Part Number:INA213
In reply to Patrick Simmons:
Hi Patrick:
Sorry I dropped off, I got distracted by another issue.
I need to do a respin of this board to address some other issues and so I need to make a decision on this part. As the board is operating on my bench now, I am observing the following.
Circuit current as measured with a clamp meter: 4.41A
Voltage across 0.002 ohm resistor: 0.00895v (0.00895 / 0.002 = 4.475A)
Output voltage of INA213: 0.529v (It should be 0.00895 * 50 = 0.4475v)
Common Mode voltage: 15.4v
So, the output voltage error is currently ( (529-447) / 447 ) * 100 = 18.2%
The circuit is properly laid out and routed with the current sense resistor located directly next to the part pins 4 and 5 with symmetrically routed leads of equal / matched length to the pins. I will try to attach the gerbers of the layer it is on(Please visit the site to view this file)
