I'm trying to BIAS the inputs on the AD8233CB-EBZ eval board to +VS/2 using the REFOUT voltage. Jumpers P3, P6, P7, P8, and P9 are installed. The REFOUT is at 0.8V and not 1.6V as expected since the +VS = 3.2V. What could be loading the REFOUT buffer? The datasheet says it can source 12 mA.
Hi,Can you try measuring Refout when P3 is not installed.What are the conditions of the other pins on the board?Regards,Goz