CED1Z AD [Analog Devices], CED1Z Datasheet - Page 33

• Manufacturer Part Number: CED1Z
• Description: 8-/6-/4-Channel DAS with 16-Bit,Bipolar Input,Simultaneous Sampling ADC
• Manufacturer: AD [Analog Devices]

To ensure good device-to-device performance matching in
a system that contains multiple AD7606/AD7606-6/AD7606-4
devices, a symmetrical layout between the AD7606/AD7606-6/
AD7606-4 devices is important.
Figure 64 shows a layout with two AD7606/AD7606-6/AD7606-4
devices. The AV
and the V
The reference chip is positioned between the two devices, and
the reference voltage track runs north to Pin 42 of U1 and south
to Pin 42 of U2. A solid ground plane is used.
These symmetrical layout principles can also be applied to a system
that contains more than two AD7606/AD7606-6/AD7606-4
devices. The AD7606/AD7606-6/AD7606-4 devices can be placed
in a north-south direction, with the reference voltage located
midway between the devices and the reference track running in
the north-south direction, similar to Figure 64.
DRIVE
supply track runs to the left of the two devices.
CC
supply plane runs to the right of both devices,
Rev. 0 | Page 33 of 36
Figure 64. Layout for Multiple AD7606 Devices—Top Layer and
AD7606/AD7606-6/AD7606-4
Supply Plane Layer
U2
U2
U1
U1
AVCC
AVCC