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Texas Instruments INA180B4QDBVRQ1 — Analog & Data Acquisition

INA180B4QDBVRQ1 Automotive Current Sense Amplifier, 105 kHz

MPNINA180B4QDBVRQ1
Active

Texas Instruments INA180B4QDBVRQ1, Automotive AEC-Q100 current sense amplifier, single circuit, 105 kHz -3dB bandwidth, 2V/µs slew rate, rail-to-rail output, 2.7 V to 5.5 V supply, SOT-23-5, -40°C to 125°C.

$0.6900Ref. price · indicative, final on quote
Texas Instruments INA180B4QDBVRQ1 datasheet (PDF)
PackagingSC-74A, SOT-753
RoHSROHS3 Compliant
SeriesAutomotive, AEC-Q100
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

INA180B4QDBVRQ1 specifications
ParameterValue
SeriesAutomotive, AEC-Q100
Output typeRail-to-Rail
MountingSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset100 µV
Voltage - supply span5.5 V
Current - supply197µA
Current - input bias80 µA
Operating temperature-40°C~125°C(TA)
-3db bandwidth105 kHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate2V/µs
CaseSC-74A, SOT-753
Number of circuits1

Product details

What this current-sense amplifier does

The Texas Instruments INA180B4QDBVRQ1 is a single-channel current-sense amplifier qualified to AEC-Q100 for automotive applications. It measures current by sensing the voltage drop across a shunt resistor and outputs a rail-to-rail voltage proportional to that drop.

Package and rework — SOT-23-5

The INA180B4QDBVRQ1 comes in a SOT-23-5 package. Five pins, standard footprint. The 197 µA quiescent current means minimal self-heating.

Temperature grade and environment

Rated for -40°C to 125°C ambient, this part covers under-hood automotive, industrial motor drives, and outdoor telecom enclosures. The AEC-Q100 qualification means it has passed the stress tests for automotive-grade reliability — extended temperature cycling, HAST, and latch-up. For a BOM line that needs a current-sense amp in a 105°C cabinet or an engine-bay ECU, this is the tier to specify.

Sourcing and lifecycle

The INA180B4QDBVRQ1 is listed as Active and ROHS3 compliant. The base product number is INA180, so the gain version and Q1 automotive grade are fixed in this suffix — no field-configurable options.

Frequently asked questions

Is INA180B4QDBVRQ1 AEC-Q100 qualified?

Yes, the INA180B4QDBVRQ1 is part of the Automotive, AEC-Q100 series, meaning it is qualified for automotive-grade applications including under-hood and cabin environments.

What is the bandwidth of INA180B4QDBVRQ1?

The -3 dB bandwidth is 105 kHz. This is suitable for DC and low-frequency AC current sensing in motor drives, battery monitors, and power distribution; it is not intended for high-frequency switching supply feedback loops.

What is the supply current of INA180B4QDBVRQ1?

The quiescent supply current is 197 µA, which is low enough for always-on automotive modules and battery-powered systems.

What is the difference between INA180B4QDBVRQ1 and INA180A4QDBVRQ1?

The difference is the gain version: the suffix indicates a specific gain setting within the INA180 family. Both are AEC-Q100 qualified and share the same package and pinout. For exact gain values, refer to the datasheet gain table.