| 摘要 |
PURPOSE: An output buffer circuit is provided to reduce a consumed power and operate in a high speed, by using as a pull-up transistor an NMOS transistor instead of a PMOS transistor. CONSTITUTION: A driver(200) consists of an inverter control part(220), an inverter part(210) and a compensation part(230). The inverter control part(220) is supplied with the first output signal of a delay part(100). The inverter part(210) is supplied with an output signal of the inverter control part and the second output signal of the delay part. The inverter part(210) consists of the first NMOS transistor(N211) used as a pull-up transistor and the second NMOS transistor(N212) used as a pull-down transistor. The compensation part(230) receives the first output signal of the delay part to compensate a transfer characteristic of the inverter part(210).
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