Passive low-cost two-wire 4-20mA current to analog voltage signal I/V conversion signal isolator

Publisher:DazzlingSmileLatest update time:2023-09-05 Source: elecfansKeywords:Passive Reading articles on mobile phones Scan QR code
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ISO 4-20mA-O series (SIP12 Pin package) two-wire passive 4-20mA to voltage signal isolation converter can isolate the input active 4-20mA current signal and convert it into a voltage signal I/V conversion output. This solution adopts a two-wire input loop power supply method and a unique high-efficiency signal loop power stealing technology. It does not require an external working power supply, which greatly simplifies the user's design and reduces the user's wiring cost. The module contains current signal modulation and demodulation circuits, signal coupling isolation conversion circuits, power inverter circuits, subtraction circuits, buffer processing output circuits, etc. The very small input equivalent resistance enables the product to collect current signals from the sensor signal output circuit and achieve a voltage drop of ≤10V when the input 20mA signal is input. This meets the user's needs for long-distance, distortion-free signal transmission and conversion without an external auxiliary power supply.


Keywords:Passive Reference address:Passive low-cost two-wire 4-20mA current to analog voltage signal I/V conversion signal isolator

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