发明名称 |
Voltage regulator for generating a constant reference voltage which does not change over time or with change in temperature |
摘要 |
An improved voltage reference circuit is shown for use in analog integrated circuits including A/D and D/A converters. The voltage reference circuit comprises an operational amplifier having an non-inverting terminal connected to a capacitor. The inverting terminal of the op amp is connected to the op amp output terminal. The output terminal provides a constant reference voltage which is a function of the voltage charged in the capacitor. The capacitor includes a floating gate, an isolating layer, and a controlling gate which is used to charge (program) the capacitor to a fixed voltage. The capacitor structure is such that its charge is maintained constant over time independent of any temperature change. As a result, the voltage reference circuit prevents fluctuations in the output reference voltage throughout its operating period.
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申请公布号 |
US5184061(A) |
申请公布日期 |
1993.02.02 |
申请号 |
US19910708285 |
申请日期 |
1991.05.30 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
LEE, BANG-WAN;BAE, YL-SUNG |
分类号 |
G05F1/10;G05F1/46;G05F1/56;G05F3/24;G05F3/30;H01L21/822;H01L27/02;H01L27/04 |
主分类号 |
G05F1/10 |
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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