AD7376

Rev. D | Page 15 of 20

LAYOUT AND POWER SUPPLY BIASING

It is a good practice to employ a compact, minimum lead-length

layout design. The leads to the input should be as direct as

possible, with a minimum conductor length. Ground paths

should have low resistance and low inductance.

Similarly, it is also good practice to bypass the power supplies

with quality capacitors. Low ESR (equivalent series resistance)

1 μF to 10 μF tantalum or electrolytic capacitors should be

applied at the supplies to minimize transient disturbances and

filter low frequency ripple. Figure 31 illustrates the basic supply

bypassing configuration for the AD7376.

The ground pin of the AD7376 is a digital ground reference. To

minimize the digital ground bounce, the AD7376 digital ground

terminal should be joined remotely to the analog ground (see

Figure 31).

GND

C3

AD7376

C4

C1

+

+

C2

10µF

10µF

0.1µF

0.1µF

Figure 31. Power Supply Bypassing