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INA181 Datasheet(PDF) 5 Page - Texas Instruments

Part # INA181
Description  INAx181 Bidirectional, Low- and High-Side Voltage Output, Current-Sense Amplifiers
PDF  62 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

INA181 Datasheet(HTML) 5 Page - Texas Instruments

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1
OUT1
10
VS
2
IN±1
9
OUT2
3
IN+1
8
IN±2
4
GND
7
IN+2
5
REF1
6
REF2
Not to scale
Figure 5-3. INA2181: DGS Package 10-Pin VSSOP
Top View
1
OUT1
10
VS
2
IN±1
9
OUT2
3
IN+1
8
IN±2
4
GND
7
IN+2
5
REF1
6
REF2
Not to scale
Thermal
Pad
A.
Thermal Pad can be left floating or connected to GND.
Figure 5-4. INA2181: DSQ Package 10-Pin WSON
Top View
1
REF1
20
REF4
2
OUT1
19
OUT4
3
IN±1
18
IN±4
4
IN+1
17
IN+4
5
VS
16
GND
6
IN+2
15
IN+3
7
IN±2
14
IN±3
8
OUT2
13
OUT3
9
REF2
12
REF3
10
NC
11
NC
Not to scale
Figure 5-5. INA4181: PW Package 20-Pin TSSOP Top View
Table 5-2. Pin Functions: INA2181 (Dual Channel) and INA4181 (Quad Channel)
PIN
TYPE
DESCRIPTION
NAME
INA2181
INA4181
GND
4
16
Analog
Ground
IN–1
2
3
Analog input
Current-sense amplifier negative input for Channel 1. For high-side
applications, connect to load side of Channel 1 sense resistor. For low-side
applications, connect to ground side of Channel 1 sense resistor.
IN+1
3
4
Analog input
Current-sense amplifier positive input for Channel 1. For high-side
applications, connect to bus-voltage side of Channel 1 sense resistor. For
low-side applications, connect to load side of Channel 1 sense resistor.
IN–2
8
7
Analog input
Current-sense amplifier negative input for Channel 2. For high-side
applications, connect to load side of Channel 2 sense resistor. For low-side
applications, connect to ground side of Channel 2 sense resistor.
IN+2
7
6
Analog input
Current-sense amplifier positive input for Channel 2. For high-side
applications, connect to bus-voltage side of Channel 2 sense resistor. For
low-side applications, connect to load side of Channel 2 sense resistor.
IN–3
—
14
Analog input
Current-sense amplifier negative input for Channel 3. For high-side
applications, connect to load side of Channel 3 sense resistor. For low-side
applications, connect to ground side of Channel 3 sense resistor.
www.ti.com
INA181, INA2181, INA4181
SBOS793H – APRIL 2017 – REVISED NOVEMBER 2023
Copyright © 2023 Texas Instruments Incorporated
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5
Product Folder Links: INA181 INA2181 INA4181



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