4 4 Apprpximate adder consists of 4 transistors has TED of 4 and DSP integrated with the adder

摘要

The present invention relates to an approximate adder circuit and a digital signal processor (DSP). 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 four only with four transistors, and the DSP integrated with the approximate adder circuit.