The two outstanding PCB have come in from Dirty PCB, love those guys.
Just a little advice, pay for DHL. Fast...
Here is the latest board. Not quite ready to go out.
This is a 4 - Layer PCB for an ADS1299. This is also the challenge design for DIY Space Grade PCB. Build a matching Electrode Array to this pattern.
The hexagonal pattern is a key component of the design.
You'll see it over, and over, and over again. I love the hexagon!
If your curious, here's a schematic, sans the power page, but an exact copy of the TI notes.
Keep in mind that the board has not gone to press.
In a couple of days, perhaps tomorrow I'll be happy with the circuits I have wrought and will send it off. In about 10 days the DHL guy will hand me a package. Nice!!!
... Weeks later, Dirty PCB could not deliver boards with castellated edges. Bummer. Hand to switch to a new vendor who apparently will deliver, via DHL, my amplifier boards on 10/4/2016. Oh the irony!