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INA849 데이터시트(PDF) 32 Page - Texas Instruments

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부품명 INA849
상세설명  PGA855 Low-Noise, Wide-Bandwidth, Fully Differential Output Programmable-Gain Instrumentation Amplifier
PDF  42 Pages
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제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI - Texas Instruments

INA849 데이터시트(HTML) 32 Page - Texas Instruments

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9.4.2 Layout Example
GND
GND
GND
IN–
4
IN+
1
2
3
FDA_IN+
OUT–
OUT+
9
FDA_IN–
12
11
10
PAD
R2
GND
VIN+
R1
GND
C4
C2
C7
C6
VOCM
ADC_INP
ADC_INN
Use ground pours for
shielding the input
signal pairs
Place bypass
capacitors as close to
IC as possible
R3
R4
C10
Consider utilizing
thermal vias for
heatsinking
Cutouts on ground
planes underneath
input pins can reduce
stray capacitance, for
better phase margin
C8
C9
GND
VIN+
VIN
VS+
R2
R1
C2
C5
PGA855
ADC
C6
C7
INP
INN
C10
R3
R4
OUT+
OUT
VCM
C9
C8
Connect feedback
capacitors between
OUTx and FDA_INx
(optional)
A<2:0>
DGND
VIN
A2
A0
C1
GND
LVSS
VS
C3
C5
VS+
LVDD
Optional noise filtering
capacitors
LVDD
C4
C1
LVSS
VS
C3
Figure 9-12. Example Schematic and Associated PCB Layout
PGA855
SBOSAE0B – APRIL 2023 – REVISED SEPTEMBER 2023
www.ti.com
32
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Copyright © 2023 Texas Instruments Incorporated
Product Folder Links: PGA855



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