AMC1306E05_017 Datasheet, PDF (33/38 Pages) Texas Instruments – Small, High-Precision, Reinforced Isolated Delta-Sigma Modulators with High CMTI

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11 Layout
AMC1306E05, AMC1306E25, AMC1306M05, AMC1306M25
SBAS734A – MARCH 2017 – REVISED JULY 2017
11.1 Layout Guidelines
A layout recommendation showing the critical placement of the decoupling capacitors (as close as possible to the
AMC1306) and placement of the other components required by the device is shown in Figure 62. For best
performance, place the shunt resistor close to the VINP and VINN inputs of the AMC1306 and keep the layout of
both connections symmetrical.
11.2 Layout Example
Clearance area,
to be kept free of any
conductive materials.
2.2 µF 0.1 µF
SMD SMD
To Floating 0603 0603
Power
AVDD
1
Supply
8
DVDD
0.1 µF 2.2 µF
SMD SMD
0603 0603
AINP
AINN
AMC1306x
CLKIN
DOUT
From Clock
Source
To Digital
Filter
(MCU)
AGND
DGND
LEGEND
Copper Pour and Traces
High-Side Area
Controller-Side Area
Via to Ground Plane
Via to Supply Plane
Copyright © 2017, Texas Instruments Incorporated
Figure 62. Recommended Layout of the AMC1306x
Copyright © 2017, Texas Instruments Incorporated
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Product Folder Links: AMC1306E05 AMC1306E25 AMC1306M05 AMC1306M25