My Inquiry
My Account
Texas Instruments INA212AQDCKRQ1
- Part No.:
- INA212AQDCKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
INA212AQDCKRQ1.pdf
- Description:
- INA212-Q1 - AEC-Q100, 26V, BI-DI
- Quantity:
- Payment:
- Shipping:
Inventory:2,899
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
INA212AQDCKRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive current-shunt monitor optimized for high-side or low-side bidirectional current sensing, featuring 1000 V/V fixed gain, ±100 µV maximum offset voltage, 0.5 µV/°C max offset drift, and –0.3 V to 26 V wide common-mode input range-enabling precise 10-mV full-scale shunt measurements in motor control and electronic stability control systems.
For engineers reviewing the INA212AQDCKRQ1 datasheet, INA212AQDCKRQ1 pinout, INA212AQDCKRQ1 application, or INA212AQDCKRQ1 equivalent, this page delivers verified technical context, exact pin functions, real-world application mappings, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The INA212AQDCKRQ1 implements a zero-drift chopper-stabilized amplifier architecture to achieve ±100 µV max input offset and 0.5 µV/°C max drift over –40°C to +125°C, supporting accurate low-voltage shunt sensing. Its differential input stage operates with rail-to-rail output swing (to within 50 mV of V+ and 5 mV of GND) and 4 kHz bandwidth at 10 pF load.
It accepts a reference voltage (REF) from 0 V to V+, enabling programmable output offset, and draws ≤100 µA quiescent current from a 2.7–26 V single supply-making it suitable for always-on automotive subsystems where power efficiency and thermal stability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 1000 V/V - enables 10-mV shunt drop to produce 10-V output, reducing I²R loss by 90% vs. 100-mV designs |
| Offset Voltage (max) | ±100 µV - supports accurate measurement down to ~100 µA across 100-mΩ shunt at 25°C |
| Common-Mode Range | –0.3 V to 26 V - allows direct sensing on 12-V or 24-V battery rails without level-shifting |
| Supply Voltage | 2.7 V to 26 V - compatible with automotive battery transients and low-power microcontroller domains |
| Quiescent Current (max) | 100 µA - enables continuous monitoring in wake-up or standby modes without significant battery drain |
| Bandwidth | 4 kHz - sufficient for DC–10 kHz motor current feedback loops and overcurrent fault detection |
| CMRR (min) | 140 dB - rejects noise from high-dV/dt switching nodes in valve or inverter drive circuits |
Pinout & Package
INA212AQDCKRQ1 is housed in a 6-pin SC70 package (2.00 mm × 1.25 mm body), optimized for space-constrained automotive PCBs and thermally efficient mounting on small copper pads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF (Pin 1) | Reference voltage input | Defines output zero point; tied to GND for unipolar output or to mid-supply for bipolar swing |
| IN– (Pin 5) | Inverting input | Connected to load side of shunt; senses current direction in bidirectional applications |
| IN+ (Pin 4) | Non-inverting input | Connected to supply side of shunt; determines common-mode voltage handling capability |
| OUT (Pin 6) | Voltage output | Provides amplified, buffered output proportional to shunt voltage; drives ADC inputs directly |
| GND (Pin 2) | Analog ground | Return path for internal bias network; must be connected to low-impedance system ground plane |
| V+ (Pin 3) | Power supply | Single 2.7–26 V rail; bypassed with 0.01–0.1 µF capacitor close to pin for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation in body control modules and safety-critical vehicle subsystems |
| Zero-drift architecture | Eliminates 1/f noise and thermal hysteresis, ensuring stable offset over temperature and lifetime |
| Bidirectional sensing support | Output polarity reverses with current direction when REF is set to mid-supply, enabling regenerative braking monitoring |
| High CMRR (140 dB) | Maintains accuracy in noisy 12-V/24-V environments with fast-switching loads (e.g., solenoid drivers, inverters) |
| Low quiescent current (≤100 µA) | Permits integration into always-on diagnostic circuits without compromising battery longevity |
Applications
| Body Control Module | Motor Control |
|---|---|
Use Scenario: Real-time monitoring of door lock actuator, window lift, or HVAC blower current for stall detection and energy optimization. IC Role / Device Role / Timing Role: High-side current-sense amplifier providing analog feedback to MCU ADC with <10-µs response to overcurrent events. Use Value: Enables predictive failure detection and reduces fuse dependency via software-configurable trip thresholds. |
Use Scenario: Closed-loop phase current sensing in 3-phase BLDC motor drives for electric power steering (EPS) and seat adjusters. IC Role / Device Role / Timing Role: Low-latency, high-accuracy shunt monitor feeding current data to PWM controller for torque ripple suppression. Use Value: Supports <1% current measurement error across –40°C to +125°C, improving motor efficiency and thermal margin. |
| Electronic Stability Control | Valve Control |
Use Scenario: Monitoring ABS pump motor current during emergency braking to verify hydraulic pressure build-up and detect mechanical binding. IC Role / Device Role / Timing Role: Automotive-grade current sensor interfacing with safety MCU via isolated analog channel for ASIL-B compliance. Use Value: Delivers functional safety-ready performance with documented failure modes and FIT rate data per ISO 26262. |
Use Scenario: Precise fuel injector or transmission solenoid coil current profiling for closed-loop duty cycle correction and diagnostics. IC Role / Device Role / Timing Role: Bidirectional current monitor capturing turn-on/turn-off transients and steady-state hold current. Use Value: Enables real-time coil resistance calculation to detect aging, contamination, or open-circuit faults before failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA213AQDCKRQ1 | 50 V/V gain, ±100 µV max offset, 80 kHz bandwidth | Better suited for higher shunt drops (>60 mV) and faster transient response in solenoid driver feedback | Select when full-scale shunt voltage exceeds 20 mV and bandwidth >10 kHz is required |
| INA226AQDGSRQ1 | I²C digital output, 16-bit resolution, integrated 0.1-Ω shunt, 10 µV offset | Replaces analog signal chain with calibrated digital interface; requires MCU I²C support | Choose for simplified BOM, built-in calibration, and multi-channel synchronized sampling |
Compared with INA212AQDCKRQ1, INA213AQDCKRQ1 offers higher bandwidth but lower gain-ideal for high-current, high-speed valves-while INA226AQDGSRQ1 shifts to digital domain with superior offset and integrated shunt, trading analog simplicity for system-level calibration and communication overhead.
Availability
INA212AQDCKRQ1 is available at Aetrix Electronics and suitable for automotive body electronics, motor control systems, and electronic stability control modules requiring stable component supply across extended temperature and long production lifecycles.
Supply support for INA212AQDCKRQ1 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 automotive environments-prioritizing precision, thermal stability, and functional safety readiness over general-purpose use.
FAQ
What is the maximum common-mode voltage supported by the INA212AQDCKRQ1?
The INA212AQDCKRQ1 supports a common-mode input voltage range of –0.3 V to 26 V, independent of its supply voltage. This allows direct connection to 12-V or 24-V battery rails in automotive applications without external level-shifting circuitry. Operation above 26 V requires external transient protection per TI's recommended Zener-based clamp design.
Does the INA212AQDCKRQ1 support bidirectional current sensing?
Yes, the INA212AQDCKRQ1 supports bidirectional current sensing when the REF pin is biased to a midpoint voltage (e.g., V+/2). In this configuration, current flowing in one direction produces a positive output relative to REF, while reverse current yields a negative output-enabling regenerative current monitoring in EPS or brake-by-wire systems.
What is the typical bandwidth and slew rate of the INA212AQDCKRQ1?
The INA212AQDCKRQ1 has a typical bandwidth of 4 kHz (measured at CLOAD = 10 pF) and a slew rate of 0.4 V/µs. These values ensure stable operation with standard 10-kΩ ADC input impedances and support fast overcurrent detection within 250 µs for fault response in safety-critical automotive subsystems.
How does the zero-drift architecture improve accuracy in the INA212AQDCKRQ1?
The zero-drift chopper-stabilized architecture in the INA212AQDCKRQ1 reduces input offset voltage to ±100 µV max and limits offset drift to 0.5 µV/°C over –40°C to +125°C. This eliminates thermal hysteresis and 1/f noise, enabling consistent 10-mV full-scale shunt measurements across temperature and time-critical for long-lifetime automotive deployments.
Can the INA212AQDCKRQ1 operate from a 3.3-V supply?
Yes, the INA212AQDCKRQ1 operates from a minimum supply voltage of 2.7 V, making it fully compatible with 3.3-V microcontroller domains. At 3.3 V, its output swings from 5 mV above GND to within 50 mV of V+, delivering a usable 0–3.25 V range for 12-bit ADCs without external level-shifting.
INA212AQDCKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- Single-Ended
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- 4 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
INA212AQDCKRQ1 FAQ
1.How can I place an order for INA212AQDCKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for INA212AQDCKRQ1 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 INA212AQDCKRQ1 reliable?
The price and inventory of INA212AQDCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA212AQDCKRQ1 is usually 5 days.
3.What payment methods are accepted for INA212AQDCKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA212AQDCKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA212AQDCKRQ1?
INA212AQDCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA212AQDCKRQ1 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 INA212AQDCKRQ1?
For technical support, including INA212AQDCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA212AQDCKRQ1 requirements.
6.How does Aetrix verify that INA212AQDCKRQ1 is sourced from the original manufacturer or authorized distributors?
All INA212AQDCKRQ1 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 INA212AQDCKRQ1 meets industry standards.
7.What is the process for return or replacement of INA212AQDCKRQ1?
All INA212AQDCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with INA212AQDCKRQ1, 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 INA212AQDCKRQ1 part is unused and in its original packaging.
Return procedure for INA212AQDCKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
INA212AQDCKRQ1 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
