Datasheet

20
ADC081S021
SNAS308G –APRIL 2005–REVISED MAY 2016 www.ti.com
Product Folder Links: ADC081S021
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Layout Guidelines (continued)
TI recommends the use of a single, uniform ground plane and the use of split power planes. The power planes
must be placed within the same board layer. All analog circuitry (input amplifiers, filters, reference components,
and so on) must be placed over the analog power plane. All digital circuitry and I/O lines must be placed over the
digital power plane. In addition, all components in the reference circuitry and the input signal chain that are
connected to ground must be connected together with short traces and enter the analog ground plane at a
single, quiet point.
11.2 Layout Example
Figure 27. DBV Package Layout
Figure 28. NGF Package Layout