【应用】圣邦微双通道高精度电流检测放大器SGM835T用于200G QSFP56光模块,最大增益误差仅0.4%
随着数据中心流量不断增长,其对带宽的要求也越来越高,200G QSFP56光模块是专门为200G以太网互联而设计的光模块。一般情况下,将两个200G QSFP56光模块分别插入对应的交换机端口,再用一根单模或者多模光纤相连,就可以实现200G的传输速率。在某个客户的方案设计中DSP需外挂一颗driver,该driver没有电流上报功能,所以想通过DAC采样电流检测芯片处的电压直接给MCU信息。需要多通道小封装的电流检测芯片,综合客户需求,给客户推荐SGMICRO双通道高精度电流检测放大器SGM835,应用电路如下图所示:
SGM835T的共模输入电压范围为-0.3V-70V,可获得20V/V的增益,其主要参数如下:
光模块里需要小封装产品,其封装如下图所示:
SGM835TXG/TR是一颗双通道高精度电流检测放大器,电路检测芯片要求精度必须高,因这个地方的电流是通过DAC采集该芯片处的电压,发送数据给MCU,从而换算得到实际的电流值,SGM835T的最大增益误差只有0.4%,可以满足客户需求,并且小封装的WLCSP-2×1-8B非常适合光模块的应用设计,世强作为圣邦微的优秀代理商可以提供及时的技术服务与稳定的供货支持。
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【应用】国产高精度、双通道轨对轨输出运算放大器芯片SGM8252应用于显示屏驱动器,失调电压低至3μV
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描述- SGMICRO specializes in high-performance and high-quality analog and mixed-signal integrated circuits, and is committed to building a comprehensive portfolio of the highest quality analog and mixed-signal integrated circuits to address all customer needs.
型号- 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现货市场
服务
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满足150W内适配器、PD快充、氮化镓快充等主流产品测试需要;并可查看被测开关电源支持协议,诱导多种充电协议输出,结合电子负载和示波器进行高精度测试。测试浪涌电流最大40A。支持到场/视频直播测试,资深专家全程指导。
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