Gravity: Analog Signal Isolation Module

1. Getting Started

This tutorial will use a conductivity sensor as an example to demonstrate how to connect this analog singal isolator in the circuit to electrically isolate the sensor. The conductivity sensor releases high-frequency electrical signals into the water. Therefore, if there are other water quality sensors in the same container, such as pH sensors, they will be seriously disturbed. Therefore, it is necessary to electrically isolate the conductivity sensor.

Parameter	Value
Operating Voltage	5.0V
Response Time	4 seconds (Typ)
Analog Error between Two Terminals	<± 20mV (Typ)
Connector Type	PH2.0-3P
No-load Current	75mA
Dimension	42 x 32mm / 1.65 x 1.26 inch
Non-isolation Terminal (MCU Terminal)
Supply Voltage	5.0 ± 0.1V
Analog Output	0 ~ 5.0V
Isolation Terminal (SEN Terminal)
Output Voltage	5.0 ± 0.2V
Analog Input	0 ~ 5.0V

Num	Label	Description
1	A	Analog Signal Output(0~5.0V)
2	+	Power Input VCC(5.0±0.1V)
3	-	Power Input GND
4	A	Isolation Power Output GND
5	-	Isolation Power Output VCC(5.0±0.2V)
6	A	Analog Signal Input(0~5.0V)

Gravity: Analog Signal Isolation Module

Specification

Pinout