Current Sense Amplifiers – Mouser Thailand

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INA281/INA281-Q1 Current Sense Amplifier

Texas Instruments INA281/INA281-Q1 Current Sense Amplifier can measure voltage drops across shunt resistors over a wide common-mode range from –4V to 110V. The negative common-mode voltage allows the device to operate below ground, thus accommodating precise measurement of recirculating currents in half-bridge applications. Combining a low offset voltage, small gain error, and high DC CMRR enables highly accurate current measurement. The Texas Instruments INA281/INA281-Q1 is not only designed for DC current measurement but also high-speed applications (like fast over current protection, for example) with a high bandwidth of 1.3MHz and a 65dB AC CMRR (at 50kHz).

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Part #

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B1IDBVR

INA281B1IDBVT
Texas Instruments
1: ฿95.93
18,409In Stock

Mfr. Part No.
INA281B1IDBVT

Mouser Part No
595-INA281B1IDBVT

Texas Instruments

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B1IDBVR

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Datasheet

18,409In Stock

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INA281

1 Channel

1.3 MHz

48 V

140 dB

20 uA

100 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

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Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

INA281B4QDBVRQ1
Texas Instruments
1: ฿103.68
4,157In Stock

Mfr. Part No.
INA281B4QDBVRQ1

Mouser Part No
595-INA281B4QDBVRQ1

Texas Instruments

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

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Datasheet

4,157In Stock

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INA281

1 Channel

900 kHz

48 V

140 dB

20 uA

30 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-3-5

AEC-Q100

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Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

INA281A3QDBVRQ1
Texas Instruments
1: ฿103.68
5,176In Stock

Mfr. Part No.
INA281A3QDBVRQ1

Mouser Part No
595-INA281A3QDBVRQ1

Texas Instruments

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

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Datasheet

5,176In Stock

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INA281

1 Channel

1 MHz

48 V

140 dB

20 uA

30 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-3-5

AEC-Q100

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Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

INA281A4QDBVRQ1
Texas Instruments
1: ฿103.68
3,178In Stock

Mfr. Part No.
INA281A4QDBVRQ1

Mouser Part No
595-INA281A4QDBVRQ1

Texas Instruments

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

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Datasheet

3,178In Stock

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INA281

1 Channel

900 kHz

48 V

140 dB

20 uA

30 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-3-5

AEC-Q100

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Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

INA281A5QDBVRQ1
Texas Instruments
1: ฿103.68
1,708In Stock

Mfr. Part No.
INA281A5QDBVRQ1

Mouser Part No
595-INA281A5QDBVRQ1

Texas Instruments

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

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Datasheet

1,708In Stock

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฿77.84

฿71.38

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INA281

1 Channel

900 kHz

48 V

140 dB

20 uA

15 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-3-5

AEC-Q100

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Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A2IDBVR

INA281A2IDBVT
Texas Instruments
1: ฿95.93
711In Stock

Mfr. Part No.
INA281A2IDBVT

Mouser Part No
595-INA281A2IDBVT

Texas Instruments

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A2IDBVR

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Datasheet

711In Stock

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฿72.03

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INA281

1 Channel

1.3 MHz

48 V

140 dB

20 uA

55 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

INA281B5QDBVRQ1
Texas Instruments
1: ฿103.68
2,716In Stock

Mfr. Part No.
INA281B5QDBVRQ1

Mouser Part No
595-INA281B5QDBVRQ1

Texas Instruments

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

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Datasheet

2,716In Stock

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INA281

1 Channel

900 kHz

48 V

140 dB

20 uA

15 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-3-5

AEC-Q100

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Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A2IDBVT

INA281A2IDBVR
Texas Instruments
1: ฿71.06
1,865In Stock
6,000Expected 11/19/2026

Mfr. Part No.
INA281A2IDBVR

Mouser Part No
595-INA281A2IDBVR

Texas Instruments

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A2IDBVT

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Datasheet

1,865In Stock

6,000Expected 11/19/2026

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฿71.06

฿52.65

฿48.13

฿42.96

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INA281

1 Channel

1.3 MHz

48 V

120 dB

20 uA

55 uV

20 V

2.7 V

1.5 mA

0.5 %

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A4IDBVT

INA281A4IDBVR
Texas Instruments
1: ฿72.03
2,815In Stock

Mfr. Part No.
INA281A4IDBVR

Mouser Part No
595-INA281A4IDBVR

Texas Instruments

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A4IDBVT

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Datasheet

2,815In Stock

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INA281

1 Channel

900 kHz

48 V

120 dB

20 uA

30 uV

20 V

2.7 V

1.5 mA

0.5 %

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A5IDBVT

INA281A5IDBVR
Texas Instruments
1: ฿73.32
2,739In Stock

Mfr. Part No.
INA281A5IDBVR

Mouser Part No
595-INA281A5IDBVR

Texas Instruments

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A5IDBVT

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Datasheet

2,739In Stock

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฿54.26

฿49.42

฿44.25

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฿35.85

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: 3,000

INA281

1 Channel

900 kHz

48 V

120 dB

20 uA

15 uV

20 V

2.7 V

1.5 mA

0.5 %

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B1IDBVT

INA281B1IDBVR
Texas Instruments
1: ฿80.43
2,139In Stock

Mfr. Part No.
INA281B1IDBVR

Mouser Part No
595-INA281B1IDBVR

Texas Instruments

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B1IDBVT

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Datasheet

2,139In Stock

Cut Tape

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฿59.76

฿54.59

฿49.10

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฿41.34

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INA281

1 Channel

1.3 MHz

48 V

120 dB

20 uA

100 uV

20 V

2.7 V

1.5 mA

0.5 %

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

INA281B1QDBVRQ1
Texas Instruments
1: ฿103.68
7,738In Stock

Mfr. Part No.
INA281B1QDBVRQ1

Mouser Part No
595-INA281B1QDBVRQ1

Texas Instruments

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

Learn More

Datasheet

7,738In Stock

Cut Tape

฿103.68

฿77.84

฿71.38

฿64.28

Reel

฿54.59

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Min.: 1
Mult.: 1

: 3,000

INA281

1 Channel

1.3 MHz

48 V

140 dB

20 uA

100 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-3-5

AEC-Q100

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Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B2IDBVT

INA281B2IDBVR
Texas Instruments
1: ฿71.06
3,008In Stock

Mfr. Part No.
INA281B2IDBVR

Mouser Part No
595-INA281B2IDBVR

Texas Instruments

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B2IDBVT

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Datasheet

3,008In Stock

Cut Tape

฿71.06

฿52.65

฿48.13

฿42.96

Reel

฿35.85

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

INA281

1 Channel

1.3 MHz

48 V

120 dB

20 uA

55 uV

20 V

2.7 V

1.5 mA

0.5 %

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B3IDBVT

INA281B3IDBVR
Texas Instruments
1: ฿71.06
2,304In Stock

Mfr. Part No.
INA281B3IDBVR

Mouser Part No
595-INA281B3IDBVR

Texas Instruments

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B3IDBVT

Learn More

Datasheet

2,304In Stock

Cut Tape

฿71.06

฿52.65

฿48.13

฿42.96

Reel

฿35.85

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Min.: 1
Mult.: 1

: 3,000

INA281

1 Channel

1 MHz

48 V

120 dB

20 uA

30 uV

20 V

2.7 V

1.5 mA

0.5 %

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

INA281A1QDBVRQ1
Texas Instruments
1: ฿103.68
6,253In Stock

Mfr. Part No.
INA281A1QDBVRQ1

Mouser Part No
595-INA281A1QDBVRQ1

Texas Instruments

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

Learn More

Datasheet

6,253In Stock

Cut Tape

฿103.68

฿77.84

฿71.38

฿64.28

Reel

฿54.59

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

INA281

1 Channel

1.3 MHz

48 V

140 dB

20 uA

100 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-3-5

AEC-Q100

Reel, Cut Tape, MouseReel

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

INA281A2QDBVRQ1
Texas Instruments
1: ฿103.68
4,443In Stock

Mfr. Part No.
INA281A2QDBVRQ1

Mouser Part No
595-INA281A2QDBVRQ1

Texas Instruments

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

Learn More

Datasheet

4,443In Stock

Cut Tape

฿103.68

฿77.84

฿71.38

฿64.28

Reel

฿54.59

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

INA281

1 Channel

1.3 MHz

48 V

140 dB

20 uA

55 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-3-5

AEC-Q100

Reel, Cut Tape, MouseReel

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A3IDBVT

INA281A3IDBVR
Texas Instruments
1: ฿82.69
1,383In Stock

Mfr. Part No.
INA281A3IDBVR

Mouser Part No
595-INA281A3IDBVR

Texas Instruments

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A3IDBVT

Learn More

Datasheet

1,383In Stock

Cut Tape

฿82.69

฿61.37

฿56.20

฿50.39

Reel

฿42.96

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MouseReel Available

Min.: 1
Mult.: 1

: 3,000

INA281

1 Channel

1 MHz

48 V

140 dB

20 uA

30 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

INA281B2QDBVRQ1
Texas Instruments
1: ฿103.68
5,277In Stock

Mfr. Part No.
INA281B2QDBVRQ1

Mouser Part No
595-INA281B2QDBVRQ1

Texas Instruments

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

Learn More

Datasheet

5,277In Stock

Cut Tape

฿103.68

฿77.84

฿71.38

฿64.28

Reel

฿54.59

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

INA281

1 Channel

1.3 MHz

48 V

140 dB

20 uA

55 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-3-5

AEC-Q100

Reel, Cut Tape, MouseReel

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

INA281B3QDBVRQ1
Texas Instruments
1: ฿107.88
7,114In Stock

Mfr. Part No.
INA281B3QDBVRQ1

Mouser Part No
595-INA281B3QDBVRQ1

Texas Instruments

Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current

Learn More

Datasheet

7,114In Stock

Cut Tape

฿107.88

฿80.43

฿73.64

฿66.22

Reel

฿56.20

View

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Min.: 1
Mult.: 1

: 3,000

INA281

1 Channel

1 MHz

48 V

140 dB

20 uA

30 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-3-5

AEC-Q100

Reel, Cut Tape, MouseReel

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A4IDBVR

INA281A4IDBVT
Texas Instruments
1: ฿95.93
404In Stock

Mfr. Part No.
INA281A4IDBVT

Mouser Part No
595-INA281A4IDBVT

Texas Instruments

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A4IDBVR

Learn More

Datasheet

404In Stock

Cut Tape

฿95.93

฿72.03

฿65.89

฿62.34

Reel

฿55.56

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

INA281

1 Channel

900 kHz

48 V

140 dB

20 uA

30 uV

20 V

2.7 V

1.5 mA

0.07 %

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A1IDBVT

INA281A1IDBVR
Texas Instruments
1: ฿80.43
1,138In Stock
3,000Expected 2/11/2027

Mfr. Part No.
INA281A1IDBVR

Mouser Part No
595-INA281A1IDBVR

Texas Instruments

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A1IDBVT

Learn More

Datasheet

1,138In Stock

3,000Expected 2/11/2027

Cut Tape

฿80.43

฿59.76

฿54.59

฿49.10

Reel

฿41.02

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

INA281

1 Channel

1.3 MHz

48 V

120 dB

20 uA

100 uV

20 V

2.7 V

1.5 mA

0.5 %

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B4IDBVT

INA281B4IDBVR
Texas Instruments
1: ฿75.26
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
INA281B4IDBVR

Mouser Part No
595-INA281B4IDBVR

Texas Instruments

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B4IDBVT

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

Cut Tape

฿75.26

฿55.88

฿50.71

฿45.54

Reel

฿38.44

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

INA281

1 Channel

900 kHz

48 V

120 dB

20 uA

30 uV

20 V

2.7 V

1.5 mA

0.5 %

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B5IDBVT

INA281B5IDBVR
Texas Instruments
1: ฿73.32
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
INA281B5IDBVR

Mouser Part No
595-INA281B5IDBVR

Texas Instruments

Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B5IDBVT

Learn More

Datasheet

Non-Stocked Lead-Time 9 Weeks

Cut Tape

฿73.32

฿54.26

฿49.42

฿44.25

Reel

฿35.85

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

INA281

1 Channel

900 kHz

48 V

120 dB

20 uA

15 uV

20 V

2.7 V

1.5 mA

0.5 %

- 40 C

+ 125 C

SMD/SMT

SOT-23-5

Reel, Cut Tape, MouseReel

INA281/INA281-Q1 Current Sense Amplifier

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