2 8 Apprpximate adder consists of 18 transistors has TED of 2 and DSP integrated with the adder

摘要

The present invention relates to an approximate adder circuit and a digital signal processor (DSP) integrated with the approximate adder circuit. More specifically, the present invention relates to the approximate adder circuit which can output a carry output signal and a sum signal having the total error distance (TED) of two only with eight transistors, and the DSP integrated with the approximate adder circuit.