INAx180/INAx181 Current Sense Amplifiers

Texas Instruments INAx180/INAx181 Current Sense Amplifiers are sense voltage drops across current-sense resistors at common-mode voltages from –0.2V to +26V, independent of the supply voltage. These amplifiers integrate a matched resistor gain network in four fixed-gain device options: 20V/V, 50V/V, 100V/V, or 200V/V. This matched gain resistor network minimizes gain error and reduces the temperature drift. Each device operates from a single 2.7V to 5.5V power supply, drawing a maximum of 260µA of supply current. The INAx181 devices have a bidirectional current-sensing capability. All device options are specified over the extended operating temperature range of –40°C to +125°C. The INAx180-Q1/INAx181-Q1 devices are AEC-Q100 qualified for automotive applications. These devices are used in motor controls and lighting controls.

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Description Datasheet Availability Pricing (TWD) 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
Packaging
Texas Instruments Current Sense Amplifiers AEC-Q100 26V quad ch annel 350kHz curr
Datasheet
30,471In Stock
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Min.: 1
Mult.: 1
: 2,000

INA4180 4 Channel 350 kHz 12 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 900 uA 0.1 % - 40 C + 125 C SMD/SMT TSSOP-14 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 26V quad ch annel bi-directio
Datasheet
2,057In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

INA4181 4 Channel 150 kHz 12 V 84 dB 75 uA 100 uV 5.5 V 2.7 V 900 uA 0.1 % - 40 C + 125 C SMD/SMT TSSOP-20 AEC-Q100 Reel, Cut Tape, MouseReel

Texas Instruments Current Sense Amplifiers AEC-Q100 26V dual ch annel 350kHz curr
Datasheet
10,765In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

INA2180 2 Channel 350 kHz 12 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 500 uA 0.1 % - 40 C + 125 C SMD/SMT VSSOP-8 AEC-Q100 Reel, Cut Tape, MouseReel

Texas Instruments Current Sense Amplifiers AEC-Q100 26V dual ch annel 350kHz curr
Datasheet
28,416In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

INA2180 2 Channel 210 kHz 12 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 500 uA 0.1 % - 40 C + 125 C SMD/SMT VSSOP-8 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 26V 350kH z current sense ampl
Datasheet
5,082In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

INA180 1 Channel 105 kHz - 200 mV to 26 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 260 uA 0.1 % - 40 C + 125 C SMD/SMT SOT-23-5 AEC-Q100 Reel, Cut Tape, MouseReel

Texas Instruments Current Sense Amplifiers AEC-Q100 26V dual ch annel 350kHz curr
Datasheet
2,186In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

INA2180 2 Channel 150 kHz 12 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 500 uA 0.1 % - 40 C + 125 C SMD/SMT VSSOP-8 AEC-Q100 Reel, Cut Tape, MouseReel

Texas Instruments Current Sense Amplifiers 26V dual channel 3 5 0kHz current sense A 595-INA2180A4IDGKT
Datasheet
2,177In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

INA2180 2 Channel 105 kHz 12 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 500 uA 0.1 % - 40 C + 125 C SMD/SMT VSSOP-8 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers 26V quad channel b i -directional 350kH
Datasheet
1,491In Stock
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Min.: 1
Mult.: 1
: 2,000

INA4181 4 Channel 105 kHz 12 V 84 dB 75 uA 100 uV 5.5 V 2.7 V 900 uA 0.1 % - 40 C + 125 C SMD/SMT TSSOP-20 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 26V 350kH z current sense ampl
Datasheet
4,137In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

INA180 1 Channel 150 kHz - 200 mV to 26 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 260 uA 0.1 % - 40 C + 125 C SMD/SMT SOT-23-5 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers 26V dual channel b i -directional 350kH A 595-INA2181A4IDSQT
Datasheet
2,851In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

INA2181 2 Channel 105 kHz 12 V 100 dB 75 uA 100 uV 5.5 V 2.7 V 500 uA 0.1 % - 40 C + 125 C SMD/SMT WSON-10 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 26V quad ch annel 350kHz curr
Datasheet
1,123In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

INA4180 4 Channel 210 kHz 12 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 900 uA 0.1 % - 40 C + 125 C SMD/SMT TSSOP-14 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers 26-V bi-directional 350-kHz current-sens
Datasheet
8,480In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

INA181 1 Channel 350 kHz 12 V 84 dB 75 uA 100 uV 5.5 V 2.7 V 195 uA 0.1 % - 40 C + 125 C SMD/SMT SC-70-6 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers 26V quad channel 3 5 0kHz current sense
Datasheet
6,957In Stock
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Min.: 1
Mult.: 1
: 2,000

INA4180 4 Channel 350 kHz 12 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 900 uA 0.1 % - 40 C + 125 C SMD/SMT TSSOP-14 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 26V quad ch annel bi-directio
Datasheet
2,165In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

INA4181 4 Channel 210 kHz 12 V 84 dB 75 uA 100 uV 5.5 V 2.7 V 900 uA 0.1 % - 40 C + 125 C SMD/SMT TSSOP-20 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers 26-V bi-directional 350-kHz current-sens
Datasheet
2,566In Stock
9,000On Order
Min.: 1
Mult.: 1

INA181 1 Channel 210 kHz 12 V 84 dB 75 uA 100 uV 5.5 V 2.7 V 195 uA 0.1 % - 40 C + 125 C SMD/SMT SC-70-6
Texas Instruments Current Sense Amplifiers 26-V bi-directional 350-kHz current-sens
Datasheet
6,206In Stock
Min.: 1
Mult.: 1
Max.: 1,001

INA181 1 Channel 150 kHz 12 V 84 dB 75 uA 100 uV 5.5 V 2.7 V 195 uA 0.1 % - 40 C + 125 C SMD/SMT SC-70-6

Texas Instruments Current Sense Amplifiers 26V dual channel 3 5 0kHz current sense A 595-INA2180A1IDGKT
Datasheet
4,613In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

INA2180 2 Channel 350 kHz 12 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 500 uA 0.1 % - 40 C + 125 C SMD/SMT VSSOP-8 Reel, Cut Tape, MouseReel

Texas Instruments Current Sense Amplifiers 26V dual channel 3 5 0kHz current sense A 595-INA2180A3IDGKT
Datasheet
Lead-Time 16 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

INA2180 2 Channel 150 kHz 12 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 500 uA 0.1 % - 40 C + 125 C SMD/SMT VSSOP-8 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers AEC-Q100 26V dual ch annel bi-directio
Datasheet
7,169In Stock
5,000Expected 9/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

INA2181 2 Channel 350 kHz 12 V 100 dB 75 uA 100 uV 5.5 V 2.7 V 500 uA 0.1 % - 40 C + 125 C SMD/SMT MSOP-10 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers 26V quad channel 3 5 0kHz current sense
Datasheet
3,106In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

INA4180 4 Channel 210 kHz 12 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 900 uA 0.1 % - 40 C + 125 C SMD/SMT TSSOP-14 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers 26V quad channel b i -directional 350kH
Datasheet
2,936In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

INA4181 4 Channel 210 kHz 12 V 84 dB 75 uA 100 uV 5.5 V 2.7 V 900 uA 0.1 % - 40 C + 125 C SMD/SMT TSSOP-20 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers 26V dual channel 3 5 0kHz current sense A 595-INA2180A1IDSGT
Datasheet
156In Stock
3,000Expected 10/2/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

INA2180 2 Channel 350 kHz 12 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 500 uA 0.1 % - 40 C + 125 C SMD/SMT WSON-8 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers 26V dual channel 3 5 0kHz current sense A 595-INA2180A4IDSGT
Datasheet
271In Stock
3,000Expected 10/5/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

INA2180 2 Channel 105 kHz 12 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 500 uA 0.1 % - 40 C + 125 C SMD/SMT WSON-8 Reel, Cut Tape, MouseReel

Texas Instruments Current Sense Amplifiers AEC-Q100 26V dual ch annel 350kHz curr
Datasheet
2,284In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

INA2180 2 Channel 105 kHz 12 V 100 dB 80 uA 100 uV 5.5 V 2.7 V 500 uA 0.1 % - 40 C + 125 C SMD/SMT VSSOP-8 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Current Sense Amplifiers 26V dual channel b i -directional 350kH A 595-INA2181A1IDGST
Datasheet
3,481In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

INA2181 2 Channel 350 kHz 12 V 100 dB 75 uA 100 uV 5.5 V 2.7 V 500 uA 0.1 % - 40 C + 125 C SMD/SMT MSOP-10 Reel, Cut Tape, MouseReel