【应用】纳芯微四通道数字隔离器NSI8240W1-DSWR用于能谱分析仪，CMTI典型值达250kV/μs

时间： 2023-05-26 来源：世强

技术问答

客户的能谱分析仪用于分析计量不同元素的能量，不只测量煤炭的灰分信息，其应用更加广泛。系统是多通道的，采集不同的信号，主要通过探头或传感器采集元素的能量信息，经过运放放大和ADC模数转换，传输到主控，这里有颗电压基准源用于给运算放大器抬高输入电压。此外主控输出数字信号，需要一颗数字隔离器来起到信号隔离的作用，应用框图如下：

本文介绍纳芯微电子的四通道数字隔离器NSI8240W1-DSWR，支持高达5kVrms绝缘耐受电压，同时在低功耗下提供高电磁抗扰度和低辐射。该器件提供数字信道方向配置和当输入掉电时的默认输出电平配置。宽电源电压范围支持直接与大多数数字接口连接，易于进行电平转换。另外高系统级别的EMC性能也增强了使用的可靠性和稳定性，非常适用于客户的能谱分析仪项目。

NSI8240W1-DSWR的优势体现于：

1、CMTI典型值达250kV/μs，共模瞬变抗扰度高，这使得信号完整性好，EMC性能也更好；

2、数据速率为DC至150Mbps，传播延迟低于15ns，信号通讯快；

3、工作温度宽至-55 C~125℃，产品稳定性高；

4、每通道电流消耗值1.5mA，有效降低系统功耗。

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数据手册 - 纳芯微电子 - Revision 1.7 - 2024/4/3 PDF 英文下载

NSi824x High Reliability Reinforced Quad-Channel Digital Isolators Datasheet

型号- NSI8240W1- DSWWR,NSI8242BW1-DSWR,NSI8240W0- DSWWR,NSI8240N0-DSPNR,NSI824XS-DSSR,NSI8240,NSI8241,NSI8241S1-DSSR,NSI8241N1-DSPNR,NSI8242S0- DSSR,NSI8240W0- DSWR,NSI8242S1-DSSR,NSI8242,NSI8240N1-DSPNR,NSI8241W0- DSWR,NSI8240S0- DSSR,NSI8241BW1-DSWR,NSI8241W0- DSWWR,NSI824XW-DSWR,NSI8242N1-DSPNR,NSI8240BW1-DSWR,NSI8241W1- DSWWR,NSI8241S0- DSSR,NSI8242W0- DSWR,NSI824XW-DSWWR,NSI8240BW0-DSWR,NSI8242BW0-DSWR,NSI8242W1- DSWR,NSI824X,NSI8241BW0-DSWR,NSI8241S1- DSSR,NSI8242N0-DSPNR,NSI8242W0- DSWWR,NSI8242W1- DSWWR,NSI8241N0-DSPNR,NSI824XN-DSPNR,NSI8240X0,NSI8240X1,NSI8241X0,NSI8240W1- DSWR,NSI8241W1- DSWR,NSI8242S0-DSSR,NSI8241X1,NSI8242X0,NSI8240S1- DSSR,NSI8242X1

数据手册 - 纳芯微电子 - Revision 1.5 - 2023/2/7 PDF 英文下载查看更多版本

NSi824x High Reliability Reinforced Quad-Channel Digital Isolators Datasheet

型号- NSI8242W1-DSWR,NSI8240W0-DSWWR,NSI8241W1-DSWR,NI8242W0-DSWWR,NI8240N0-DSPNR,NSI8241W0-DSWWR,NI8242BW1-DSWR,NI8242S1-DSSR,NI8241S1-DSSR,NSI824XS-DSSR,NI8240S1-DSSR,NSI8240,NSI8241,NSI8240B,NSI8242,NSI824XW-DSWR,NI8242N0-DSPNR,NSI8242B,NI8241N0-DSPNR,NI8240W1-DSWWR,NSI824XW-DSWWR,NI8242BW0-DSWR,NI8240S0-DSSR,NI8242W1-DSWWR,NI8241BW0-DSWR,NSI824X,NSI8241W0-DSWR,NI8240BW0-DSWR,NSJ8240,NSI8240W0-DSWR,NSI8242W0-DSWR,NI8241BW1-DSWR,NI8242N1-DSPNR,NI8241N1-DSPNR,NSI(82)(4)(1)(B)(W)(1)-DSWR,NSI824XN-DSPNR,NI8240BW1-DSWR,NI8240W0-DSWWR,NI8240N1-DSPNR,NI8242S0-DSSR,NSI8240W1-DSWR,NI8241W0-DSWWR,NI8241S0-DSSR,NSI8241B

数据手册 - 纳芯微电子 - Revision: 1.5 - 2023/2/7 PDF 英文下载

NSi824x High Reliability Reinforced Quad-Channel Digital Isolators Datasheet

型号- NSI8242W1-DSWR,NSI8240W0-DSWWR,NSI8241X0,NSI8241W1-DSWR,NSI824X-DSPNR,NSI824XHIGH,NSI8241X1,NSI824XX1,NSI824XX0,NSI824XS,NSI8240,NSI8241,NSI8242,NSI8240N1-DSPNR,NSI824XN,NSI8241BW1-DSWR,NSI824XW-DSWR,NSI8242W0-DSWWR,NSI8242N1-DSPNR,NSI8242B,NSI8240S1-DSSR,NSI8241W0-DSWR,NSI824X,NSI8242S1-DSSR,NSI8241BW0-DSWR,NSI8242N0-DSPNR,NSI824XN-DSPNR,NSI8241W1-DSWWR,NSI8240W1-DSWR,NSI8240X0,NSI8240X1,NSI8242BW1-DSWR,NSI8241W0-DSWWR,NSI8242X0,NSI8242X1,NSI8240N0-DSPNR,NSI824XS-DSSR,NSI8241S0-DSSR,NSI8241N1-DSPNR,NSI8240B,NSI8240S0-DSSR,NSI8242S0-DSSR,NSI8240BW1-DSWR,NSI824XW-DSWWR,NSI8240BW0-DSWR,NSI8240W1-DSWWR,NSI8241S1-DSSR,NSI824X-DSSR,NSI8242BW0-DSWR,NSI8240W0-DSWR,NSI8242W0-DSWR,NSI824X-DSWXR,NSI8241N0-DSPNR,NSI(82)(4)(1)(B)(W)(1)-DSWR,NSI8242W1-DSWWR,NSI8241B

数据手册 - 纳芯微电子 - Revision 1.4 - 2022/9/7 PDF 英文下载

NSi824x High Reliability Reinforced Quad-Channel Digital Isolators Datasheet

型号- NSI8242W1-DSWR,NSI8240W0-DSWWR,NSI8241X0,NSI8241W1-DSWR,NSI8241X1,NSI8240N0-DSPNR,NSI8240,NSI8241N1-DSPNR,NSI8241,NSI8242,NSI8241BW1-DSWR,NSI824XN-DSPNR,NSI824XB,NSI8242W0-DSWWR,NSI8242B,NSI824XW-DSWWR,NSI824XW-DSWR,NSI8240S1-DSSR,NSI824X,NSI8241W0-DSWR,NSI8242S1-DSSR,NSI8241BW0-DSWR,NSI8242N0-DSPNR,NSI(82)(4)(1)(W)(1)-DSWR,NSI8241W1-DSWWR,NSI8240W1-DSWR,NSI8240X0,NSI8240X1,NSI8242BW1-DSWR,NSI824XS-DSSR,NSI8241W0-DSWWR,NSI8242X0,NSI8242X1,NSI8241S0-DSSR,NSI8240S0-DSSR,NSI8242S0-DSSR,NSI8240N1-DSPNR,NSI8242N1-DSPNR,NSI8240BW1-DSWR,NSI8240BW0-DSWR,NSI8240W1-DSWWR,NSI8241S1-DSSR,NSI8242BW0-DSWR,NSI8240W0-DSWR,NSI8242W0-DSWR,NSI8241N0-DSPNR,NSI8242W1-DSWWR,4NSI8240B,NSI8241B

数据手册 - 纳芯微电子 - Revision: 1.4 - 2022/4/25 PDF 英文下载

NSI824x High Reliability Reinforced Quad-Channel Digital Isolators Data sheet

型号- NSI824XW-DSWR,NSI8240,NSI8241,NSI824X,NSI8242,NSI824XW-DSWWR

数据手册 - 纳芯微电子 - Rev1.1 - 2020/12/20 PDF 英文下载收起

【选型】国产双通道数字隔离器NSI8121N1Q与ADI的ADUM1201ARZ-RL7参数性能对比分析

为了防止各模块之间因为压差及电流差值过大造成相互影响，一般通信接口会使用隔离器件进行信号电平转换。隔离方式会有容隔、磁隔及光隔。现介绍一款纳芯微电子的双通道数字隔离器NSI8121N1Q，其功能与ADI的磁性隔离芯片ADUM1201ARZ-RL7较相似。

器件选型发布时间 : 2022-01-18

NSIP8840/NSIP8841/NSIP8842/NSIP8843/NSIP8844 Quad-Channel Digital Isolators with Integrated DC to DC Converter Datasheet

型号- NSIP8841W0-DSWR,NSIP8842W0-DSWR,NSIP8840W0-DSWR,NSIP8843W0-DSWR,NSIP8844W0-DSWR,NSIP8843W1,NSIP8844W0,NSIP8842W1,NSIP8843W0,NSIP8844W1,NSIP8840W0,NSIP8841W1,NSIP8842W0,NSIP8840W1,NSIP8841W0,NSIP8842W1-DSWR,NSIP8843W1-DSWR,NSIP884X,NSIP8841W1-DSWR,NSIP8844W1-DSWR,NSIP884X-DSWR,NSIP8844,NSIP8840W1-DSWR,NSIP8840,NSIP8841,NSIP8842,NSIP8843

数据手册 - 纳芯微电子 - Revision 1.2 - 2023/11/21 PDF 英文下载查看更多版本