I want to detect when the floating tag is grounded, thus allowing current to flow through R1 (54mA). I have found the following hall effect sensor here
It comes in 4 varities:
TMCS1100A1: 50 mV/A
TMCS1100A2: 100 mV/A
TMCS1100A3: 200 mV/A
TMCS1100A4: 400 mV/A
I am not sure how to interpret this sensitivity for each variation. Can someone help me to understand how those sensitivity values work? and what output voltage will I get for 53mA?
Also if the output is too low can someone help me in finding a new current sensor, either shunt or hall effect?