AMC1303E0510 Datasheet, PDF (30/40 Pages) Texas Instruments – Small, High-Precision, Reinforced Isolated Delta-Sigma Modulators with Internal Clock

AMC1303E0510, AMC1303M0510, AMC1303E0520, AMC1303M0520
AMC1303E2510, AMC1303M2510, AMC1303E2520, AMC1303M2520
SBAS771 – JUNE 2017
11 Layout
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11.1 Layout Guidelines
Figure 53 shows a layout recommendation detailing the critical placement of the decoupling capacitors (as close
as possible to the AMC1303) and placement of the other components required by the device. For best
performance, place the shunt resistor and the antialiasing filter components as close as possible to the AINP and
AINN inputs of the AMC1303 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
16
DVDD
0.1 µF 2.2 µF
SMD SMD
0603 0603
RFLT
SMD
0603
RFLT
SMD
0603
CFLT
SMD
0603
AINP
AINN
AMC1303Mx
CLKOUT
DOUT
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
Note: no CLKOUT connection using AMC1303Ex,
pin 7 to be connected to DGND in this case
Copyright © 2017, Texas Instruments Incorporated
Figure 53. Recommended Layout of the AMC1303
30
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Copyright © 2017, Texas Instruments Incorporated
Product Folder Links: AMC1303E0510 AMC1303M0510 AMC1303E0520 AMC1303M0520 AMC1303E2510
AMC1303M2510 AMC1303E2520 AMC1303M2520