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DRIVER CIRCUIT FOR DIFFERENTIALLY OUTPUTTING DATA FROM INTERNAL CIRCUITLY OF AN LSI TO THE OUTSIDE OF THE LSI
DRIVER CIRCUIT FOR DIFFERENTIALLY OUTPUTTING DATA FROM INTERNAL CIRCUITLY OF AN LSI TO THE OUTSIDE OF THE LSI
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机译：用于将数据从LSI内部电路差异输出到LSI外部的驱动器电路
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摘要
The present invention is to suppress a differential skew in differential data transmission. ; When the drain potential of the NMOS transistor (M0) (Vtt) is lower than the reference voltage (Vctrl), the output of the operational amplifier 4 rises, and an increase in the substrate potential of the NMOS transistors (M1, M2), the NMOS transistors (M1, M2 ) it is reduced on-resistance value. As a result, the drain potential of the NMOS transistor (M0) (Vtt) is raised. On the other hand, the NMOS transistor (M0) of the drain potential (Vtt), the reference potential (Vctrl) higher when the operational amplifier 4, the output is lowered, and the NMOS transistors (M1, M2) of the substrate potential is lowered, the NMOS transistors (M1 , the on-resistance value of M2) increases. As a result, the drain potential of the NMOS transistor (M0) (Vtt) is lowered. By this feedback action, the drain potential of the NMOS transistor (M0) (Vtt) becomes equal to the reference voltage (Vctrl). ; NMOS transistor, the operational amplifier
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