| 摘要 |
A digital-to-analog converter comprises two code-voltage converters, a control automat, two code multiplexers, two additive error correctors, two multiplicative error correctors, two amplifiers, a reference voltage source, a reference code source, two keys, three switches, first and second multiplexers inputs are parallel connected to the reference code source, third inputs are connected to input of digit-to-analog converter, output of first multiplexer through first code-voltage converter, first additive error corrector, first multiplicative error corrector is connected to first inputs of the first amplifier and output switch; output of second multiplexer through second code-voltage converter a second additive error corrector, a second multiplicative error corrector are connected to first input of the second amplifier and second input of the output switch, output of which being output of the digital-to-analog converter. Second inputs of the amplifier are connected to output of the reference voltage source, output of the first amplifier is connected to input of first switch through first key, two outputs of which are connected to control inputs of the first additive error corrector and first corrector of multiplicative errors. Output of second amplifier through second key is connected to input of second switch; two outputs of which are connected to control inputs of the second additive error corrector and second corrector of multiplicative error. First, second, third, fourth, fifth, sixth, seventh, eighth outputs of the control automat are connected to control inputs of multiplexers, switches, keys, the reference voltage source and output switch, correspondingly. |
