Digital to analog converter for fiber optic gyroscope

A digital to analog converter for fiber optic gyroscope, comprising:

• a random unit generating a random number signal;
• a plurality of encoding units coupled with the random unit, wherein each of the plurality of encoding units receives the random number signal and a plurality of digital signals, and each of the plurality of encoding units converts the plurality of digital signals to a plurality of spin signals according to the random number signal;
• a plurality of control units respectively one to one coupled with the plurality of encoding units, wherein each of the plurality of control units receives the plurality of spin signals, and converts the plurality of spin signals to a plurality of logic signals through a clock signal;
• a current source array for generating a total current and formed by a plurality of sub-arrays, wherein each of the sub-arrays coupled with a respective one of the plurality of control units;
• and
• an output load electrically connected to the current source array, wherein the total current passes through the output load and forms an analog voltage signal at both ends of the output load;
• wherein each of the plurality of sub-arrays, a respective one of the plurality of encoding units, and a respective one of the plurality of control units forms an independent circuit branch;
• and
• wherein the independent circuit branches are connected in parallel, each of the independent circuit branches generates a sub-current according to a respective one of the plurality of logic signals, and the total current is a sum of the sub-currents.