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电流型运放为什么要在输入端加一个50欧姆的电阻接地
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刘琦
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Jul 27, 2009, 4:46:14 AM
7/27/09
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内容如题
七画
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Jul 27, 2009, 6:54:27 AM
7/27/09
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被同样的问题困惑着,高手请解答啊!
On 7月27日, 下午4时46分, 刘琦 <
liuqi_...@163.com
> wrote:
> 内容如题
redkiller
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Jul 28, 2009, 9:58:10 PM
7/28/09
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仔细描述问题,把电路图在附件中给出,认真命名。
虫儿飞
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Jul 30, 2009, 5:28:15 AM
7/30/09
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不仅仅是电流型的输入端小电阻接地,同样高速的电压反馈型的运放同样有小电阻接地,50欧姆小电阻接使得输入阻抗限制在50欧姆左右,进而前后阻抗匹
配。进一步说明期待高手详细说明。
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