发明名称 |
Control circuit for an output driving stage of an integrated circuit |
摘要 |
An impedance control circuit controls the impedance of an integrated output driving stage. The integrated output driving stage includes at least one enabling/disabling transistor and at least one driving transistor. The impedance control circuit includes a variable impedance circuit having an impedance that varies with the temperature in correlation with the impedance of the output driving stage. A control circuit is connected to the variable impedance circuit for generating at least one enabling/disabling signal for the at least one enabling/disabling transistor based upon a control signal correlated to the impedance of the variable impedance circuit. The impedance control circuit also includes a current generating circuit for applying to the variable impedance circuit a current which remains substantially stable as the temperature varies.
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申请公布号 |
US6567318(B2) |
申请公布日期 |
2003.05.20 |
申请号 |
US20010991493 |
申请日期 |
2001.11.21 |
申请人 |
STMICROELECTRONICS S.R.L. |
发明人 |
BEDARIDA LORENZO;VANDI LUCA;LISI CARLO;BELLINI ANDREA |
分类号 |
G05F3/24;(IPC1-7):G11C16/04 |
主分类号 |
G05F3/24 |
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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