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Product Information

Highlights

• 625nA resolution (25600 levels)
• 860 samples per second
• Measurement of up to 4 sensors per module
• Up to 4 modules simultaneously, adding up 16 sensors
• RC Filter in every channel

Description

The ADC 4-20 Nanoshield offers a solution for applications in which it is necessary to measure sensors with 4mA to 20mA output with high precision and resolution.

There is a large number of sensors with output ranging from 4mA to 20mA available on the market (they are commonly called transmitters). The most common ones are the pressure sensor, the temperature sensor, the humidity sensor, among others. Sensors with output ranging from 4mA to 20mA are largely used in industrial processes. Some advantages that arise with the usage of theses sensors are:

• There are no significant losses on the wiring, enabling the connection of only one pair of wires with long length.
• Robust signal transmission, with high immunity to noise.
• Possibility of detection of flaws on the wiring.

Implemented with the ADS1115 IC, the ADC 4-20 Nanoshield provides 25600 measuring points on the scale of 4mA to 20mA, with resolution of 625nA (0,000000625A). Optionally, the module can also be used for measuring sensors with output of 0 to 20mA (the maximum recommended current is 30mA).