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INA181 Datasheet(PDF) 6 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) 6 Page - Texas Instruments

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Table 5-2. Pin Functions: INA2181 (Dual Channel) and INA4181 (Quad Channel) (continued)
PIN
TYPE
DESCRIPTION
NAME
INA2181
INA4181
IN+3
—
15
Analog input
Current-sense amplifier positive input for Channel 3. For high-side
applications, connect to bus-voltage side of Channel 3 sense resistor. For
low-side applications, connect to load side of Channel 3 sense resistor.
IN–4
—
18
Analog input
Current-sense amplifier negative input for Channel 4. For high-side
applications, connect to load side of Channel 4 sense resistor. For low-side
applications, connect to ground side of Channel 4 sense resistor.
IN+4
—
17
Analog input
Current-sense amplifier positive input for Channel 4. For high-side
applications, connect to bus-voltage side of Channel 4 sense resistor. For
low-side applications, connect to load side of Channel 4 sense resistor.
NC
—
10, 11
—
NC denotes no internal connection. These pins can be left floating or
connected to any voltage between VS and ground.
OUT1
1
2
Analog output
Channel 1 output voltage
OUT2
9
8
Analog output
Channel 2 output voltage
OUT3
—
13
Analog output
Channel 3 output voltage
OUT4
—
19
Analog output
Channel 4 output voltage
REF1
5
1
Analog input
Channel 1 reference voltage, 0 to VS
REF2
6
9
Analog input
Channel 2 reference voltage, 0 to VS
REF3
—
12
Analog input
Channel 3 reference voltage, 0 to VS
REF4
—
20
Analog input
Channel 4 reference voltage, 0 to VS
VS
10
5
Analog
Power supply pin, 2.7 V to 5.5 V
INA181, INA2181, INA4181
SBOS793H – APRIL 2017 – REVISED NOVEMBER 2023
www.ti.com
6
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Copyright © 2023 Texas Instruments Incorporated
Product Folder Links: INA181 INA2181 INA4181



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