发明名称 |
Method of testing analog/digital converter and structure of analog/digital converter suited for the test |
摘要 |
A method of testing a successive comparison type analog/digital converter which incorporates a voltage comparator, a register for successive comparison and a digital/analog converter. A reference digital signal is inputted to the incorporated digital/analog comparator to be converted into an analog signal, while a digital signal corresponding to the reference digital signal is inputted to an externally provided reference digital/analog converter to be converted into an analog signal. Both analog signals thus produced are compared with each other through the incorporated voltage comparator to thereby determine conversion accuracy. A successive comparison type analog/digital converter suited for the test includes further a change-over switch for introducing the externally supplied digital signal to the incorporated digital/analog converter and a changeover switch for leading outwardly the output signal from the voltage comparator.
|
申请公布号 |
US4580126(A) |
申请公布日期 |
1986.04.01 |
申请号 |
US19840669349 |
申请日期 |
1984.11.08 |
申请人 |
HITACHI, LTD. |
发明人 |
KATO, KAZUO;HIRAYAMA, TAKESHI;YOSHIDA, SHIGEAKI;SATO, YOSHINORI |
分类号 |
G01R31/00;G01D21/00;H03M1/00;H03M1/10;H03M1/48;(IPC1-7):H03K13/09 |
主分类号 |
G01R31/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|