发明名称 |
POWER-UP CALIBRATION OF CHARGE REDISTRIBUTION ANALOG-TO-DIGITAL CONVERTER |
摘要 |
Using a power-up delay circuit on an analog/digital converter integrated circuit (i.e., an analog-to-digital converter or a digital-to-analog converter) to generate a signal delayed from power-up, and initiating a calibration of the converter upon detecting the delayed signal. In preferred embodiments, calibration can also be initiated in response to a signal on a calibration input pin of the integrated circuit, and the duration of the delay can be derived from a reference (e.g., by charging an external capacitor with it) or from the duration of a calibration operation. Circuitry can be provided to automatically place the circuit in an operating mode upon power-up that keeps the integrated circuit in shutdown mode when it is not converting or calibrating.
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申请公布号 |
WO9622632(A1) |
申请公布日期 |
1996.07.25 |
申请号 |
WO1996US00698 |
申请日期 |
1996.01.18 |
申请人 |
ANALOG DEVICES, INC. |
发明人 |
GARAVAN, PATRICK, J.;BYRNE, EANONN |
分类号 |
H03M1/00;H03M1/10;H03M1/46;H03M1/80;(IPC1-7):H03M1/10;H03M1/38 |
主分类号 |
H03M1/00 |
代理机构 |
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主权项 |
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