SY 4-20mA-O series 2-wire passive type 4-20mA to voltage signal low-cost converter
SY 4-20mA-O is a low-cost, small-size, two-wire passive 4-20mA to voltage signal converter IC, which can convert active 4-20mA signals into voltage signal output. The IC adopts two-wire input loop power supply mode, unique high-efficiency signal loop power stealing technology, without external power supply, simplifying the user program design and reducing user wiring costs. The module contains current signal conversion circuit, power inverter circuit, subtraction circuit, buffer processing output circuit, etc.. The very small input equivalent resistance enables the IC to collect current signals from the sensor signal output loop and achieve a voltage drop of ≤6V when inputting a 20mA signal to meet the user's need for long-distance, distortion-free signal transmission and conversion without the need for an external auxiliary power supply.
