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Texas Instruments INA290A2IDCKR — Logic ICs
Texas Instruments

TI INA290A2IDCKR Current-Sense Amplifier, 1.1 MHz, SC-70-5

MPNINA290A2IDCKR
End of Life

Texas Instruments INA290A2IDCK, Current Sense Amplifier, 1 Circuit, SC-70-5, 2.7 V to 20 V supply, 3 µV offset, 1.1 MHz bandwidth, 2 V/µs slew rate, -40°C to 125°C.

$2.95Ref. price · indicative, final on quote
INA290A2IDCKR datasheet
Packaging5-TSSOP, SC-70-5, SOT-353
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

INA290A2IDCKR Technical Specifications
ParameterValue
Mounting typeSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset3 µV
Voltage - supply span2.7 V
Current - supply370µA
Current - input bias20 µA
Operating temperature-40°C ~ 125°C
-3db bandwidth1.1 MHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate2V/µs
Case5-TSSOP, SC-70-5, SOT-353
Number of circuits1

Product details

Precision current sense in a small footprint

The INA290A2IDCKR: The 1.1 MHz -3 dB bandwidth and 2 V/µs slew rate make it usable for DC/DC inductor current monitoring or motor-phase current feedback where the signal content stays below a few hundred kilohertz.

A 3 µV input offset voltage allows a smaller shunt resistor while keeping measurement error acceptable. Stack the offset with the 20 µA input bias current and the gain error over temperature when sizing the shunt — the INA290A2IDCKR's 370 µA quiescent supply current is low enough for always-on monitoring in battery-powered systems.

Frequently asked questions

What is the closest functional alternative to INA290A2IDCKR?

The INA4290A2IRGVR is a quad-channel version of the same current-sense amplifier family, sharing the same 2.7 V to 20 V supply range, 1.1 MHz bandwidth, and 2 V/µs slew rate, but in a different package and with four amplifiers instead of one.