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Texas Instruments INA213BIDCKR — Logic ICs

Texas Instruments INA213BIDCKR Current Sense Amplifier

MPNINA213BIDCKR
End of Life

Texas Instruments Zero-Drift series, INA213BIDCKR, Current Sense Amplifier, 1 Circuit, 14 kHz GBW, 5 µV offset, 65 µA supply, SC-70-6, -40°C to 125°C.

$1.22Ref. price · indicative, final on quote
Packaging6-TSSOP, SC-88, SOT-363
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
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Specifications

INA213BIDCKR Technical Specifications
ParameterValue
SeriesZero-Drift
Mounting typeSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset5 µV
Voltage - supply span2.7 V
Current - supply65µA
Current - input bias28 µA
Operating temperature-40°C ~ 125°C
Gain bandwidth product14 kHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate0.4V/µs
Case6-TSSOP, SC-88, SOT-363
Number of circuits1

Product details

What the 5 µV offset and 14 kHz bandwidth mean for your measurement chain

Its 5 µV input offset voltage sets the floor for the smallest current you can resolve across a shunt — at a 10 mΩ sense resistor, that offset corresponds to 500 µA of apparent current error before any gain-stage noise. The 14 kHz gain-bandwidth product tells you this part is designed for DC and low-frequency measurements: motor-winding current, battery charge/discharge, power-supply load monitoring. It is not a fit for switching-regulator inductor current sensing where you need MHz bandwidth. The supply voltage span runs from 2.7 V to 26 V, so the same BOM line works on a 3.3 V logic rail, a 5 V automotive bus, or a 24 V industrial supply. Quiescent current is 65 µA, low enough to leave the amplifier powered continuously in a battery-monitoring application without a dedicated load-switch.

That 125°C upper limit means it can sit on a motor-drive PCB near the IGBTs or inside an engine-control unit without derating. The Zero-Drift architecture keeps the offset drift low across this span — the 5 µV figure is the max at 25°C, and the auto-zero loop holds it tight over temperature.

Package and footprint for the board designer

The SC-70-6 footprint is 2.1 mm × 2.0 mm — roughly half the area of an SOIC-8. That saves board space in multi-channel designs, but the small pad means the reflow profile needs a good paste deposit on the centre pad if the part has one (this package does not have an exposed thermal pad; dissipation is through the leads). Surface-mount only.

Frequently asked questions

Can INA213BIDCKR be used for high-side current sensing?

Yes — the INA213BIDCKR is a current-sense amplifier designed for both high-side and low-side shunt measurements. The input common-mode range extends from the negative rail to within about 0.5 V of the positive rail, so it handles high-side sensing on a 24 V bus as long as the supply rail is at least 2.7 V above the negative rail.