The AD790A bias current is 2.5(Typ)/5(Max) according to the data sheet.I suppose the AD790A bias current flows into the device as with any simple NPN differential input stage. Is that right?
Thank you very mach for your quick reply.
I understand that + mark means the bias current flows into and
- mark means the bias current flows out of the device in your datasheets
which means the AD790 bias current flows into.
And we have received a question of AD790 bias current direction from our customer.
They says that the AD790 bias current flows out of the device in their system.
So I posted the thread.
We must reply to customer questions, so I asked here about it.
I think there is no special meaning.