Open Loop Compensation

This section reports open loop Body-Bias control implemented in two designs. The first one is based on a microprocessor hosting bias control hardware and the compensation software, using a C-code look-up table to adjust bias according to temperature via periodic interrupt handler. The second one is based on a full ASIC logic flow and applies a combination of linear laws to achieve voltage and temperature compensation. In both cases, the bias laws are derived from the bias response exposed in Sect. 3.2 . The comparison of both methods is made for the reader to take his decision on which approach best suits his circuit need.