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    • 8. 发明授权
    • Off-chip driver
    • 片外驱动
    • US07586332B2
    • 2009-09-08
    • US11829086
    • 2007-07-27
    • Chih-Jen Chen
    • Chih-Jen Chen
    • H03K19/094
    • H03K19/018507
    • A driver includes a plurality of first PMOS transistors, a first resistor, a amplifier, a second PMOS transistor and a second resistor. The amplifier herein receives a reference voltage and outputs a regulating voltage. The above-mentioned reference voltage is produced in accordance with a band-gap reference voltage. Since the band-gap reference voltage is unlikely affected by a process variation, thus, the present invention is capable of providing an output current robust from process characteristic and the output current is more reliable to indicate a data signal.
    • 驱动器包括多个第一PMOS晶体管,第一电阻器,放大器,第二PMOS晶体管和第二电阻器。 这里的放大器接收参考电压并输出调节电压。 上述参考电压根据带隙基准电压产生。 由于带隙参考电压不太可能受到工艺变化的影响,因此本发明能够提供从工艺特性得到鲁棒的输出电流,并且输出电流更可靠以指示数据信号。