Hi Phil.
My mistake: I forgot about differential gain. So you are right: we get Acm= 20uV/V when AD8475 configured to 0.4 gain. But what about value of input CM voltage reffered to AD8475 in my example above: I think it is 2.5V not 5V cause AD8475 in…
Hi, engineers.
I have one problem. When I simulated schematics with AD8475, on out i get voltage 2.5kV. I think spice-model AD8475 aren't correct. Are you can check this spice-model?
AD8475
AD8475的spice模型有问题，无法导入TINA-TI中进行仿真计算
Doesn't anybody know about this AD8475?
Hi Idan,
Can you tell me what are you trying to do? Do you want to import the AD8475 on the specific simulation tool or platform? What simulation tool are you using? I believe the AD8475 should be available in Multisim and Simetrix.
Best regards,
推荐一个神奇的芯片AD8475
Hi Jebas,
Thank you for question. Theoretically, the idea of using external resistors to adjust the gain of AD8475 should work. However, the internal resistors are laser trimmed to have the specified ratios, but the absolute values of these resistors…
Hi, in the datasheet of AD8475, it says that the voltage supply can be +-5V and +VS can be connected to 5V while -Vs can be connected to -5V or AGND. However, during simulation, it reports an error of singular matrix when connect -VS to -5V. Moreover…
Hello jpearson,mle,
Thank you for the detailed explanation. AD8475 will also check.
Thank you,again.
Regards,Kou
北京，丰台科技园，我做ATE，关注AD7982、AD7984、AD8275、AD8475