Patent ID: 7698802

Claim:
A method for manufacturing a calibration device for an active circuit on a chip, said method comprising: providing an active circuit capable of exhibiting a range of electrical characteristics including a desired electrical characteristic, said active circuit having one or more control input terminals; providing a calibration mechanism on-chip with the active circuit, said calibration mechanism generating a control output and comprising a device under test (DUT) configured as a replica of at least one segment of the active circuit and which receives the control output and generates a test output that causes finite adjustments to the control output based on a comparison of the electrical characteristics exhibited by the DUT with a known electrical characteristic; and attaching to each control input terminal of the active circuit a corresponding control output from the calibration mechanism, wherein the control output of the calibration mechanism dynamically adjusts control input applied to devices of the active circuit to force the active circuit to exhibit the desired electrical characteristic.