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INA240A1DR

TI INA240A1DR Current Sense Amplifier, 400 kHz, 2.7-5.5 V

MPNINA240A1DR
Active

Texas Instruments INA240A1DR current-sense amplifier, 400 kHz -3dB bandwidth, 2V/µs slew rate, 5 µV input offset, 2.7-5.5 V supply, -40 to 125°C, 8-SOIC package, Tape & Reel.

$3.3900Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

INA240A1DR specifications
ParameterValue
MountingSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset5 µV
Voltage - supply span5.5 V
Current - supply1.8mA
Current - input bias90 µA
Operating temperature-40°C~125°C
-3db bandwidth400 kHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate2V/µs
Case8-SOIC (0.154\", 3.90mm Width)
Number of circuits1

Product details

Current-sense amplifier for shunt-based monitoring

It measures voltage across a shunt resistor and outputs a ground-referenced signal proportional to the load current. The 400 kHz bandwidth and 2V/µs slew rate keep the output responsive to fast current transients in switching power supplies and motor drives.

Low offset and bias current for accurate measurement

The low offset lets the part resolve millivolt-level shunt drops without calibration, which matters when the full-scale shunt voltage is only 50-100 mV. Supply current is 1.8 mA — light enough for always-on sensing nodes.

Package and sourcing

Surface-mount, standard SOIC-8 footprint.

Frequently asked questions

What is the bandwidth of INA240A1DR?

The -3dB bandwidth is 400 kHz.

What is INA240A1DR's listed slew rate?

The slew rate is 2V/µs.