Current & Power Monitors & Regulators

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INA138/168 High-Side Current Shunt Monitors

Texas Instruments INA138/168 High-Side Current Shunt Monitors are high-side, unipolar, current shunt monitors. Each comes with wide input common-mode voltage range, low quiescent current, and tiny SOT-23 packaging that enables use in a variety of applications. Input common-mode and power-supply voltages are independent and can range from 2.7V to 36V for the INA138 and 2.7V to 60V for the INA168. Quiescent current is only 25µA, which permits connecting the power supply to either side of the current measurement shunt with minimal error. The device converts a differential input voltage to a current output. This current is converted back to a voltage with an external load resistor that sets any gain from 1 to over 100. Although designed for current shunt measurement, the circuit invites creative applications in measurement and level shifting.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Sensing Method	Supply Voltage - Max	Supply Voltage - Min	Operating Supply Current	Accuracy	Minimum Operating Temperature	Maximum Operating Temperature	Mounting Style	Package/Case	Qualification	Packaging
Current & Power Monitors & Regulators Auto Cat Hi-Side Mea surement Mon INA138QPWRQ1 Texas Instruments 1: $2.09 1,969In Stock	Mfr. Part No. INA138QPWRQ1 Mouser Part No 595-INA138QPWRQ1	Texas Instruments	Current & Power Monitors & Regulators Auto Cat Hi-Side Mea surement Mon Learn More about Texas Instruments ti ina1x8 shunt monitors	Datasheet	1,969In Stock	Cut Tape $2.09 $1.55 $1.41 $1.26 Reel $1.07 View $1.19 $1.15 $1.10 $1.03 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Current Monitors	High Side	36 V	2.7 V	60 uA	0.5 %	- 40 C	+ 125 C	SMD/SMT	TSSOP-8	AEC-Q100	Reel, Cut Tape, MouseReel
Current & Power Monitors & Regulators AutoCatHiSideMsrmnt CrrntShuntMntr INA168QPWRQ1 Texas Instruments 1: $3.49 3,518In Stock	Mfr. Part No. INA168QPWRQ1 Mouser Part No 595-INA168QPWRQ1	Texas Instruments	Current & Power Monitors & Regulators AutoCatHiSideMsrmnt CrrntShuntMntr Learn More about Texas Instruments ti ina1x8 shunt monitors	Datasheet	3,518In Stock	Cut Tape $3.49 $2.61 $2.38 $2.14 $2.02 Reel $1.71 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Current Monitors	High Side	60 V	2.7 V	60 uA	0.5 %	- 40 C	+ 125 C	SMD/SMT	TSSOP-8	AEC-Q100	Reel, Cut Tape, MouseReel
Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp A 595-INA138NA/250 INA138NA/3K Texas Instruments 1: $1.66 12,677In Stock 30,000Expected 2027/01/15	Mfr. Part No. INA138NA/3K Mouser Part No 595-INA138NA/3K	Texas Instruments	Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp A 595-INA138NA/250 Learn More about Texas Instruments ti ina1x8 shunt monitors	Datasheet	12,677In Stock 30,000Expected 2027/01/15	Cut Tape $1.66 $1.22 $1.11 $0.98 Reel $0.821 View $0.921 $0.886 $0.88 $0.804 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Current Monitors	High Side	36 V	2.7 V	60 uA	0.5 %	- 40 C	+ 125 C	SMD/SMT	SOT-23-5		Reel, Cut Tape, MouseReel
Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp A 595-INA138NA/3K INA138NA/250 Texas Instruments 1: $2.69 385In Stock	Mfr. Part No. INA138NA/250 Mouser Part No 595-INA138NA/250	Texas Instruments	Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp A 595-INA138NA/3K Learn More about Texas Instruments ti ina1x8 shunt monitors	Datasheet	385In Stock	Cut Tape $2.69 $2.00 $1.83 $1.65 Reel $1.59 View $1.52 $1.47 $1.45 $1.42 MouseReel Available	Min.: 1 Mult.: 1 : 250	Current Monitors	High Side	36 V	2.7 V	60 uA	0.5 %	- 40 C	+ 125 C	SMD/SMT	SOT-23-5		Reel, Cut Tape, MouseReel
Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp A 595-INA168NA/3K INA168NA/250 Texas Instruments 1: $3.94 14,743On Order	Mfr. Part No. INA168NA/250 Mouser Part No 595-INA168NA/250	Texas Instruments	Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp A 595-INA168NA/3K Learn More about Texas Instruments ti ina1x8 shunt monitors	Datasheet	14,743On Order On Order Ship Dates Mfr. No: INA168NA/250 Stock: 0 On Order: 3,493 Expected 2027/02/04 6,000 Expected 2027/02/25 5,250 TBD Factory Lead Time: 20 Weeks	Cut Tape $3.94 $2.97 $2.73 $2.47 Reel $2.33 View $2.17 $2.13 MouseReel Available	Min.: 1 Mult.: 1 : 250	Current Monitors	High Side	60 V	2.7 V	60 uA	0.5 %	- 40 C	+ 125 C	SMD/SMT	SOT-23-5		Reel, Cut Tape, MouseReel
Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp A 595-INA168NA/250 INA168NA/3K Texas Instruments 1: $2.97 30,000On Order	Mfr. Part No. INA168NA/3K Mouser Part No 595-INA168NA/3K	Texas Instruments	Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp A 595-INA168NA/250 Learn More about Texas Instruments ti ina1x8 shunt monitors	Datasheet	30,000On Order On Order Ship Dates Mfr. No: INA168NA/3K Stock: 0 On Order: 18,000 Expected 2026/12/24 12,000 Expected 2027/01/15 Factory Lead Time: 20 Weeks	Cut Tape $2.97 $2.21 $2.02 $1.81 Reel $1.54 $1.51 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Current Monitors	High Side	60 V	2.7 V	60 uA	0.5 %	- 40 C	+ 125 C	SMD/SMT	SOT-23-5		Reel, Cut Tape, MouseReel
Current & Power Monitors & Regulators AC Hi-Side Msmt Crnt Shunt Mon INA168QDBVRQ1 Texas Instruments 1: $3.48 5,958On Order	Mfr. Part No. INA168QDBVRQ1 Mouser Part No 595-INA168QDBVRQ1	Texas Instruments	Current & Power Monitors & Regulators AC Hi-Side Msmt Crnt Shunt Mon Learn More about Texas Instruments ti ina1x8 shunt monitors	Datasheet	5,958On Order On Order Ship Dates Mfr. No: INA168QDBVRQ1 Stock: 0 On Order: 2,958 Expected 2026/12/07 3,000 Expected 2027/02/22 Factory Lead Time: 12 Weeks	Cut Tape $3.48 $2.59 $2.37 $2.13 Reel $1.81 View $2.01 $1.97 $1.86 $1.77 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Current Monitors	High Side	60 V	2.7 V	60 uA	0.5 %	- 40 C	+ 125 C	SMD/SMT	SOT-23-5	AEC-Q100	Reel, Cut Tape, MouseReel
Current & Power Monitors & Regulators Hi-Side Msmt Current Shunt Mon A 595-INA A 595-INA168QPWRQ1 INA168QPWRG4Q1 Texas Instruments 2,000: $2.22 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. INA168QPWRG4Q1 Mouser Part No 595-INA168QPWRG4Q1	Texas Instruments	Current & Power Monitors & Regulators Hi-Side Msmt Current Shunt Mon A 595-INA A 595-INA168QPWRQ1	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $2.22	Min.: 2,000 Mult.: 2,000 : 2,000	Current Monitors	High Side	60 V	2.7 V	45 uA	0.5 %	- 40 C	+ 125 C	SMD/SMT	TSSOP-8	AEC-Q100	Reel

INA138/168 High-Side Current Shunt Monitors

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