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Texas Instruments INA2180A4QDGKRQ1
- Part No.:
- INA2180A4QDGKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
INA2180A4QDGKRQ1.pdf
- Description:
- IC CURR SENSE 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,311
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Product details
Overview
INA2180A4QDGKRQ1 from Texas Instruments is an automotive-grade dual-channel current-sense amplifier with 200 V/V fixed gain, –0.2 V to +26 V input common-mode range, ±500 µV max offset at 12 V VCM, and 105 kHz bandwidth. It operates from 2.7 V to 5.5 V supply and delivers rail-to-rail output swing for precision low- and high-side motor current monitoring in AEC-Q100 Grade 1 systems.
For engineers reviewing the INA2180A4QDGKRQ1 datasheet, INA2180A4QDGKRQ1 pinout, INA2180A4QDGKRQ1 application, or INA2180A4QDGKRQ1 equivalent, this page provides verified technical context, validated pin functions, confirmed automotive operating limits (–40°C to +125°C), real-world application mappings, and two rigorously cross-checked alternative parts with documented functional and application differences.
Technical Context
The INA2180A4QDGKRQ1 implements a matched-resistor gain network optimized for 200 V/V fixed amplification, minimizing gain error drift across temperature (≤20 ppm/°C) and ensuring stable current measurement accuracy under varying bus conditions. Its proprietary topology enables operation with input common-mode voltage up to +26 V - independent of its 2.7–5.5 V supply - supporting both high-side and low-side sensing without level-shifting circuitry.
With 2 V/µs slew rate and 105 kHz small-signal bandwidth, the device resolves fast transient currents typical in brushed DC and BLDC motor control loops. Its rail-to-rail output (within 30 mV of VS and 0.5 mV of GND) preserves dynamic range for ADC interfacing, while integrated ESD protection (HBM ±3 kV, CDM ±1 kV) meets automotive robustness requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 200 V/V fixed - eliminates external resistor matching errors and reduces layout sensitivity in shunt-based current sensing. |
| Common-mode range | –0.2 V to +26 V - supports direct connection to 12 V/24 V automotive buses without attenuation or isolation. |
| Offset voltage | ±500 µV max at VCM = 12 V - enables accurate sub-100 mA current detection with 10 mΩ shunt at room temperature. |
| Bandwidth | 105 kHz - sufficient to capture motor phase current harmonics up to 5th order in 10 kHz PWM-driven systems. |
| Quiescent current | 500 µA max - allows dual-channel sensing in always-on vehicle subsystems without excessive battery drain. |
| Supply voltage | 2.7 V to 5.5 V - compatible with standard automotive LDO outputs and microcontroller I/O domains. |
| Operating temperature | –40°C to +125°C - qualified per AEC-Q100 Grade 1 for under-hood and powertrain applications. |
Pinout & Package
The INA2180A4QDGKRQ1 is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm, optimized for thermal performance (RθJA = 177.9°C/W) and PCB space efficiency in automotive control modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 | Analog output | Amplified voltage representing channel 1 current sense (VOUT1 = 200 × VSENSE1). |
| IN–1 | Analog input | Negative input for channel 1; connects to load side of shunt in high-side config or ground side in low-side config. |
| IN+1 | Analog input | Positive input for channel 1; connects to bus-voltage side of shunt in high-side config or load side in low-side config. |
| GND | Analog ground | Reference node for internal circuitry and output swing; must be tied to system analog ground plane. |
| IN+2 | Analog input | Positive input for channel 2; electrically isolated from channel 1 inputs to prevent crosstalk (≥120 dB @ 100 kHz). |
| IN–2 | Analog input | Negative input for channel 2; supports independent current monitoring of second motor or power rail. |
| OUT2 | Analog output | Amplified voltage representing channel 2 current sense (VOUT2 = 200 × VSENSE2); rail-to-rail capable. |
| VS | Analog supply | Single 2.7–5.5 V power source for both channels; bypass capacitor (0.1 µF) required at pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 (–40°C to +125°C ambient) with HBM ±3 kV / CDM ±1 kV ESD rating - certified for safety-critical vehicle subsystems. |
| Fixed-gain architecture | 200 V/V matched resistor network - eliminates external gain-setting errors and reduces temperature-induced gain drift to ≤20 ppm/°C. |
| Rail-to-rail output | Swing within 30 mV of VS and 0.5 mV of GND - maximizes usable ADC input range when interfacing with 3.3 V or 5 V microcontrollers. |
| High CMRR | 84–100 dB over –40°C to +125°C - rejects noise from shared power rails and ensures accuracy during load transients. |
| Low quiescent current | 500 µA max total for dual channels - enables continuous current monitoring in battery-powered telematics and ADAS modules. |
Applications
| Motor Control | Battery Monitoring |
|---|---|
Use Scenario: Real-time phase current feedback in 12 V brushed DC window lift motors and BLDC seat adjusters. IC Role / Device Role / Timing Role: Dual-channel current-sense amplifier providing isolated, high-bandwidth analog signals for MCU-based closed-loop torque control. Use Value: 105 kHz bandwidth captures PWM ripple; 200 V/V gain enables use of 5 mΩ shunts, reducing power loss by >40% vs. 10 mΩ alternatives. |
Use Scenario: Cell-level current monitoring in 12 V lead-acid and LiFePO₄ starter batteries for state-of-charge estimation. IC Role / Device Role / Timing Role: High-side current sensor measuring charge/discharge current with ±500 µV offset error at 12 V bus. Use Value: –0.2 V to +26 V common-mode range accommodates cold-cranking dips and load-dump spikes without saturation. |
| Power Management | Overcurrent Detection |
Use Scenario: Input current supervision in automotive infotainment DC/DC converters and USB-C PD controllers. IC Role / Device Role / Timing Role: Dual-channel monitor tracking both input and output rail currents to detect converter inefficiency or short circuits. Use Value: Independent IN+/IN– pairs per channel enable simultaneous high-side and low-side sensing on separate rails with no shared reference issues. |
Use Scenario: Fast fault response in HVAC blower motor drivers and lighting ballasts using external comparator thresholding. IC Role / Device Role / Timing Role: Current-sense front-end feeding analog signal to comparator with 2 V/µs slew rate enabling <500 ns overcurrent reaction. Use Value: 105 kHz bandwidth and 2 V/µs slew rate ensure detection of <1 µs current spikes before MOSFET damage occurs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA2180A3QDGKRQ1 | 100 V/V gain (vs. 200 V/V); 150 kHz bandwidth; ±500 µV offset same spec. | Requires 2× larger shunt resistor for same output voltage swing; better suited for higher-current (>5 A) sensing where lower gain improves SNR. | Select when full-scale current exceeds 2.5 A and system prioritizes noise performance over minimal shunt loss. |
| INA240A4QDRQ1 | 200 V/V gain; wider –4 V to +80 V common-mode range; 420 kHz bandwidth; higher 1.8 mA IQ. | Supports 48 V mild-hybrid architectures and faster switching inverters; not pin-compatible due to different 8-pin SOIC footprint. | Choose for next-gen 48 V systems or when >26 V bus margin is required; requires PCB redesign. |
Compared with INA2180A3QDGKRQ1 and INA240A4QDRQ1, the INA2180A4QDGKRQ1 offers optimal balance of high gain, automotive temperature compliance, and ultra-low quiescent current for cost-sensitive 12 V/24 V motor and battery applications - without sacrificing AEC-Q100 reliability or requiring layout changes.
Availability
INA2180A4QDGKRQ1 is available at Aetrix Electronics and suitable for motor control, battery monitoring, and power management applications requiring stable component supply across automotive production lifecycles.
Supply support for INA2180A4QDGKRQ1 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 for automotive, industrial, and personal electronics markets.
The INA2180-Q1 product line delivers cost-optimized, AEC-Q100-qualified current-sense amplifiers for low- and high-side sensing in automotive powertrain, body electronics, and chassis systems.
FAQ
What is the maximum common-mode voltage supported by the INA2180A4QDGKRQ1?
The INA2180A4QDGKRQ1 supports a common-mode input voltage range of –0.2 V to +26 V, enabling direct connection to 12 V and 24 V automotive buses without external attenuation. This specification is guaranteed across the full operating temperature range (–40°C to +125°C) and is independent of the 2.7–5.5 V supply voltage applied to the INA2180A4QDGKRQ1.
Does the INA2180A4QDGKRQ1 require external gain-setting resistors?
No, the INA2180A4QDGKRQ1 integrates a factory-trimmed, matched resistor network for fixed 200 V/V gain. This eliminates external components, reduces board area, and ensures consistent gain accuracy (±1% max) and low temperature drift (≤20 ppm/°C) without user calibration - a key design feature of the INA2180A4QDGKRQ1.
What is the operating temperature range for the INA2180A4QDGKRQ1?
The INA2180A4QDGKRQ1 is qualified per AEC-Q100 Grade 1 with an operating ambient temperature range of –40°C to +125°C. This rating is validated through accelerated stress testing and applies to all electrical specifications including offset voltage, gain error, and bandwidth - ensuring reliable operation in under-hood and powertrain environments.
Can the INA2180A4QDGKRQ1 be used for both high-side and low-side current sensing?
Yes, the INA2180A4QDGKRQ1 supports both configurations due to its wide –0.2 V to +26 V common-mode input range and rail-to-rail output. In high-side sensing, IN+ connects to the bus and IN– to the shunt load side; in low-side sensing, IN+ connects to the shunt load side and IN– to ground - both valid for the INA2180A4QDGKRQ1.
What is the typical quiescent current consumption of the INA2180A4QDGKRQ1?
The INA2180A4QDGKRQ1 draws a maximum of 500 µA quiescent current across its full operating temperature range (–40°C to +125°C). At 25°C and 5 V supply, typical consumption is 355 µA - enabling dual-channel current monitoring in always-on automotive subsystems without compromising battery longevity.
INA2180A4QDGKRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 105 kHz
- -3db Bandwidth:
- 105 kHz
- Current - Input Bias:
- 80 µA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 355µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
INA2180A4QDGKRQ1 FAQ
1.How can I place an order for INA2180A4QDGKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for INA2180A4QDGKRQ1 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 INA2180A4QDGKRQ1 reliable?
The price and inventory of INA2180A4QDGKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA2180A4QDGKRQ1 is usually 5 days.
3.What payment methods are accepted for INA2180A4QDGKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA2180A4QDGKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA2180A4QDGKRQ1?
INA2180A4QDGKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA2180A4QDGKRQ1 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 INA2180A4QDGKRQ1?
For technical support, including INA2180A4QDGKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA2180A4QDGKRQ1 requirements.
6.How does Aetrix verify that INA2180A4QDGKRQ1 is sourced from the original manufacturer or authorized distributors?
All INA2180A4QDGKRQ1 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 INA2180A4QDGKRQ1 meets industry standards.
7.What is the process for return or replacement of INA2180A4QDGKRQ1?
All INA2180A4QDGKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with INA2180A4QDGKRQ1, 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 INA2180A4QDGKRQ1 part is unused and in its original packaging.
Return procedure for INA2180A4QDGKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
INA2180A4QDGKRQ1 Tags
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LM358DT
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LM358DR
Texas Instruments
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LM2904DR
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MCP6006T-E/OT
Microchip Technology
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