发明名称 |
METHOD AND CIRCUIT FOR LOW POWER VOLTAGE REFERENCE AND BIAS CURRENT GENERATOR |
摘要 |
Circuits for generating a PTAT voltage as a base-emitter voltage difference between a pair of bipolar transistors. The circuits may form unit cells in a cascading voltage reference circuit that increases the PTAT voltage with each subsequent stage. The bipolar transistors are controlled using a biasing arrangement that includes an MOS transistor connected to a current mirror that provides the base current for the bipolar transistors. A voltage reference is formed by combining a PTAT voltage and a CTAT voltage at the last stage. The voltage reference may be obtained from the voltage at an emitter of one of the bipolar transistors in the last stage.
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申请公布号 |
US2013038317(A1) |
申请公布日期 |
2013.02.14 |
申请号 |
US201213648639 |
申请日期 |
2012.10.10 |
申请人 |
ANALOG DEVICES, INC.;ANALOG DEVICES, INC. |
发明人 |
MARINCA STEFAN |
分类号 |
G05F3/16 |
主分类号 |
G05F3/16 |
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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