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Texas Instruments INA281A5IDBVR — Analog & Data Acquisition

TI INA281A5IDBVR Current Sense Amplifier, 2.7V-20V, SOT-23-5

MPNINA281A5IDBVR
End of Life

Texas Instruments INA281A5IDBVR, Current Sense Amplifier, 1 Circuit, 900 kHz Gain Bandwidth, 2.5 V/µs Slew Rate, 2.7 V to 20 V Supply, SOT-23-5, -40°C to 125°C.

$2.63Ref. price · indicative, final on quote
Texas Instruments INA281A5IDBVR datasheet (PDF)
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

INA281A5IDBVR specifications
ParameterValue
MountingSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset15 µV
Voltage - supply span2.7 V
Current - supply1.5mA
Current - input bias20 µA
Operating temperature-40°C ~ 125°C (TA)
Gain bandwidth product900 kHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate2.5V/µs
CaseSC-74A, SOT-753
Number of circuits1

Product details

Supply range and where it fits

The INA281A5IDBVR: Its supply span from 2.7 V to 20 V covers common rails. The 900 kHz gain-bandwidth product and 2.5 V/µs slew rate track switching-regulator inductor current or motor-drive phase current transients.

The 15 µV input offset and 20 µA input bias are typical for a shunt-based current monitor — accurate enough for a 1% system-level measurement without trimming.

SOT-23-5 — a common footprint, easy to hand-solder or reflow. ROHS3 compliant, no lead or halogen restrictions to flag in a BOM review.

Frequently asked questions

Is INA281A5IDBVR RoHS compliant?

Yes, it is ROHS3 compliant per the manufacturer's listing.

Does INA281A5IDBVR work with a 5V supply?

Yes, 5 V is well within the 2.7 V to 20 V supply range.