| 摘要 |
PROBLEM TO BE SOLVED: To provide an analog input-output device capable of compensating analog-to-digital or digital-to-analog transformation in real-time.SOLUTION: An analog input-output device includes: an ADC 7; a DAC 3; a first error detection part 20 for detecting a first error 27 between a reference digital signal 10 and a logical reference digital signal; a first error compensation signal generation part 21 for generating a first error compensation signal 11 from the first error 27; a first compensation part 13 for generating a compensated digital signal 28 by converting an analog feedback signal 6 to a digital feedback signal 8, and compensating the converted signal by the first error compensation signal 11; a second error detection part 22 for detecting a second error 29 between the compensated digital signal 28 and a digital signal 25; a second error compensation signal generation part 23 for generating a second error compensation signal 16 from the second error 29; and a second compensation part 14 for compensating the digital signal 25 by the second error compensation signal 16, and transmitting the compensated signal to the DAC 3. |
