8.5 Layout

8.5.1 Layout Guidelines

Figure 8-6 shows a layout recommendation with the critical placement of the decoupling capacitors (as close as

possible to the AMC3311 supply pins) and placement of the other components required by the device. For best

performance, place the sense resistor close to the device input pin (IN).

This layout is used on the AMC3311 EVM and supports CISPR-11 compliant electromagnetic radiation levels.

8.5.2 Layout Example

AMC3311

Clearance area, to be

kept free of any

conductive materials.

To MCU I/O (optional)

GND

IN

3.3-V or 5-V supply

HGND

VDD

DIAG

Top Metal

Inner or Bottom Layer Metal

Via

OUTP

OUTN

To analog filter / ADC / MCU

To analog filter / ADC / MCU

C3

C2

C1

C5

C6

FB2

FB1

DC +

DC –

Figure 8-6. Recommended Layout of the AMC3311

AMC3311

SBASAQ5A – JUNE 2023 – REVISED AUGUST 2023

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