Abstract
The purpose of this brief is to introduce a hybrid adaptive coordinate rotation digital computer (HA-CORDIC) implemented on 65-nm silicon on thin buried oxide technology. The supply voltage of HA-CORDIC ranges from 0.25 V to 1.2 V and the lowest energy in active mode and sleep mode are 2.4 pJ/cycle and 0.003 pJ/cycle, respectively. By changing body bias voltages, the leakage current can be reduced to as small as 1.0 nA. Its experimental results proves that HA-CORDIC is potentially a good choice for low-power and high-precision applications in comparison with the previous work.
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