Two-wire and passive analog signal current loop 10KV high isolation safety barrier
Product Category: Two-wire 4-20mA Loop Small Size Low Cost Signal Converter Transmitter
Input: 4-20mA,0-20mA Output: 4-20mA,0-20mA
Isolation Mode: Magneto-electric Isolation Voltage: 10000VAC
Package: SIP16 Traffic Watch: times
Remarks: 4-20mA(0-20mA) Two-wire and passive current loop high isolation IC: ISOH 4-20mA series
Product Description
Product features:
●Unique high-efficiency signal loop technology of power supply from coupling,without an external source of power.
●10KVAC high voltage isolation technology for signal input/output loops at both of ends
● 4-20mA(0.1、0.2grade)signal high precision undistorted transmission technology
●Extremely high linearity in the 4-20mA full range, nonlinearity error <0.2%
●4-20mA loop power supply ultra-wide range voltage input (8.5~32VDC)
●The loop signal takes a lower voltage drop (3.5VDC / Type @20mA)
● Industrial grade enviroment temperature range: -40 ~ +85 °C
●Small size standard single column SIP 16Pin accord with UL94V-0 flame retardant package

Typical application:
●4-20ma current loop signal high voltage isolation safety barrier 
●Power instrumentation, medical equipment monitoring isolation safety barrier
●Rail transit DC high voltage monitoring isolation safety barrier
●Signal acquisition isolation and anti-interference between PLC and DCS input channels
● Ground loop interference suppression for power transmission and distribution control system
●Multi-channel instrumentation and sensor signal reliable transmission and reception monitoring
●Analog signal data acquisition isolation and long line undistorted transmission
● High isolation between the electric load and power management instrument bus interface


SunYuan ISOH 4-20mA is our the newest developed two-wire passive 4-20mA current loop isolation module in industry circles with the highest isolation voltage (10KVAC) and small size (16-pin single-in-line SIP16 Pin) &low-cost. This new product is a passive analog signal isolation hybrid integrated circuit of front-end 4-20mA current signal input and back-end 4-20mA output, IC internal including the current signal modulation and demodulation circuit, signal coupling isolation conversion circuit, etc. . This new product adopts the unique Sunyuan technology magnetic-electric coupling isolation and high-efficiency loop power take-off invention technology, which effectively solves the problem of dependence of the signal isolation circuit on the power supply during operation, and can realize high-precision, high-linearity 10KV anti-EMS high-isolation transmission of 4-20mA (0-20mA) signal between the industrial field sensors & instrumentation, PLC &DCS. The 16pin SIP small size (46X22X12mm) standard PCB mounting design can be embedded in the instrument panel, sensor, PLC and other operation control boards, which simplifies the user system design choice and reduces the volume and wiring cost.
ISOH 4-20mA adopts Sunyuan's unique electromagnetic isolation coupling technology, which does not require independent power supply and has a small input equivalent resistance inside, which makes the input voltage of the IC reach an ultra-wide range (8.5~32VDC). The technical products can be directly connected in the two-wire 4-20mA or 0-20mA working circuit of industrial field PLC, instrumentation and sensor, physical transmitter and other devices, and can achieve 4-20mA signal anti-interference isolation, long-distance distortion-free transmission without external auxiliary power supply.. The integrated process and new technology isolation measures inside the product enable the input and output ports of the device to achieve a high isolation insulation voltage of 10KVAC and can meet the harsh environment requirements such as wide temperature, humidity and vibration in the industrial field. The products are IC module package and DIN35 Rail-mounted packaging, It is widely used in track voltage monitoring, generator or motor safe operation monitoring, power transmission and distribution remote monitoring, instrumentation and sensor signal transmission and reception, medical quipment safety barrier, industrial intelligent control, nuclear power equipment and other fields.

Detailed technical information:

Dimensions and pin definitions:
Typical application:

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