I have some problems for designing a circuit based on AD9218. This is my first time to learn this IC, and make PCB layout by myself.
The datasheet of AD9218 shows that pins 13,30,31,48 are the same pin for Analog Supply (Vd), but they aren't…
I m designing a new circuit based on AD9218 ADC and BF537 via PPI interface.
I have some questions about the ADC Vref and input range.
Firstly, i wonder what is the effect of Vref to the input voltage range. My target is sampling 0V to 2V voltage…
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
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…
1. Yes, the AD9218 can operate with a stable Vd supply ranging between 2.7V to 3.6V (3.0V nominal) as noted in the Power Supply specifications Table 1 on datasheet page 3.
2. We do not differentiate between Analog and/or Digital Ground…
I attached our ADC daughter board's schematic design.
How to understand "This is a 10V part with a 2V input range, so an LSB is going to be ~2mV."? I remmenber AD9218's input range is 1V p-p.
You can find that we used…
AD9218 为双路ADC 最高到105MSPS,双路AD可以同时独立工作，功耗也低，是2001年左右的产品，现在有没有对应的升级产品 要求一下几点