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Texas Instruments INA190A4IDDFR — Logic ICs
Texas Instruments

INA190A4IDDFR Zero-Drift Current Sense Amplifier, 33 kHz GBW

MPNINA190A4IDDFR
End of Life

Texas Instruments Zero-Drift, INA190A4IDDFR, Current Sense Amplifier, 1 Circuit, 33 kHz Gain Bandwidth, 0.3 V/µs Slew Rate, Rail-to-Rail Output, 1.7 V to 5.5 V Supply, -40°C to 125°C, TSOT-23-8 Package.

$2.92Ref. price · indicative, final on quote
INA190A4IDDFR datasheet
PackagingSOT-23-8
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

INA190A4IDDFR Technical Specifications
ParameterValue
SeriesZero-Drift
Output typeRail-to-Rail
Mounting typeSurface 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 product33 kHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate0.3V/µs
CaseSOT-23-8
Number of circuits1

Product details

Precision current sensing in a TSOT-23-8 footprint

The INA190A4IDDFR: Its 3 µV input offset voltage and 500 pA input bias current make it suitable for low-side or high-side monitoring where shunt voltage drops are in the millivolt range.

What the 3 µV offset and 48 µA supply mean for your BOM

The 3 µV input offset means the amplifier introduces negligible error at the shunt. Combined with the 48 µA supply current, this part fits designs where the sense amplifier runs continuously on a battery.

Active lifecycle and sourcing note

For BOM planning, the Zero-Drift series includes multiple gain options (A1 through A5) sharing the same TSOT-23-8 footprint, so a gain change during development does not require a board spin.

Frequently asked questions

What is the gain bandwidth product of INA190A4IDDFR?

The gain-bandwidth product is 33 kHz, with a slew rate of 0.3 V/µs. This bandwidth is suited for DC or low-frequency current sensing — load monitoring, overcurrent detection, or charging profiles — not high-speed switching waveforms.

What is the equivalent or alternative for INA190A4IDDFR?

Within the same Zero-Drift current-sense family, the INA254A1IPWAR offers a higher 350 kHz bandwidth and 2.4 V/µs slew rate but shares the same basic function. For a four-channel alternative with 1.1 MHz bandwidth, the INA4290A2IRGVR is a pin-compatible option in a different package. Neither is a drop-in replacement — verify the gain and bandwidth requirements against your shunt voltage range.