Do we need to take any special care when doing the pcb layout for hall effect sensors
I am making a breakout board which contains 4 hall effect sensors from paragraf.The sensor P/N is EGHSX03Q02 .My schematic is given below .Like this 4 sensors placed in the pcb.
These sensors are used for mapping field of a pouch cell.The output of these sensors will be connected to Paragraf Mist box.This is their measurement system.
From the sensor cable assembly will go to a DB9 connector and this DB9 connector will be attached to Mist Box.
I am using a 2 layer pcb with signal lines are routed in the top layer.The bottom layer and unused areas are poured with GND plane.My layout is given below.
May I know is this fine or not.Please share your thoughts.
1 answer
The following users marked this post as Works for me:
| User | Comment | Date |
|---|---|---|
| newbie | (no comment) | Jul 10, 2025 at 14:10 |
What you have is probably OK. The datasheet for the Hall sensor you linked to doesn't say anything about the signals being unusually sensitive. The only thing it mentions relevant to this issue is that the internal impedance is 8 kΩ max. That's not particularly high.
I'd be more worried about the effects of cryogenic temperatures if that's where you intend to use these devices (it seems that's what these devices are intended for). That includes carefully considering how thermocouple effects are cancelled, that material can take the temperatures, differential coefficients of expansion, etc. You might want to take readings at opposite excitation currents, for example, and use that to cancel out some effects.
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