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Texas Instruments INA283AQDRQ1
- Part No.:
- INA283AQDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
INA283AQDRQ1.pdf
- Description:
- IC CURRENT MONITOR 0.4% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,561
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Product details
Overview
INA283AQDRQ1 from Texas Instruments is an automotive-grade, bidirectional, voltage-output current shunt monitor with 200 V/V fixed gain, –14 V to +80 V common-mode input range, ±20 μV offset voltage, and 140 dB CMRR. It operates from a 2.7-V to 18-V supply, draws ≤900 μA quiescent current, and supports high-accuracy low-side or high-side sensing in EV battery management systems.
For engineers reviewing the INA283AQDRQ1 datasheet, INA283AQDRQ1 pinout, INA283AQDRQ1 application, or INA283AQDRQ1 equivalent, this page delivers verified technical context, package-specific pin functions, real-world automotive use cases, and validated alternative options - all grounded in TI's SBOS554C production data sheet.
Technical Context
The INA283AQDRQ1 employs a zero-drift architecture enabling 10 mV full-scale shunt sensing with ±1.4% max gain error and 0.3 μV/°C offset drift. Its switched-capacitor input structure delivers 140 dB CMRR but introduces discrete-time step response behavior, with transient recovery within 15 μs after common-mode disturbances.
It supports unidirectional (ground- or V+-referenced output) and bidirectional operation via REF1/REF2 pins, where the average reference voltage must stay between GND and min(V+, 9 V). The device is AEC-Q100 Grade 1 qualified (–40°C to +125°C ambient) and functional-safety capable per ISO 26262 system-level design guidance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 200 V/V - sets output = 200 × (V+IN − V−IN) + VREF; enables precise low-current detection with 10 mV shunt drops |
| Common-Mode Range | –14 V to +80 V - supports direct connection to 12-V/48-V battery rails and withstands automotive transients without external protection |
| Offset Voltage | ±20 μV max - ensures <0.1% error at 10 mV sense voltage; critical for high-resolution BMS current monitoring |
| CMRR | 140 dB - rejects noise from high-voltage motor drives or DC-DC converters in EPS and ESC systems |
| Quiescent Current | 900 μA max - allows always-on monitoring in body control modules with minimal standby power impact |
| Supply Voltage | 2.7 V to 18 V - compatible with 3.3-V microcontrollers and 12-V vehicle power domains |
| Operating Temperature | –40°C to +125°C - meets AEC-Q100 Grade 1 requirements for under-hood and traction inverter applications |
Pinout & Package
The INA283AQDRQ1 is available in SOIC-8 (4.90 mm × 3.91 mm) and VSSOP-8 (3.00 mm × 3.00 mm) packages. Both variants share identical pinout and functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: –IN | Analog input | Connects to negative side of shunt resistor; differential input node with 6 kΩ impedance |
| 2: GND | Analog ground | Reference for internal circuitry and output swing; must be low-impedance path to system ground |
| 3: REF2 | Analog reference input | One terminal of internal reference divider; sets quiescent output when paired with REF1 |
| 4: NC | No connect | Not internally bonded; leave floating or tie to GND for mechanical stability |
| 5: OUT | Analog output | Voltage output = G × (V+IN − V−IN) + (REF1 + REF2)/2; drives 10-kΩ loads with ≤0.4-V headroom to V+ |
| 6: V+ | Power supply | Single 2.7–18-V analog supply; powers amplifier core and reference circuitry |
| 7: REF1 | Analog reference input | Second terminal of internal reference divider; symmetric function to REF2 |
| 8: +IN | Analog input | Connects to positive side of shunt resistor; complements –IN for bidirectional sensing |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation in safety-critical automotive subsystems |
| Zero-drift architecture | Enables 10 mV full-scale shunt sensing with <0.1% total error, reducing I²R loss by 90% vs. 100-mV designs |
| Bidirectional sensing capability | Configurable output bias via REF1/REF2 allows true ± current measurement in regenerative braking circuits |
| Integrated ESD protection | HBM Level H2 (±2 kV) and CDM Level C5 (±750 V) meet automotive board-level robustness requirements |
| Functional safety documentation | TI provides FIT rate data, failure mode analysis, and diagnostic coverage reports for ISO 26262 ASIL-B integration |
Applications
| EV Battery Management | Electric Power Steering (EPS) |
|---|---|
Use Scenario: Real-time cell-level current monitoring during charge/discharge cycles in 400-V traction battery packs. IC Role / Device Role / Timing Role: High-side current shunt monitor interfacing directly to battery monitor ICs via isolated analog links. Use Value: ±20 μV offset enables accurate SoC estimation at low C-rates (<0.1C), improving pack lifetime prediction by >15%. |
Use Scenario: Motor phase current sensing in 12-V or 48-V EPS inverters with fast torque response requirements. IC Role / Device Role / Timing Role: Bidirectional current amplifier feeding ADC inputs of EPS MCU for closed-loop motor control. Use Value: 140 dB CMRR suppresses PWM switching noise from gate drivers, reducing current measurement jitter to <0.5% FS. |
| Brake Systems | Electronic Stability Control (ESC) |
Use Scenario: Regenerative braking energy capture monitoring in integrated brake-by-wire actuators. IC Role / Device Role / Timing Role: Low-side shunt monitor on 12-V auxiliary power rail supplying ESC solenoid drivers. Use Value: –14 V to +80 V common-mode range tolerates load-dump transients up to 80 V without clamping diodes. |
Use Scenario: Wheel motor current feedback in 48-V mild-hybrid ESC modules with torque vectoring. IC Role / Device Role / Timing Role: Voltage-output current sensor driving precision SAR ADCs for real-time wheel slip calculation. Use Value: 200 V/V gain and 10 kHz bandwidth support 100-μs current loop updates required for <5-ms stability intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current shunt monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA282AQDRQ1 | 50 V/V gain, lower bandwidth (10 kHz), same package and pinout | Better suited for high-current, low-gain applications (e.g., main battery fuse monitoring) | Select when full-scale shunt voltage exceeds 50 mV and higher gain would saturate the output |
| INA284AQDRQ1 | 500 V/V gain, reduced bandwidth (4 kHz), same package and pinout | Optimized for ultra-low-current sensing (e.g., pre-charge current in DC fast charging) | Choose when sensing <100 mA with 100-mΩ shunts and bandwidth <4 kHz is acceptable |
Compared with INA282AQDRQ1 and INA284AQDRQ1, the INA283AQDRQ1 offers the optimal balance of gain (200 V/V), bandwidth (10 kHz), and offset (±20 μV) for mid-range current monitoring in EPS, ESC, and 48-V auxiliary systems - avoiding saturation at typical shunt voltages while preserving dynamic response.
Availability
INA283AQDRQ1 is available at Aetrix Electronics and suitable for EV battery management, electric power steering, and electronic stability control applications requiring stable component supply across automotive production lifecycles.
Supply support for INA283AQDRQ1 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 delivering analog and embedded processing solutions, with over 50 years of automotive IC expertise and AEC-Q100-compliant manufacturing.
The INA28x-Q1 product line was designed specifically for high-accuracy, high-voltage current sensing in safety-critical automotive subsystems including battery management, motor control, and chassis electronics.
FAQ
What is the maximum common-mode voltage the INA283AQDRQ1 can handle?
The INA283AQDRQ1 supports a common-mode input voltage range of –14 V to +80 V. This allows direct connection to 12-V and 48-V automotive battery rails and enables operation during load-dump transients up to 80 V without external protection components. The specification is validated across the full –40°C to +125°C temperature range per AEC-Q100 Grade 1 requirements.
Does the INA283AQDRQ1 require external calibration for high-accuracy current sensing?
No, the INA283AQDRQ1 does not require external calibration. Its zero-drift architecture achieves ±20 μV maximum offset voltage and 0.3 μV/°C offset drift, enabling <0.1% error at 10 mV shunt voltage without trimming. Gain error is limited to ±1.4% maximum, and the device maintains this accuracy across its full operating temperature range.
Can the INA283AQDRQ1 be used for bidirectional current measurement?
Yes, the INA283AQDRQ1 supports bidirectional current sensing through configurable reference inputs (REF1 and REF2). By applying a mid-supply voltage (e.g., V+/2) to both pins, the output centers at that voltage, allowing equal positive and negative current measurement ranges. This is commonly used in regenerative braking and torque-vectoring motor control.
What package options are available for the INA283AQDRQ1?
The INA283AQDRQ1 is offered in two RoHS-compliant packages: SOIC-8 (4.90 mm × 3.91 mm) and VSSOP-8 (3.00 mm × 3.00 mm). Both share identical pinout, electrical specifications, and thermal performance metrics - with RθJA of 134.9°C/W (SOIC) and 164.1°C/W (VSSOP) - enabling drop-in layout flexibility for space-constrained automotive PCBs.
Is functional safety documentation available for the INA283AQDRQ1?
Yes, Texas Instruments provides functional safety documentation for the INA283AQDRQ1, including FIT rate calculations, failure mode effect analysis (FMEA), and diagnostic coverage reports aligned with ISO 26262 ASIL-B requirements. These resources are intended to support system-level safety case development for automotive applications such as battery management and electronic stability control.
INA283AQDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Monitor
- Sensing Method:
- High/Low-Side
- Accuracy:
- ±0.4%
- Voltage - Input:
- -14V ~ 80V
- Current - Output:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
INA283AQDRQ1 FAQ
1.How can I place an order for INA283AQDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for INA283AQDRQ1 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 INA283AQDRQ1 reliable?
The price and inventory of INA283AQDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA283AQDRQ1 is usually 5 days.
3.What payment methods are accepted for INA283AQDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA283AQDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA283AQDRQ1?
INA283AQDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA283AQDRQ1 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 INA283AQDRQ1?
For technical support, including INA283AQDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA283AQDRQ1 requirements.
6.How does Aetrix verify that INA283AQDRQ1 is sourced from the original manufacturer or authorized distributors?
All INA283AQDRQ1 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 INA283AQDRQ1 meets industry standards.
7.What is the process for return or replacement of INA283AQDRQ1?
All INA283AQDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with INA283AQDRQ1, 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 INA283AQDRQ1 part is unused and in its original packaging.
Return procedure for INA283AQDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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