Patent ID: 6140953
Filing Date: 2000-10-31
Classification: H03M

Abstract:
A D/A converting apparatus for converting a digital signal into an analog signal, comprising:a first D/A converter for converting said digital signal as a first digital signal into said analog signal as a first analog signal, the output range of said first analog signal being determined by a second and a third analog signal as reference signals input to said first D/A converter;a second D/A converter for converting a second digital signal into said second analog signal, the output range of said second analog signal being determined by two reference signals input to said second D/A converter; anda third D/A converter for converting a third digital signal into said third analog signal, the output range of said third analog signal being determined by two reference signals input to said third D/A converter; wherein said first digital signal, said second digital signal, and said third digital signal each represent separate digital values, and whereinsaid first D/A converter, said second D/A converter and said third D/A converter are configured in a cascade arrangement, with circuit components of said second D/A converter being completely separated from circuit components of said first D/A converter.