FAQ
Hi,
I'm wondering about the timing requirements regarding the analog and digital supplies for the AD9218.
Can these supplies be initialized at different times? Must one come before the other if so?
Are there any effects of supplying two different…
Hi guys,
We are using many AD9218BSTZ-105 chips, which are used on ADC daughter boards. Now, we are testing those ADC daughter boards performances. One of the important specification is slope. Our question about slope is how to calculate (how to test…
在是用AD9218的时候,VD和VDD都是用的3.3V,两组电源同时上电没有问题,但是VD3.3V先上电,VDD3.3V后上电,反复几次就会烧掉AD9218(完全可以重现)。而datasheet上没有看到上电的问题,请问是需要两组电必须同时上电吗?
question
1.Can i set pin 13 30 31 48 Vd(analog suooly(3v))=3.3V?
2.Does the pin 1 12 16 27 29 32 34 45 GND have analog GND or digital GND?
have a new set of ADs AD9218 in an updated design.
the reference is measuring 1.31 V (outside the 1.25 V tolerance). pins 5,6,7 (reference and A & B) are all tied together. what could cause the reference to go out of tolerance