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Texas Instruments INA310B2IDGKR — Analog & Data Acquisition

TI INA310B2IDGKR Current Sense Amplifier, 1.3 MHz

MPNINA310B2IDGKR
End of Life

Texas Instruments INA310B2IDGKR Zero-Drift current sense amplifier, single-ended output, 1.3 MHz bandwidth, 2.5 V/µs slew rate, 55 µV input offset, 20 µA input bias, 1.6 mA supply, 2.7–20 V supply, -40–125°C, 8-VSSOP package.

$2.83Ref. price · indicative, final on quote
Texas Instruments INA310B2IDGKR 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

INA310B2IDGKR specifications
ParameterValue
SeriesZero-Drift
Output typeSingle-Ended
MountingSurface Mount
Amplifier typeCurrent Sense
Voltage - input offset55 µV
Voltage - supply span2.7 V
Current - supply1.6mA
Current - input bias20 µA
Operating temperature-40°C ~ 125°C (TA)
-3db bandwidth1.3 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

High-side current sense with zero-drift precision

The Texas Instruments INA310B2IDGKR is a zero-drift current sense amplifier designed for high-side shunt measurements across a wide common-mode range. Its 1.3 MHz bandwidth and 2.5 V/µs slew rate support switching-frequency monitoring in motor drives and power converters. The 55 µV input offset voltage, combined with the zero-drift architecture, keeps measurement error low even at small shunt drops, which matters when sizing the sense resistor for minimal power loss.

The amplifier operates from 2.7 V to 20 V single supply, covering common 3.3 V, 5 V, and 12 V rails.

RoHS3 compliant. If you are qualifying this for a new BOM, the active status means no near-term supply disruption.

Frequently asked questions

What is the -3dB bandwidth of INA310B2IDGKR?

The -3dB bandwidth is 1.3 MHz, with a slew rate of 2.5 V/µs. This is sufficient for monitoring switching frequencies in most motor drives and DC-DC converters without aliasing.