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ad8211 GNDconnection

Question asked by jeh2017 on Jan 10, 2017
Latest reply on Jun 27, 2017 by Emman.A

Where is mistake?

20 ohm Resistor between v+  and shunt or  between V-  and shunt could be damaged.

We are checking motor drive current by AD8211. Motor VCC  24V and GND (GND_Motor) is filtteres (Emifilter)

AD8211: V+ is connected 5V_CTRL (using cap 100nF / GND CTRL ) AD8211 GND is connected GND_CTRL.

Shunt resistor is 0.01ohm. Between Vin+ and Vin- line is Cap 1uF serial resitor foe both Vin+ and Vin- are 20ohm .

 

 

could GND of AD8211 be connected to the GND_Motor or GND_CTRL?

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