THS3470: DGND pin setting

Hi David,

I assume for your supplies you mean -60V for VEE. In this cause the choice can vary depending on your needs. You can set DGND to VEE for convenience, however your logic pins will refer to this DGND (-60V). You can also set this to your supply voltage midpoint of -30V if you have this bias available with the same understanding that now your logic pins will be referenced to -30V. The boundary for this pin is -12V from VCC and all the way to VEE, therefore -12V to -60V.

Best Regards,

Ignacio 

Hi Ignacio,

Thanks for your support.

When VCC:GND, VEE:-60V, what voltage can we expect at VDD?

Thanks.

Hi David,

We can expect VDD to be 5V above DGND so this depends on what DGND is set to.

Best regards,

Ignacio