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Texas Instruments INA190A3IDCKR — Analog & Data Acquisition

TI INA190A3IDCKR Current Sense Amplifier, Zero-Drift, 35 kHz

MPNINA190A3IDCKR
End of Life

Texas Instruments Zero-Drift Current Sense Amplifier, INA190A3IDCKR, 1 Circuit, 35 kHz Gain Bandwidth, 0.3 V/µs Slew Rate, Rail-to-Rail Output, SC-70-6 Package, -40°C to 125°C.

$2.92Ref. price · indicative, final on quote
Texas Instruments INA190A3IDCKR datasheet (PDF)
Packaging6-TSSOP, SC-88, SOT-363
RoHSROHS3 Compliant
SeriesZero-Drift
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

INA190A3IDCKR specifications
ParameterValue
SeriesZero-Drift
Output typeRail-to-Rail
MountingSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset3 µV
Voltage - supply span5.5 V
Current - supply48µA
Current - input bias500 pA
Operating temperature-40°C ~ 125°C (TA)
Gain bandwidth product35 kHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate0.3V/µs
Case6-TSSOP, SC-88, SOT-363
Number of circuits1

Product details

Zero-drift current sense for precision shunt monitoring

It converts the voltage across an external shunt resistor into a rail-to-rail output, with a gain bandwidth product of 35 kHz and a slew rate of 0.3 V/µs. The zero-drift architecture holds input offset voltage to 3 µV, keeping measurement accuracy stable across the -40°C to 125°C operating range. Typical applications include low-side and high-side current sensing in power management, motor control, and industrial load monitoring.

The 3 µV input offset voltage keeps measurement error low across temperature. The 48 µA supply current is the quiescent draw.

Frequently asked questions

What is the INA190A3IDCKR output type?

Rail-to-rail output, so the voltage swing reaches both supply rails. This lets a downstream ADC use the full input range without a level shifter.

Is INA190A3IDCKR available via RFQ confirmation?

Stock and pricing are confirmed at quote time. Submit an RFQ for current availability and a firm quote through independent distribution.

What are alternatives to INA190A3IDCKR?

For a wider bandwidth and higher slew rate in the same Zero-Drift current sense family, consider the INA254A1IPWAR (350 kHz, 2.4 V/µs, TSSOP package). For a general-purpose rail-to-rail op-amp, the TLV9351IDCKR offers 3.5 MHz bandwidth and 20 V/µs slew rate, but it is not a dedicated current sense amplifier.

Can INA190A3IDCKR be used for high-side current sensing?

Yes. The common-mode voltage range extends to the supply rail, and the rail-to-rail output allows the signal to swing to the ADC input. The zero-drift topology keeps offset drift low across temperature, which is important for accurate high-side measurements where the shunt voltage is small.

Is INA190A3IDCKR obsolete?

No. The product status is Active, with no announced discontinuation. It remains available for new designs.