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Texas Instruments INA310B3IDGKR — Analog & Data Acquisition

TI INA310B3IDGKR Current Sense Amplifier, Zero-Drift, 1 MHz

MPNINA310B3IDGKR
End of Life

Texas Instruments Zero-Drift series, INA310B3IDGKR, current sense amplifier, single-ended output, 1 MHz -3dB bandwidth, 2.5 V/µs slew rate, 2.7 V to 20 V supply, -40°C to 125°C, 8-VSSOP package.

$2.83Ref. price · indicative, final on quote
Texas Instruments INA310B3IDGKR datasheet (PDF)
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHSROHS3 Compliant
SeriesZero-Drift
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

INA310B3IDGKR specifications
ParameterValue
SeriesZero-Drift
Output typeSingle-Ended
MountingSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset30 µV
Voltage - supply span2.7 V
Current - supply1.6mA
Current - input bias20 µA
Operating temperature-40°C ~ 125°C (TA)
-3db bandwidth1 MHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate2.5V/µs
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)
Number of circuits1

Product details

What this current-sense amplifier brings to the board

The Texas Instruments INA310B3IDGKR is a zero-drift current-sense amplifier in an 8-VSSOP package. Its -4-V to 110-V common-mode input range covers high-side and low-side sensing. The 1 MHz bandwidth and 2.5 V/µs slew rate capture current waveforms in switching power supplies and motor drives. The 30 µV input offset voltage keeps readings accurate at millivolt-level shunt drops.

Supply and temperature — where it fits

The 1.6 mA supply current keeps total draw modest in multi-channel designs.

Frequently asked questions

What is the bandwidth of the INA310B3IDGKR?

The -3 dB bandwidth is 1 MHz, with a slew rate of 2.5 V/µs. This is sufficient for capturing current waveforms in switching power supplies and motor drives operating at typical PWM frequencies.

Is the INA310B3IDGKR RoHS compliant?

Yes, it is ROHS3 compliant.

What is the closest functional equivalent to the INA310B3IDGKR?

A close functional peer is the INA254A1IPWAR, also a zero-drift current-sense amplifier in the same family. The INA254A1IPWAR has a lower bandwidth of 350 kHz and a slightly lower slew rate of 2.4 V/µs, with a similar supply range and temperature grade. If the application needs the full 1 MHz bandwidth, the INA310B3IDGKR is the better fit.