INA214AIDCKR-Q1 - 26V Bi-Dir Current Sense Amp, SC-70-6 | TI
MPN: INA214AIDCKR-Q1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1 | $1.00 |
| 10 | $1 | $10.00 |
| 100 | $1 | $100.00 |
| 500 | $1 | $500.00 |
| 1,000 | $1 | $1,000.00 |
Drop-in alternatives for INA214AIDCKR-Q1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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INA214AIDCKR
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View Datasheet βINA213AIDCKR-Q1
β‘ Same Packageπ Reference alternative (not in catalog)
INA210AIDCKR-Q1
β‘ Same Packageπ Reference alternative (not in catalog)
INA214AIDCKR-Q1 Maximum Ratings & Electrical Characteristics
| Product Type | Current shunt monitor (current sense amplifier) |
| Channels | 1 (single-ended output) |
| Gain (INA214) | 100 V/V |
| Common-Mode Voltage Range | -0.3 V to 26 V |
| Input Configuration | High-side or low-side, bi-directional |
| Offset Voltage | Β±35 uV (maximum, INA21x family) |
| Architecture | Zero-drift (auto-zeroing) |
| Supply Voltage (VS) | [DATA_NEEDED: VS range] |
| Quiescent Current | [DATA_NEEDED: quiescent current] |
| Bandwidth | [DATA_NEEDED: bandwidth at gain 100] |
| Reference Pin (VREF) | Yes, enables bi-directional current monitoring |
| Package | SC-70-6 (DCK) |
| Mounting Type | Surface Mount |
| Qualification | AEC-Q100 (automotive) |
| Operating Temperature | [DATA_NEEDED: temperature range] |
| RoHS Status | Compliant |
| Typical Applications | Overcurrent protection, precision current measurement, closed-loop feedback |
INA214AIDCKR-Q1 Pin Configuration
| Pin 1 | IN+ β Shunt high-side sense input |
| Pin 2 | GND β Ground |
| Pin 3 | VREF β Reference input for bi-directional output offset |
| Pin 4 | OUT β Analog voltage output proportional to shunt current |
| Pin 5 | VS β Power supply input |
| Pin 6 | IN- β Shunt low-side sense input |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
INA214AIDCKR-Q1 is suitable for 6 applications: Automotive Battery Current Monitoring, Overcurrent Protection, Telecom Base Station Power Supervision, Closed-Loop Motor Drive Current Control, DC-DC Converter Current-Mode Feedback, Solar and IoT Power Optimization.
Automotive Battery Current Monitoring
The INA214AIDCKR-Q1's AEC-Q100 qualification and -0.3 V to 26 V common-mode range make it a natural fit for 12 V automotive battery sense lines. Placed across a milliohm shunt in the negative or positive battery path with the VREF pin driven from a rail divider, it produces a ground-referenced output that distinguishes charge from discharge current. The zero-drift architecture keeps offset error negligible even after years of temperature cycling in the engine bay.
Recommended
Overcurrent Protection
For overcurrent protection on 24 V industrial and telecom rails, the INA214AIDCKR-Q1 amplifies a small shunt drop by 100 V/V into a comparator-friendly output. Its common-mode range tolerates fault transients up to 26 V, and the fast voltage-output response lets a comparator or MCU ADC trip within microseconds. Unlike hall sensors, the shunt-based approach needs no supply-side isolation and exhibits no magnetic hysteresis, so trip thresholds remain stable over life.
Recommended
Telecom Base Station Power Supervision
Telecom -48 V and 24 V distribution boards benefit from the INA214's supply-independent 26 V common-mode rating, meaning the shunt can sit on a high-voltage rail while the amplifier runs from a 5 V logic supply. The zero-drift input stage delivers the DC precision needed for amp-hour consumption accounting, and the SC-70-6 footprint fits dense power-entry card layouts where board area is scarce.
Recommended
Closed-Loop Motor Drive Current Control
In brushed and BLDC motor controllers, the INA214AIDCKR-Q1 senses low-side phase or rail current for torque-loop feedback. The 100 V/V gain suits 5 mOhm to 20 mOhm shunts typical of 10 A to 30 A drives, while the zero-drift topology prevents offset-induced torque ripple at light load. Designers should verify bandwidth against PWM ripple frequency and, for aggressive dv/dt, consider the INA240A1QPWRQ1 with enhanced PWM rejection.
Recommended
DC-DC Converter Current-Mode Feedback
The INA214AIDCKR-Q1 provides averaged inductor current feedback for controllers requiring an external current sense amplifier. Its wide common-mode range supports boost, SEPIC, and high-side buck sensing where the shunt rides on the switching node rail. The low offset (Β±35 uV family maximum) preserves light-load current-loop accuracy, improving transient response and limiting current accuracy in applications such as the LM5117-based controllers.
Recommended
Solar and IoT Power Optimization
Solar charge controllers and battery-powered IoT nodes use the INA214AIDCKR-Q1 for precision energy accounting. The very low offset enables measurement of microamp to milliamp sleep currents when paired with a larger shunt, while the 26 V common-mode limit covers 12 V and 24 V panel strings. The 6-pin SC-70 package and simple resistor-periphery design keep BOM count low for cost-sensitive high-volume nodes.
Recommended
Recommended Products Summary
Engineering reference data for INA214AIDCKR-Q1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | INA214AIDCKR | INA213AIDCKR-Q1 | AD8418WBRZ-RL |
|---|---|---|---|---|
| Package | SC-70-6 (DCK) | SC-70-6 (DCK) - same | SC-70-6 (DCK) - same | MSOP-8 - different |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Gain | 100 V/V | 100 V/V | 50 V/V | 20 V/V |
| Common-Mode Range | -0.3 V to 26 V | -0.3 V to 26 V | -0.3 V to 26 V | -2 V to 70 V |
| Qualification | AEC-Q100 (Q1) | Commercial (not Q1) | AEC-Q100 (Q1) | AEC-Q100 automotive |
| Architecture | Zero-drift | Zero-drift | Zero-drift | [DATA_NEEDED] |
| Bi-directional Output | Yes (VREF pin) | Yes | Yes | Yes (REF pin) |
| Price Tier (1 pc, as of 2026-08-29) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- AEC-Q100 automotive qualification (vs INA214AIDCKR)
- Zero-drift offset stability (vs AD8418WBRZ-RL)
- Smallest footprint in the compare set (vs AD8418WBRZ-RL)
Design Notes
Route Kelvin connections directly from the shunt resistor pads to IN+ and IN-. Do not share the shunt traces with load current paths, since milliohms of trace resistance becomes tens of millivolts of gain error at high current. Place the INA214AIDCKR-Q1 within a few millimeters of the shunt; the 6-pin SC-70 footprint makes this practical even in dense layouts.
The VREF pin sets the output baseline for bi-directional sensing. Drive it from a low-impedance source such as an op-amp buffer or a precision reference divider; a high-impedance divider directly on VREF will be loaded by the reference input and shift your zero-current reading. Any VREF error passes to the output at unity gain, so budget reference accuracy against your current measurement target.
Keep the shunt drop modest: with gain of 100 V/V, a 50 mV full-scale shunt drop yields 5 V of output, suitable for 5 V ADCs, while 25 mV suits 3.3 V ADCs with headroom. Size shunt power as I^2 x R and derate for thermal rise. The 26 V common-mode limit must never be exceeded even during load-dump or fault transients - add series resistance and clamping on the sense lines in automotive environments.
Compliance Information
AEC-Q100 qualification confirmed via TI.com INA214-Q1 product page. RoHS compliance per standard TI packaging; REACH and halogen-free status require TI quality portal confirmation.
