发明名称 |
Analog-to-digital converter having programmable dynamic range |
摘要 |
A programmable timer controls the duration of integration with respect to time of an unknown analog signal in accordance with a programmable time period established by a microprocessor. A switching logic successively transfers an analog signal and a voltage reference signal to an integrator under logic control actuated by the programmable timer. A comparator monitors the value of the integration of the reference voltage in order to control the time-out results of an event counter initiated simultaneously with input to the integrator of the reference voltage, for providing a digital count output signal to the microprocessor.
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申请公布号 |
US4644323(A) |
申请公布日期 |
1987.02.17 |
申请号 |
US19800181528 |
申请日期 |
1980.08.26 |
申请人 |
THE PERKIN-ELMER CORPORATION |
发明人 |
CHAMRAN, MORTEZA M.;SCOTT, LARKIN B.;WILLIAMS, PAUL B. |
分类号 |
H03M1/00;(IPC1-7):H03M1/52 |
主分类号 |
H03M1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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