compensated reference voltage. The reference voltage driver is responsive
to feedback derived from the distributed reference voltage to adjust the compensated
reference voltage so that the distributed reference voltage is approximately equal
to a nominal reference voltage.
