| 摘要 |
PROBLEM TO BE SOLVED: To actualize a multipoint output hold device, using a multiplexer means, which can hold the hold voltage of a sample holding capacitor at the value right before a control means hangs up when the control means hangs up. SOLUTION: The multipoint output hold device which charges sample holding capacitors corresponding to multiple points with the multipoint analog signal supplied cyclically on a time-division basis from a control means 1 through a one-channel DAC means 2 cyclically on a time-division basis by a multiplexer means 4 driven by the control means 1 is equipped with a multichannel DAC means 6 which is driven by the control means 1 and outputs multipoint analog signals at the same time and resistance means R1 to Rn which are connected among the sample holding capacitors C1 to Cn corresponding to the output of the multichannel DAC means 6.
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