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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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model 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
Texas Instruments Current & Power Monitors & Regulators Auto Cat Hi-Side Mea surement Mon
Datasheet
1,969In Stock
Cut Tape
$2.72
$2.02
$1.83
$1.64
Reel
$1.39
View
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
Texas Instruments Current & Power Monitors & Regulators AutoCatHiSideMsrmnt CrrntShuntMntr
Datasheet
3,557In Stock
Cut Tape
$3.90
$2.93
$2.68
$2.41
Reel
$2.12
View
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
Texas Instruments Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp A 595-INA138NA/250
Datasheet
12,173In Stock
30,000Expected 1/15/2027
Cut Tape
$2.16
$1.59
$1.44
$1.27
Reel
$1.07
View
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
Texas Instruments Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp A 595-INA168NA/3K
Datasheet
108In Stock
3,500Expected 2/4/2027
Cut Tape
$4.51
$3.39
$3.12
$2.81
Reel
$2.64
View
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
Texas Instruments Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp A 595-INA138NA/3K
Datasheet
449In Stock
Cut Tape
$3.50
$2.60
$2.38
$2.15
Reel
$2.07
View
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
Texas Instruments Current & Power Monitors & Regulators Hi-Sd Msmnt Current Shunt Mntr Crnt Otp A 595-INA168NA/250
Datasheet
30,000On Order
Cut Tape
$3.47
$2.57
$2.35
$2.11
Reel
$1.79
View
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
Texas Instruments Current & Power Monitors & Regulators AC Hi-Side Msmt Crnt Shunt Mon
Datasheet
Lead-Time 12 Weeks
Cut Tape
$3.90
$2.93
$2.68
$2.41
Reel
$2.04
View
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
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
$2.77
$2.74
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