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).

Results: 23
Select Image Part # Mfr. Description Datasheet Availability Pricing (PHP) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Series Number of Channels GBP - Gain Bandwidth Product Vcm - Common Mode Voltage CMRR - Common Mode Rejection Ratio Ib - Input Bias Current Vos - Input Offset Voltage Supply Voltage - Max Supply Voltage - Min Operating Supply Current Gain Error Minimum Operating Temperature Maximum Operating Temperature Mounting Style Package / Case Qualification SR - Slew Rate Packaging
Texas Instruments Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B1IDBVR 18,349In Stock
Cut Tape
₱182.21
₱136.81
₱125.15
₱112.27
Reel
₱95.71
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current 5,275In Stock
Cut Tape
₱196.93
₱147.85
₱135.58
₱122.09
Reel
₱100.61
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current 4,794In Stock
Cut Tape
₱196.93
₱147.85
₱135.58
₱122.09
Reel
₱96.32
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current 4,172In Stock
Cut Tape
₱196.93
₱147.85
₱135.58
₱122.09
Reel
₱96.93
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current 3,118In Stock
Cut Tape
₱196.93
₱147.85
₱135.58
₱122.09
Reel
₱96.32
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current 2,691In Stock
Cut Tape
₱196.93
₱147.85
₱135.58
₱122.09
Reel
₱101.23
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current 3,639In Stock
Cut Tape
₱196.93
₱147.85
₱135.58
₱122.09
Reel
₱103.68
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A3IDBVT 2,826In Stock
Cut Tape
₱157.06
₱116.57
₱106.75
₱95.71
Reel
₱81.60
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A5IDBVT 2,729In Stock
Cut Tape
₱139.26
₱103.07
₱93.87
₱84.05
Reel
₱68.10
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current 1,174In Stock
Cut Tape
₱196.93
₱147.85
₱135.58
₱122.09
Reel
₱102.45
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B1IDBVT 9,909In Stock
3,000Expected 18/02/2027
Cut Tape
₱152.76
₱113.50
₱103.68
₱93.25
Reel
₱78.53
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current 4,740In Stock
Cut Tape
₱204.91
₱152.76
₱139.88
₱125.77
Reel
₱106.75
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A4IDBVT 3In Stock
3,000Expected 21/12/2026
Cut Tape
₱150.92
₱106.14
₱96.93
₱86.50
Reel
₱66.87
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A4IDBVR 384In Stock
Cut Tape
₱182.21
₱136.81
₱125.15
₱118.41
Reel
₱105.52
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current 128In Stock
Cut Tape
₱200.61
₱149.69
₱136.81
₱122.70
Reel
₱104.30
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B2IDBVT 127In Stock
6,000Expected 07/06/2027
Cut Tape
₱134.97
₱100.00
₱91.41
₱81.60
Reel
₱66.87
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B3IDBVT 1,092In Stock
3,000Expected 21/12/2026
Cut Tape
₱134.97
₱100.00
₱91.41
₱81.60
Reel
₱68.10
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A2IDBVT
35,401On Order
Cut Tape
₱134.97
₱100.00
₱91.41
₱81.60
Reel
₱68.71
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A1IDBVT
5,896Expected 26/07/2027
Cut Tape
₱152.76
₱113.50
₱105.52
₱94.48
Reel
₱79.14
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281A2IDBVR
971Expected 23/11/2026
Cut Tape
₱188.34
₱140.49
₱128.84
₱115.34
Reel
₱101.84
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 -4-V to 11 0-V 1.3-MHz current
2,988Expected 31/05/2027
Cut Tape
₱196.93
₱147.85
₱135.58
₱122.09
Reel
₱101.84
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B4IDBVT Non-Stocked Lead-Time 26 Weeks
Cut Tape
₱146.63
₱109.20
₱99.39
₱88.96
Reel
₱73.62
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 2.5 V/us Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers -4-V to 110-V 1.3-M Hz high-precision c A 595-INA281B5IDBVT Non-Stocked Lead-Time 26 Weeks
Cut Tape
₱146.63
₱109.20
₱99.39
₱88.96
Reel
₱66.87
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 2.5 V/us Reel, Cut Tape, MouseReel