概览

4-20mA 电流环是工业领域传感器系统的主要标准是 因为它具有极为简单的配置和连接方式。另外，它也比其他传输信号使用更少的布线及接线，因此降低了系统总体成本。在大空间的应用场景中，它更适合远距离传输，因为电流不像电压那样容易衰减。

这一成功的组合展示了一种可行的发射器解决方案，包含我们的精密数字电源监视器（DPM）、稳定的电源﹑带有低功耗和模拟功能的16位RL78/I1D MCU

系统优势:

  • RL78/I1D 是一个具有超低功耗和丰富模拟功能的 MCU，适用于检测器和传感器应用
  • ISL80410 是高输入电压，可调输出电压低静态电流线性稳压器，是“始终在线”应用的理想选择
  • 基于瑞萨电子的 ISL21080 纳安功耗（典型电流 310nA）电压基准源的精密电压

成功产品组合交互框图

选择相应模块，寻找适合您设计的产品

4:3 ratio Sheet.1 Sheet.2 Sheet.3 Sheet.4 US199 US199 US199 Sensor with Analog Input Sensor with Analog Input Sensor with Analog Input Sensor Module with ADC Sensor Module with ADC Sensor Module with ADC Ground (earth) Sheet.22 Sheet.23 Sheet.24 Sheet.25 Sheet.115 Sheet.101 Sheet.102 Sheet.103 Sheet.104 Sheet.105 Sheet.106 Sheet.107 Sheet.108 Sheet.109 Sheet.110 Sheet.111 Sheet.112 Sheet.113 Sheet.114 Connector Arrow Connector Arrow.118 Connector Line Connector dotted line Connector Line.122 Connector double arrow Connector Line.124 Connector Line.125 Connector Line.126 Connector Line.127 Connector Line.128 Connector Line.129 Connector Line.130 Connector Line.131 Connector Line.132 Connector Line.134 Connector Line.135 Connector Line.137 Connector Line.138 Connector Line.139 Connector Line.140 Connector Line.141 Connector Line.142 Connector Line.143 Connector Line.144 Connector 1 Connector 1.146 Connector 1.147 Connector 1.148 Connector Line.150 Voltage Reference Voltage Reference Voltage Reference LDO LDO LDO Loop Input Protection Loop Input Protection Loop Input Protection Loop Power Loop Power Loop Power Op Amp Op Amp Op Amp RF Filter RF Filter RF Filter Resistor Resistor.20 Resistor.26 3.3V 3.3V 3.3V RL RL RL Up to 40V Up to 40V Up to 40V Total Resistance of Receiver and Transmission Line Total Resistance of Receiver and Transmission Line Total Resistance of Receiver and Transmission Line MCU MCU MCU MCU Op Amp/ADC Op Amp/ADC Op Amp/ADC I2C I2C I2C PWM PWM PWM

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RL78 低功耗 8 位和 16 位 MCU

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Voltage Reference
电压基准源

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线性稳压器 (LDO)

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精密运算放大器 (Vos <1mV)