LMV321IDCKR 当INPUT输入拉高为3.3V时,正常输出为3.3V,异常输出0.19V ,当INPUT输入拉低为0V时,正常输出为0V,异常输出0.14V,测量VCC电压3.36V。LMV连接测试图如下
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LMV321IDCKR 当INPUT输入拉高为3.3V时,正常输出为3.3V,异常输出0.19V ,当INPUT输入拉低为0V时,正常输出为0V,异常输出0.14V,测量VCC电压3.36V。LMV连接测试图如下
您好,
当INPUT输入拉高为3.3V时,正常输出为3.3V,异常输出0.19V
INPUT输入3.3V时已经超出了 LMV321输入共模范围。LMV321在2.7V供电时,输入共模范围是0V ~1.7V,可以估算在3.3V供电时其输入共模范围是0V ~2.3V。超出这个范围,LMV321会工作异常。
当INPUT输入拉低为0V时,正常输出为0V,异常输出0.14V,
如上datasheet 截图所示,LMV321在单电源供电时,其输出范围到不了0V,距离0V有个gap,具体数值与外接负载有关,大概几十mV到几百mV。