INA214AIDCKR - 26V Bi-Directional Current Sense Amp | TI
MPN: INA214AIDCKR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.25 | $1.25 |
| 10 | $1.12 | $11.20 |
| 100 | $0.95 | $95.00 |
| 500 | $0.82 | $410.00 |
| 1,000 | $0.74 | $740.00 |
Drop-in alternatives for INA214AIDCKR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
INA214AIDCKT
✅ Drop-In📋 Reference alternative (not in catalog)
INA210AIDCKR
✅ Drop-In📋 Reference alternative (not in catalog)
INA211AIDCKR
✅ Drop-In📋 Reference alternative (not in catalog)
INA212AIDCKR
✅ Drop-In📋 Reference alternative (not in catalog)
INA213AIDCKR
✅ Drop-In📋 Reference alternative (not in catalog)
INA214AIDCKR Maximum Ratings & Electrical Characteristics
| Common-Mode Voltage Range | -0.3 V to 26 V |
| Input Offset Voltage (max) | ±60 µV |
| Supply Voltage Range | 2.7 V to 26 V |
| Quiescent Current | [DATA_NEEDED: quiescent current] |
| Bandwidth | [DATA_NEEDED: bandwidth] |
| Output Type | Voltage |
| Number of Circuits | 1 |
| Amplifier Type | Current Sense |
| Bi-Directional | Yes |
| Zero-Drift | Yes |
| Package | SC-70-6 (DCK) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40°C to +125°C |
| RoHS Status | Compliant |
| Number of Pins | 6 |
INA214AIDCKR Pin Configuration
| Pin 1 | VS — Supply voltage |
| Pin 2 | OUT — Output voltage |
| Pin 3 | GND — Ground |
| Pin 4 | IN- — Negative input (shunt) |
| Pin 5 | IN+ — Positive input (shunt) |
| Pin 6 | REF — Reference voltage for bi-directional operation |
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 is suitable for 6 applications: Overcurrent Protection, Battery Monitoring, Motor Control, Power Supply Monitoring, Automotive Load Detection, Industrial Process Control.
Overcurrent Protection
The INA214AIDCKR is used to monitor current in power supply lines and trigger protection circuits when current exceeds a threshold. Its wide common-mode range of -0.3V to 26V allows sensing on high-side rails up to 26V, and the fast response time ensures timely shutdown. The output can be compared with a reference voltage to generate an overcurrent signal, protecting downstream components from damage.
Recommended
Battery Monitoring
In battery-powered systems, the INA214AIDCKR measures charge and discharge currents bi-directionally. Its zero-drift architecture ensures accurate measurement over time and temperature, which is critical for fuel gauging. The low quiescent current helps extend battery life. The output can be fed to an ADC for precise state-of-charge estimation.
Recommended
Motor Control
The INA214AIDCKR is used in motor control loops to sense phase or DC-link currents. Its bi-directional capability allows detection of regenerative currents. The wide common-mode range accommodates the varying voltages in motor drives. The output can be used for closed-loop torque control or overcurrent protection, improving system reliability.
Recommended
Power Supply Monitoring
In power supplies, the INA214AIDCKR monitors output current for load regulation and protection. Its high accuracy enables precise current limiting. The small SC-70 package is ideal for space-constrained PSU designs. The output can be used for telemetry or to adjust the feedback loop for constant current operation.
Recommended
Automotive Load Detection
The INA214AIDCKR is used in automotive systems to detect faults in loads such as lamps, solenoids, and motors. Its wide common-mode range handles 12V and 24V systems, and the -40°C to +125°C temperature range meets automotive requirements. The bi-directional capability helps detect short circuits and open loads.
Recommended
Industrial Process Control
In industrial automation, the INA214AIDCKR monitors current in 4-20mA loops and actuator drives. Its precision and low drift ensure accurate process control. The wide common-mode range allows sensing on high-side rails up to 26V. The output can be interfaced with PLCs or ADCs for monitoring and control.
Recommended
Recommended Products Summary
Engineering reference data for INA214AIDCKR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | INA214AIDCKT | INA210AIDCKR | INA211AIDCKR | INA212AIDCKR | INA213AIDCKR |
|---|---|---|---|---|---|---|
| Package | SC-70-6 (DCK) | SC-70-6 (DCK) | SC-70-6 (DCK) | SC-70-6 (DCK) | SC-70-6 (DCK) | SC-70-6 (DCK) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Common-Mode Voltage Range | -0.3V to 26V | -0.3V to 26V | -0.3V to 26V | -0.3V to 26V | -0.3V to 26V | -0.3V to 26V |
| Input Offset Voltage (max) | ±60 µV | ±60 µV | ±35 µV | ±60 µV | ±60 µV | ±60 µV |
| Gain | 100 V/V | 100 V/V | 200 V/V | 500 V/V | 1000 V/V | 50 V/V |
| Supply Voltage Range | 2.7V to 26V | 2.7V to 26V | 2.7V to 26V | 2.7V to 26V | 2.7V to 26V | 2.7V to 26V |
| Bi-Directional | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
Key Differentiators
- Wide common-mode range of -0.3V to 26V (vs INA226AIDGSR)
- Bi-directional measurement capability (vs INA210AIDCKR)
- Zero-drift architecture (vs MAX4080TASA+)
Design Notes
Place the shunt resistor close to the INA214 inputs to minimize parasitic inductance and resistance. Use Kelvin connections to the shunt to avoid errors from trace resistance. Keep the input traces short and shielded if possible. The SC-70 package is small, so ensure adequate copper pour for thermal and electrical performance.
Ensure the common-mode voltage does not exceed 26V or go below -0.3V, as this can damage the device. Also, verify that the supply voltage is within 2.7V to 26V. The REF pin must be biased correctly for bi-directional operation; leaving it floating can cause inaccurate output. Use a low-impedance reference source.
The output of the INA214 is a voltage proportional to the sensed current. To avoid loading the output, use a high-impedance load such as an ADC input or a buffer. If driving a long trace, add a series resistor to dampen reflections. The bandwidth is sufficient for most DC and low-frequency applications, but for high-speed sensing, consider a faster amplifier.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified, but operates over automotive temperature range.
