| 摘要 |
The high speed A-D converter comprises a more significant digit digital coding A-D conversion circuit (2) for converting an input analog voltage signal to a coded more significant digit digital signal, an excess output conversion circuit (22) for producing an excess output signal for alternate binary or natural binary on the basis of the input analog voltage signal and having an input terminal (21) common to an input terminal (23) of the circuit (2), and a less significant digit digital coding A-D conversion circuit (8) connected in series to the excess output conversion circuit (22), whereby the excess output signal producing processing operation is carried out simultaneously with the processing operation of the more significant digit digital signal. <IMAGE> |
