Description:
The DFRobot Gravity Analog Signal Isolator prevents electrical interference between sensors, particularly those like pH and conductivity sensors that can disrupt each other's readings. It features onboard 5V isolated power, eliminating the need for external power supplies, and uses plug-and-play connectors for DFRobot 3-pin analog sensors. With a 1:1 signal transmission ratio, it minimizes impact on sensor outputs and requires no code changes. Designed for applications like multi-parameter water quality monitoring, it's compatible with most DFRobot analog sensors. The module requires a stable 5V input, consumes significant current, and isolates the sensor and MCU grounds. Note that the isolator regenerates during operation.
Specifications:
- Operating Voltage: 5.0V
- Response Time: 4 seconds (Typ)
- Analog Error between Two Terminals: <± 20mV (Typ)
- Conector Type: PH2.0-3P
- No-load Current: 75mA
- Dimension: 42 * 32mm / 1.65 * 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
Features:
- Remove earth loop errors which are caused by noise & signal interference.
- Provide electrical (galvanic) isolation between the input and output circuits.
- Signal isolators can also be used to amplify signals
- Enable instruments to be added to an overburdened loop, or to step down dangerous, high-voltage signals to safer levels.
- Analog Error between Two Terminals: <± 20mV (Typ).
- 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.
Projects:
Project 1. How to use the DFRobot Signal Isolator module with an Arduino
Useful Links:
Package Included:
- 1 x Gravity: Analog Signal Isolator
- 2 x PH2.0-3P Cable