【选型】国产双通道运放SGM8558-2XG/TR用于工业电源模块,电源抑制比达到130dB
国内某工业电源模块项目,以前一款双通道运放一直用国外品牌,由于国产化、交期、价格等因素,想要找一款国产化替代品,推荐圣邦微电子(SGMICRO)SGM8558-2XG/TR。
SGM8558-2XG/TR工作原理图及相关重要参数
从上图可知:
双通道运放SGM8558-2XG/TR具有高精度、小体积、低成本等特性,工作电压为单电源2.8V~5.5V,电源抑制比达到130dB,增益带宽积15MHz,转换速率为8V/μs,支持轨到轨输入及输出,这些都满足工业电源模块的需求。更重要的,该运放输入失调电压为15μV,噪声仅7.5nV/Hz,这两个指标决定了SGM8558-2XG/TR具有很好的高精度特性。
SGM8558-2XG/TR封装为SOIC-8,工作温度-40℃~+125℃,这些都为工业方面常规参数,完全客户满足工业电源模块的需求。
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