Wide bandwidth feedback amplifier
    1.
    发明授权
    Wide bandwidth feedback amplifier 失效
    宽带反馈放大器

    公开(公告)号:US4079337A

    公开(公告)日:1978-03-14

    申请号:US736927

    申请日:1976-10-29

    CPC分类号: H03F1/486 H03F1/34

    摘要: A wide bandwidth characteristic is provided for use as in a negative feedback amplifier by a deposited resistor arrangement. The arrangement includes a basic feedback resistor having a high resistance value and a narrow elongated shape. Closely positioned on the same substrate and physically parallel are one or more low value resistors having the same length and with adjacent points on the respective resistors being at the same electrical potential. The feedback capacitance is greatly reduced by the extra length. The capacity to ground, and thus the displacement current, is essentially eliminated since most of the stray capacitance is between points of equal potential.

    摘要翻译: 提供宽带宽特性用于通过沉积电阻器布置在负反馈放大器中使用。 该装置包括具有高电阻值和窄细长形状的基本反馈电阻器。 位于同一衬底上并且物理上平行的是一个或多个具有相同长度的低值电阻器,并且相应电阻器上的相邻点处于相同的电位。 反馈电容通过额外的长度大大降低。 接地容量以及位移电流基本消除,因为大多数杂散电容在相等电位点之间。