Input buffer using a differential amplifier
    10.
    发明授权
    Input buffer using a differential amplifier 失效
    使用差分放大器的输入缓冲器

    公开(公告)号:US5955896A

    公开(公告)日:1999-09-21

    申请号:US606852

    申请日:1996-02-26

    CPC分类号: H03K5/2481

    摘要: In an input circuit for semiconductor devices, such as an address buffer, an arrangement is provided which obviates the timing margin from capture of an input signal to its latching and outputting, thereby increasing the operation speed of the input circuit. The address buffer includes a differential amplifier Ai which receives an input signal Ai and outputs a pair of differential signals A-come-first-served latch circuit detects, latches and outputs one of the paired differential signals that has changed first. Activation/inactivation of the differential amplifier is done by turning on and off an N-channel MOS transistor through a Set signal. When activated, the differential amplifier generates a potential difference between the paired differential signals and, when inactivated, has its paired differential signals go low.

    摘要翻译: 在诸如地址缓冲器的半导体器件的输入电路中,提供了一种排除了将时序余量从捕获输入信号到其锁存和输出的布置,从而增加了输入电路的操作速度。 地址缓冲器包括差分放大器Ai,其接收输入信号Ai并输出一对差分信号A先来先生的锁存电路检测,锁存和输出首先改变的成对差分信号之一。 差分放大器的激活/失活是通过设置信号来打开和关闭N沟道MOS晶体管来实现的。 当被激活时,差分放大器产生成对的差分信号之间的电位差,当失活时,它的成对差分信号变低。