Skip to main content
Texas Instruments INA186A3IDCKR — Logic ICs
Texas Instruments

INA186A3IDCKR Current Sense Amplifier, Zero-Drift, SC-70-6

MPNINA186A3IDCKR
End of Life

Texas Instruments INA186A3IDCKR, Zero-Drift series, Current Sense Amplifier, 1 Circuit, Rail-to-Rail output, 35 kHz bandwidth, SC-70-6 package, -40°C to 125°C.

$1.54Ref. price · indicative, final on quote
INA186A3IDCKR datasheet
Packaging6-TSSOP, SC-88, SOT-363
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

INA186A3IDCKR 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 product35 kHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate0.3V/µs
Case6-TSSOP, SC-88, SOT-363
Number of circuits1

Product details

35 kHz bandwidth — enough for DC rail monitoring and load-step detection

The INA186A3IDCKR: With a gain-bandwidth product of 35 kHz and a 0.3 V/µs slew rate, this amplifier is sized for monitoring DC current on power rails, battery charge/discharge profiles, and load-step events where the bandwidth of interest stays below a few kilohertz. It is not intended for high-frequency switching-current waveforms — that role belongs to parts like the INA254A1IPWAR with its 350 kHz bandwidth. For a motor-drive bus monitor or a telecom line-card current sensor, the 35 kHz corner is adequate and keeps noise from aliasing into the measurement.

SC-70-6 package — board-area conscious

Housed in a 6-pin SC-70 (SOT-363) package with surface-mount termination, this amplifier fits into space-constrained layouts such as battery-pack monitor PCBs, handheld instruments, and sensor modules. The SC-70-6 footprint is common enough that layout libraries and solder-paste stencils are widely available. No special thermal management is needed at 48 µA supply current.

The 125°C maximum junction temperature allows placement near hot components like MOSFETs or inductors without derating the supply current.

Frequently asked questions

What is the difference between INA186 and INA190?

The INA190 is a similar zero-drift current sense amplifier family but offers a wider bandwidth option (up to 40 kHz vs 35 kHz for the INA186) and a lower quiescent current (typically 30 µA vs 48 µA). The INA186A3IDCKR provides a fixed gain of 100 V/V, while the INA190 family includes multiple gain options. For a direct replacement, check the gain and bandwidth requirements of your application.

Can the INA186A3IDCKR be used as a replacement for the INA186A2IDCKR?

The INA186A3IDCKR is a gain-option variant within the same INA186 family. The A3 version has a fixed gain of 100 V/V, while the A2 version has a gain of 50 V/V. They are pin-compatible and share the same package and supply range, so the A3 can replace the A2 if the higher gain is acceptable or if the external shunt resistor is adjusted to maintain the same output swing.