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AMC131M02 Datasheet(PDF) 81 Page - Texas Instruments

Part # AMC131M02
Description  AMC131M02 2-Channel, 64-kSPS, Simultaneous-Sampling, 24-Bit, Reinforced Isolated Delta-Sigma ADC With Integrated DC/DC Converter
PDF  89 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

AMC131M02 Datasheet(HTML) 81 Page - Texas Instruments

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9.4.2 Layout Example
Figure 9-9 shows an example layout of the AMC131M02 requiring a minimum of two PCB layers. In general,
analog and digital signals for the primary (low) side are partitioned to the right and analog and digital signals for
the secondary (high) side are on the left.
3: HLDO_IN
5: HGND
7: AIN1N
8: AIN1P
9: AIN0P
+3.3 V
TI Device
+3.3 V
Via to corresponding
voltage plane or pour
Via
Differential RC-filter
per channel.
Terminate long digital
input lines with resistors to
prevent reflection.
Channel 1
Channel 0
20: DIN
19: CS
18: SCLK
17: CLKIN
16: DRDY
14: DCDC_CAP
Clearance area, to be
kept free of any conductive
material.
4: HLDO_OUT
2: DCDC_HGND
1: DCDC_OUT
10: AIN0N
Place bypass
capacitor directly
across ADC inputs.
GPO
6: GPO
15: DGND
Place DCDC_CAP and power
supply decoupling capacitors close
to pins.
Place smaller decoupling
caps closest to the
device.
Place smaller decoupling
caps closest to the
device.
13: DVDD
12: DOUT
11: SYNC/RST
Top Metal
Inner or Bottom
Layer Metal
C1
Keep layout of
shunt connections
symmetrical.
Use separate trace for HGND
connection to shunt terminal.
C6
C11
C13
C10
C24
F2
F1
C8
R6
R7
R8
R9
C9
C17
C15
C16
GND
GND
ISO_GND
ISO_GND
Place ferrites
Close to the device
to improve EMI
performance.
Figure 9-9. Layout Example
www.ti.com
AMC131M02
SBASA56 – SEPTEMBER 2023
Copyright © 2023 Texas Instruments Incorporated
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Product Folder Links: AMC131M02



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