Sunday 13 March 2016

current source - What does a two overlapping circles symbol mean in an electrical schematic/diagram?


In the datasheet for a A3503 Hall Effect Sensor, I saw a circuit diagram labeled 'Functional Block Diagram', and it shows a symbol I have not seen before. It's shown here between 3 - Output and 2 - Ground.


What is this supposed to represent?


A3503 Block Diargam


The full datasheet is available here



Answer



It's the symbol of a current source.


There are different symbols used to represent a current source:



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