Texas Instruments INA286AQDGKRQ1

Overview

INA286AQDGKRQ1 from Texas Instruments is an automotive-grade, bidirectional voltage-output current shunt monitor optimized for high-accuracy sensing in EV/HEV battery management and electric power steering systems. It features a 100 V/V fixed gain, ±20 μV offset voltage, 140 dB CMRR, –14 V to +80 V common-mode input range, and operates from a 2.7-V to 18-V supply with ≤900 μA quiescent current.

For engineers reviewing the INA286AQDGKRQ1 datasheet, INA286AQDGKRQ1 pinout, INA286AQDGKRQ1 application, or INA286AQDGKRQ1 equivalent, this device supports low- or high-side sensing in AEC-Q100 Grade 1 (–40°C to +125°C) automotive environments with functional safety documentation support and zero-drift architecture enabling 10-mV full-scale shunt measurements.

Technical Context

The INA286AQDGKRQ1 uses a zero-drift chopper-stabilized amplifier architecture to achieve ±20 μV offset and 0.3 μV/°C drift over –40°C to +125°C, enabling precise bidirectional current measurement at low shunt voltages. Its switched-capacitor input structure delivers 140 dB DC CMRR but introduces discrete-time step response behavior, with transient recovery within 15 μs after common-mode disturbances.

It supports unidirectional or bidirectional operation via configurable REF1/REF2 pins-ground-referenced, V+-referenced, or externally biased-to set output quiescent level between 0 V and 9 V. The device accepts differential inputs up to ±5 V while maintaining accuracy across its –14 V to +80 V common-mode range, independent of supply voltage.

Key Specifications

Pinout & Package

VSSOP-8 package (3.00 mm × 3.00 mm body size), thermally enhanced for automotive PCB layouts with limited space and airflow.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar current shunt monitor applications.

Compared with INA286AQDGKRQ1, INA240A1QDRQ1 offers superior offset but sacrifices negative common-mode headroom and reference configurability, while MAX40056ATA+T reduces supply flexibility and automotive compliance-making INA286AQDGKRQ1 optimal for AEC-Q100-compliant, bidirectional, wide-CM-range designs.

Availability

INA286AQDGKRQ1 is available at Aetrix Electronics and suitable for EV battery management, electric power steering, and brake-by-wire systems requiring stable component supply across multi-year automotive production programs.

Supply support for INA286AQDGKRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with deep expertise in automotive-grade signal conditioning and power management ICs.

The INA28x-Q1 product line was designed specifically for high-accuracy, high-reliability current sensing in automotive electrification systems-including traction inverters, battery monitors, and ADAS actuators-where wide common-mode range and AEC-Q100 compliance are mandatory.

FAQ

What is the gain setting of the INA286AQDGKRQ1?

The INA286AQDGKRQ1 has a fixed gain of 100 V/V, as confirmed in the Electrical Characteristics table (Section 6.5) and Features list of the official TI datasheet SBOS554C. This gain is laser-trimmed at wafer test and remains stable across temperature and supply voltage variations. The INA286AQDGKRQ1 is part of the INA28x-Q1 family where each variant is uniquely identified by gain: INA282-Q1 = 50 V/V, INA286-Q1 = 100 V/V, INA283-Q1 = 200 V/V, etc. No external resistors or configuration pins alter this value.

Does the INA286AQDGKRQ1 support bidirectional current sensing?

Yes, the INA286AQDGKRQ1 supports true bidirectional current sensing through its dual reference inputs (REF1 and REF2). By applying appropriate voltages to these pins-such as connecting both to a mid-supply reference-the output quiescent level can be set to any value between 0 V and 9 V, enabling symmetric positive/negative output swing relative to that bias point. This capability is explicitly described in Section 7.4.1.2 (Bidirectional Operation) of the TI datasheet SBOS554C and verified in Figure 7-4 (External Reference Output).

What package type does the INA286AQDGKRQ1 use?

The INA286AQDGKRQ1 uses the VSSOP-8 package (body size 3.00 mm × 3.00 mm), as specified in the Device Information table and Mechanical, Packaging, and Orderable Information section (Section 13) of the TI datasheet SBOS554C. The "DGK" in the part number denotes this VSSOP-8 variant, distinct from the SOIC-8 ("D") version. This thermally optimized package supports high-density automotive PCB layouts and meets JEDEC MO-178 standards.

Is the INA286AQDGKRQ1 qualified for automotive applications?

Yes, the INA286AQDGKRQ1 is fully AEC-Q100 qualified for automotive use, specifically meeting Grade 1 requirements with an ambient operating temperature range of –40°C to +125°C. It also carries HBM ESD classification Level H2 (±2 kV) and CDM Level C5 (±750 V), as documented in Section 1 (Features) and Section 6.2 (ESD Ratings) of the TI datasheet SBOS554C. These qualifications are validated per AEC-Q100-002 and AEC-Q100-011 standards.

What is the maximum common-mode voltage the INA286AQDGKRQ1 can handle?

The INA286AQDGKRQ1 supports a common-mode input voltage range of –14 V to +80 V, as specified in Absolute Maximum Ratings (Section 6.1), Recommended Operating Conditions (Section 6.3), and Electrical Characteristics (Section 6.5) of the TI datasheet SBOS554C. This range enables direct connection to battery terminals, motor phases, or 48-V/400-V bus rails without external level-shifting circuitry-and withstands automotive fault conditions including reverse battery and load-dump transients.