Current Sense Amplifiers – Mouser Singapore

.hide-partial { max-height: none; } .show-more { display: none; }

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).

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 23

Applied Filters:

GBP - Gain Bandwidth Product

CMRR - Common Mode Rejection Ratio

Vos - Input Offset Voltage

Gain Error

Package/Case

Qualification

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

INA281B1IDBVT
Texas Instruments
1: $4.04
18,419In 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

Learn More

Datasheet

18,419In Stock

Cut Tape

$4.04

$3.03

$2.77

$2.49

Reel

$2.33

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

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

Reel, Cut Tape, MouseReel

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

INA281A4QDBVRQ1
Texas Instruments
1: $4.20
3,418In 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

Learn More

Datasheet

3,418In Stock

Cut Tape

$4.20

$3.14

$2.88

$2.60

Reel

$2.18

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

Reel, Cut Tape, MouseReel

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

INA281A5QDBVRQ1
Texas Instruments
1: $4.20
1,721In 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

Learn More

Datasheet

1,721In Stock

Cut Tape

$4.20

$3.14

$2.88

$2.60

View

Reel

$2.16

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

Reel, Cut Tape, MouseReel

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

INA281B4QDBVRQ1
Texas Instruments
1: $4.20
4,125In 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

Learn More

Datasheet

4,125In Stock

Cut Tape

$4.20

$3.14

$2.88

$2.60

View

Reel

$1.99

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

Reel, Cut Tape, MouseReel

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

INA281A2IDBVT
Texas Instruments
1: $4.04
717In 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

Learn More

Datasheet

717In Stock

Cut Tape

$4.04

$3.03

$2.77

$2.49

Reel

$2.34

View

MouseReel Available

Min.: 1
Mult.: 1

: 250

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: $4.45
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

Learn More

Datasheet

2,716In Stock

Cut Tape

$4.45

$3.32

$3.03

$2.72

Reel

$2.31

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

Reel, Cut Tape, MouseReel

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

INA281A3QDBVRQ1
Texas Instruments
1: $4.27
2,527In Stock
3,000On Order

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

Learn More

Datasheet

2,527In Stock

3,000On Order

Cut Tape

$4.27

$3.18

$2.91

$2.61

Reel

$2.19

View

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-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-INA281A4IDBVT

INA281A4IDBVR
Texas Instruments
1: $3.09
2,831In 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

Learn More

Datasheet

2,831In Stock

Cut Tape

$3.09

$2.28

$2.08

$1.86

Reel

$1.51

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-INA281A5IDBVT

INA281A5IDBVR
Texas Instruments
1: $3.09
2,864In 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

Learn More

Datasheet

2,864In Stock

Cut Tape

$3.09

$2.28

$2.08

$1.86

Reel

$1.51

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

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

INA281B1IDBVR
Texas Instruments
1: $3.09
2,238In 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

Learn More

Datasheet

2,238In Stock

Cut Tape

$3.09

$2.28

$2.08

$1.86

Reel

$1.60

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 AEC-Q100 -4-V to 11 0-V 1.3-MHz current

INA281B1QDBVRQ1
Texas Instruments
1: $4.27
7,955In 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

7,955In Stock

Cut Tape

$4.27

$3.18

$2.91

$2.61

$2.48

Reel

$2.09

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

INA281B2IDBVR
Texas Instruments
1: $2.99
4,065In 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

Learn More

Datasheet

4,065In Stock

Cut Tape

$2.99

$2.22

$2.03

$1.81

Reel

$1.51

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: $2.99
3,776In 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

3,776In Stock

Cut Tape

$2.99

$2.22

$2.03

$1.81

Reel

$1.51

View

MouseReel Available

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: $3.85
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

$3.85

$2.88

$2.64

$2.37

Reel

$2.01

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: $4.26
3,878In 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

3,878In Stock

Cut Tape

$4.26

$3.17

$2.90

$2.60

Reel

$2.22

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: $3.39
1,674In 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

1,674In Stock

Cut Tape

$3.39

$2.52

$2.30

$2.07

Reel

$1.74

View

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: $4.20
5,378In 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

5,378In Stock

Cut Tape

$4.20

$3.14

$2.88

$2.60

Reel

$2.19

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-INA281A4IDBVR

INA281A4IDBVT
Texas Instruments
1: $4.08
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

$4.08

$3.03

$2.77

$2.49

Reel

$2.35

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: $2.99
1,365In Stock
3,000Expected 11/2/2027

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

1,365In Stock

3,000Expected 11/2/2027

Cut Tape

$2.99

$2.22

$2.03

$1.81

View

Reel

$1.51

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 AEC-Q100 -4-V to 11 0-V 1.3-MHz current

INA281B3QDBVRQ1
Texas Instruments
1: $4.37
725In Stock
6,000Expected 2/11/2026

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

725In Stock

6,000Expected 2/11/2026

Cut Tape

$4.37

$3.28

$3.01

$2.71

Reel

$2.30

View

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-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-INA281A2IDBVT

INA281A2IDBVR
Texas Instruments
1: $2.99
3,635Expected 5/8/2026

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

Learn More

Datasheet

3,635Expected 5/8/2026

Cut Tape

$2.99

$2.22

$2.03

$1.81

Reel

$1.51

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-INA281B4IDBVT

INA281B4IDBVR
Texas Instruments
1: $3.09
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

$3.09

$2.28

$2.08

$1.86

Reel

$1.58

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: $3.09
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

$3.09

$2.28

$2.08

$1.86

Reel

$1.51

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

Customer Service Office

Company

Resources

Support