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Texas Instruments INA210CQDCKRQ1
- Part No.:
- INA210CQDCKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
INA210CQDCKRQ1.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,211
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Product details
Overview
INA210CQDCKRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive current-shunt monitor with zero-drift architecture, designed for high-accuracy bidirectional current sensing in low-side or high-side configurations. It features a fixed gain of 200 V/V, ±100 µV maximum offset voltage, –0.3 V to 26 V wide common-mode input range, and operates from 2.7 V to 26 V supply. It enables 10-mV full-scale shunt measurements in body control modules and motor control systems.
For engineers reviewing the INA210CQDCKRQ1 datasheet, INA210CQDCKRQ1 pinout, INA210CQDCKRQ1 application, or INA210CQDCKRQ1 equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated SC70-6 pin functions, confirmed automotive-grade functional safety capability, and two rigorously cross-checked alternative parts for current-sense amplifier selection.
Technical Context
The INA210CQDCKRQ1 implements a zero-drift chopper-stabilized amplifier topology to achieve ±100 µV max offset and 0.5 µV/°C max drift over –40°C to +125°C. Its differential input stage supports bidirectional current flow and operates independently of supply voltage across its –0.3 V to 26 V common-mode range.
It delivers 200 V/V fixed gain with ±1% max gain error over temperature, 14 kHz bandwidth at 10 pF load, and 0.4 V/µs slew rate. Quiescent current remains ≤100 µA, enabling always-on monitoring in power-constrained automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 200 V/V - sets output voltage = 200 × shunt voltage drop, enabling precise scaling for 10-mV full-scale sensing |
| Offset voltage (max) | ±100 µV - allows accurate measurement down to 10-mV shunt drops without calibration |
| Common-mode range | –0.3 V to 26 V - supports direct sensing on 12-V and 24-V automotive rails, including negative transients |
| Supply voltage range | 2.7 V to 26 V - powers from low-voltage microcontrollers while interfacing with high-voltage battery domains |
| Quiescent current (max) | 100 µA - enables continuous current monitoring in always-on vehicle modules without excessive battery drain |
| Gain error (max) | ±1% over temperature - ensures stable scaling across automotive ambient and junction temperature extremes |
| Bandwidth | 14 kHz - supports dynamic current monitoring in motor control and valve actuation loops |
Pinout & Package
INA210CQDCKRQ1 is housed in a 6-pin SC70 package (2.00 mm × 1.25 mm body), optimized for space-constrained automotive PCB layouts and thermally efficient mounting on small copper areas.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF (Pin 1) | Reference input | Accepts 0 V to V+ reference voltage; determines output common-mode level and affects CMRR if driven by high impedance |
| GND (Pin 2) | Ground reference | Return path for internal circuitry and output stage; must be connected to system ground with low-inductance trace |
| V+ (Pin 3) | Power supply | Single 2.7–26 V supply input; requires local 0.01–0.1 µF bypass capacitor to GND for stability |
| IN+ (Pin 4) | Differential input (+) | Connects to supply side of shunt resistor; senses high-side or low-side current direction based on configuration |
| IN– (Pin 5) | Differential input (–) | Connects to load side of shunt resistor; forms differential pair with IN+ to reject common-mode noise |
| OUT (Pin 6) | Voltage output | Provides rail-to-rail capable analog output (GND + 5 mV to V+ – 50 mV); drives ADC inputs or feedback loops directly |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C operation in automotive ECUs, meeting reliability and stress-test requirements for body electronics |
| Zero-drift architecture | Enables stable 10-mV full-scale shunt sensing without periodic recalibration, reducing thermal drift-induced errors in long-duration monitoring |
| Bidirectional current support | Measures both charging and discharging currents in battery management and regenerative braking circuits without polarity reversal |
| Functional safety capability | Includes documentation (FIT rate, failure modes) to support ISO 26262 ASIL-B system-level safety analysis in motor control and stability systems |
| High CMRR (105 dB min) | Rejects noise from noisy 12-V/24-V power rails, preserving signal integrity in electric power steering and valve driver environments |
Applications
| Body Control Module | Motor Control |
|---|---|
Use Scenario: Monitoring current to door locks, seat actuators, and lighting loads in centralized body controllers. IC Role / Device Role / Timing Role: Current-shunt monitor providing real-time load status and overcurrent detection for fault logging and PWM duty-cycle adaptation. Use Value: ±100 µV offset enables detection of <100 mA faults on 100-mΩ shunts, improving diagnostic coverage for Class 2 CAN-connected modules. | Use Scenario: Sensing phase current in 12-V BLDC fans or HVAC blowers in passenger compartment systems. IC Role / Device Role / Timing Role: High-side current sensor feeding analog input of motor control MCU for closed-loop torque regulation and stall detection. Use Value: 14 kHz bandwidth captures transient current spikes during commutation, supporting fast-response protection without external filtering. |
| Electronic Stability Control | Valve Control |
Use Scenario: Measuring solenoid coil current in ABS hydraulic modulators to verify actuator engagement timing and force. IC Role / Device Role / Timing Role: Low-latency current monitor interfaced to safety-critical MCU for real-time solenoid health assessment and fail-safe shutdown. Use Value: –0.3 V to 26 V common-mode range accommodates negative flyback transients during solenoid de-energization, preventing input damage. | Use Scenario: Monitoring fuel injector or EGR valve coil current in engine control units for precise pulse-width validation. IC Role / Device Role / Timing Role: Bidirectional shunt amplifier capturing turn-on/turn-off current profiles to infer valve position and detect partial clogging. Use Value: 200 V/V gain scales 5-mV shunt drops to 1 V output, matching typical 12-bit ADC reference ranges without external amplification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA211CQDCKRQ1 | Fixed gain = 500 V/V; same offset (±100 µV), CMRR (105 dB), and package; higher gain increases sensitivity but reduces dynamic range | Better suited for sub-5-mV shunt drops; less tolerant of shunt tolerance and layout parasitics due to higher gain | Select when measuring very low currents (<50 mA) with tight accuracy budgets and controlled thermal environment |
| INA213CQDCKRQ1 | Fixed gain = 50 V/V; same offset, CMRR, and package; lower gain improves noise immunity and headroom for larger shunt drops | Optimized for 20–60 mV shunt drops; supports higher current ranges with reduced self-heating in high-power valves | Select when prioritizing robustness against PCB layout variation, EMI, and thermal drift in high-current solenoid drivers |
Compared with INA210CQDCKRQ1, INA211CQDCKRQ1 offers higher resolution for microamp-level fault detection but narrower full-scale range, while INA213CQDCKRQ1 trades sensitivity for improved signal-to-noise ratio and thermal stability in high-current automotive actuators.
Availability
INA210CQDCKRQ1 is available at Aetrix Electronics and suitable for body control module, motor control, and electronic stability control applications requiring stable component supply across automotive production lifecycles.
Supply support for INA210CQDCKRQ1 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 INA21x-Q1 product line was engineered specifically for AEC-Q100-compliant current sensing in harsh-temperature automotive subsystems, emphasizing zero-drift precision, wide common-mode operation, and functional safety readiness.
FAQ
What is the maximum common-mode voltage supported by the INA210CQDCKRQ1?
The INA210CQDCKRQ1 supports a common-mode input voltage range of –0.3 V to 26 V. This allows direct connection to 12-V and 24-V automotive battery rails, including handling of negative transients during load dump or inductive kickback events. Operation beyond 26 V is not recommended and may cause permanent damage per absolute maximum ratings.
Does the INA210CQDCKRQ1 support bidirectional current measurement?
Yes, the INA210CQDCKRQ1 supports bidirectional current measurement. Its differential input architecture and rail-to-rail output swing enable accurate sensing of current flow in either direction across the shunt resistor. This is essential for applications like regenerative braking monitoring and dual-direction solenoid control where polarity reversal occurs.
What is the gain accuracy specification for the INA210CQDCKRQ1 over temperature?
The INA210CQDCKRQ1 has a maximum gain error of ±1% over the full operating temperature range of –40°C to +125°C. This specification applies to the C-grade version (as indicated by the 'C' in INA210CQDCKRQ1) and ensures consistent scaling between shunt voltage and output voltage across automotive thermal extremes.
Can the INA210CQDCKRQ1 be used in high-side current sensing configurations?
Yes, the INA210CQDCKRQ1 is explicitly designed for both high-side and low-side current sensing. Its wide –0.3 V to 26 V common-mode input range and supply-independent operation allow it to accurately measure current on the high side of a load-even when the shunt is placed between the power source and the load-without requiring level-shifting circuitry.
What package type and pin count does the INA210CQDCKRQ1 use?
The INA210CQDCKRQ1 uses a 6-pin SC70 package (DCK) with nominal dimensions of 2.00 mm × 1.25 mm. This compact surface-mount package supports high-density automotive PCB layouts and provides thermal performance characterized by 227.3°C/W junction-to-ambient resistance under standard JEDEC conditions.
INA210CQDCKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Zero-Drift
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- Single-Ended
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- 14 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 28 µA
- Voltage - Input Offset:
- 0.55 µV
- Current - Supply:
- 65µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 26 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-6
INA210CQDCKRQ1 FAQ
1.How can I place an order for INA210CQDCKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for INA210CQDCKRQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for INA210CQDCKRQ1 reliable?
The price and inventory of INA210CQDCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA210CQDCKRQ1 is usually 5 days.
3.What payment methods are accepted for INA210CQDCKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA210CQDCKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA210CQDCKRQ1?
INA210CQDCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA210CQDCKRQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for INA210CQDCKRQ1?
For technical support, including INA210CQDCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA210CQDCKRQ1 requirements.
6.How does Aetrix verify that INA210CQDCKRQ1 is sourced from the original manufacturer or authorized distributors?
All INA210CQDCKRQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that INA210CQDCKRQ1 meets industry standards.
7.What is the process for return or replacement of INA210CQDCKRQ1?
All INA210CQDCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with INA210CQDCKRQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The INA210CQDCKRQ1 part is unused and in its original packaging.
Return procedure for INA210CQDCKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
INA210CQDCKRQ1 Tags
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