My Inquiry
My Account
Texas Instruments INA180A3QDBVRQ1
- Part No.:
- INA180A3QDBVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
INA180A3QDBVRQ1.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:33,084
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
INA180A3QDBVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive current-sense amplifier for high- and low-side sensing, featuring 100 V/V fixed gain, –0.2 V to +26 V input common-mode range, ±500 µV max offset at 12 V VCM, 150 kHz bandwidth, and 2 V/µs slew rate - deployed in battery monitoring and motor control systems.
For engineers reviewing the INA180A3QDBVRQ1 datasheet, INA180A3QDBVRQ1 pinout, INA180A3QDBVRQ1 application, or INA180A3QDBVRQ1 equivalent, this page delivers verified technical context, real-world design meaning of specifications, validated pin functions, automotive-grade functional safety documentation support, and confirmed alternative options for cost-optimized current sensing.
Technical Context
The INA180A3QDBVRQ1 uses a precision current-sense topology with integrated matched resistor network enabling accurate voltage drop measurement across shunt resistors independent of supply voltage. Its architecture supports operation with common-mode voltages exceeding VS (up to +26 V) while powered from only 2.7 V to 5.5 V.
This device implements rail-to-rail output swing (within 30 mV of rails), achieves ±1% max gain error over –40°C to +125°C, and maintains 1 µV/°C max offset drift - all critical for stable current measurement in automotive powertrain and body electronics where bus transients and thermal cycling occur.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 100 V/V fixed - enables direct scaling of 10 mV sense voltage to 1 V output, simplifying ADC interface without external gain stages |
| Common-mode range | –0.2 V to +26 V - supports both high-side (e.g., 12 V battery rail) and low-side (ground-referenced) sensing without level-shifting circuitry |
| Bandwidth | 150 kHz - sufficient for fast transient detection in BLDC motor phase current monitoring and overcurrent protection |
| Offset voltage | ±500 µV max at VCM = 12 V - ensures ≤0.5% error at 100 mV full-scale sense voltage, critical for accuracy in low-current battery standby monitoring |
| Quiescent current | 260 µA max - enables always-on current monitoring in automotive modules with strict sleep-mode power budgets |
| Slew rate | 2 V/µs - allows faithful reproduction of fast current pulses (e.g., inrush or fault events) without distortion |
| Supply voltage | 2.7 V to 5.5 V - compatible with standard automotive 3.3 V or 5 V domains, eliminating need for dedicated bias supplies |
Pinout & Package
INA180A3QDBVRQ1 is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for space-constrained automotive PCB layouts and reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Analog output | Delivers amplified, rail-to-rail output voltage proportional to sensed differential voltage; drives ADC inputs directly with minimal loading |
| 2 (GND) | Analog ground | Reference node for internal circuitry and output stage; must be connected to low-impedance system ground plane to maintain CMRR and noise immunity |
| 3 (IN+) | Positive input | Connects to bus-voltage side of shunt in high-side sensing or load side in low-side sensing; designed for robust operation up to +26 V common-mode |
| 4 (IN–) | Negative input | Connects to load side of shunt in high-side sensing or ground side in low-side sensing; maintains accuracy even with –0.2 V common-mode (e.g., reverse polarity protection) |
| 5 (VS) | Power supply | Accepts 2.7 V–5.5 V single supply; powers internal amplifier and reference network; bypass capacitor (0.1 µF) required at pin for stability |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - meets automotive powertrain and chassis module reliability requirements |
| Functional safety documentation support | Includes FIT rate, failure mode analysis, and diagnostic coverage guidance - accelerates ISO 26262 ASIL-B system-level certification |
| Matched internal gain resistor network | Minimizes gain error to ±1% max and reduces temperature drift to 1.5 ppm/°C - eliminates calibration overhead in production |
| Rail-to-rail output | Swings within 30 mV of VS and GND - maximizes dynamic range for 12-bit ADCs operating on 3.3 V supplies |
| High CMRR (84 dB min) | Maintains accuracy despite bus noise coupling into IN+/IN– - essential for reliable sensing in noisy 12 V/24 V vehicle electrical systems |
Applications
| Battery Monitoring System | Electric Power Steering (EPS) Motor Control |
|---|---|
|
Use Scenario: Real-time monitoring of 12 V lead-acid or Li-ion battery pack charge/discharge current during engine start-stop cycles and regenerative braking. IC Role / Device Role / Timing Role: High-side current-sense amplifier converting shunt voltage to conditioned analog output for microcontroller ADC sampling at 10 kHz. Use Value: ±500 µV offset and 150 kHz bandwidth enable accurate detection of <100 mA currents and fast response to load dump transients up to 26 V. |
Use Scenario: Phase current sensing in three-phase BLDC motor driver for torque control and overcurrent shutdown in EPS modules. IC Role / Device Role / Timing Role: Low-side current-sense amplifier placed between motor winding and ground, delivering linear output synchronized with PWM switching. Use Value: 2 V/µs slew rate and rail-to-rail output ensure faithful reproduction of 20 kHz PWM current waveforms without clipping or delay. |
| Automotive Lighting Control | Onboard Charger (OBC) DC Link Monitoring |
|
Use Scenario: LED headlamp current regulation and open-circuit/short-circuit fault detection in adaptive driving beam (ADB) systems. IC Role / Device Role / Timing Role: High-side current monitor feeding feedback loop of constant-current LED driver IC, with fast fault reporting via comparator interface. Use Value: –0.2 V to +26 V common-mode range tolerates reverse-battery conditions and load-dump spikes without latch-up or damage. |
Use Scenario: DC-link current monitoring in 6.6 kW OBC for grid-to-vehicle charging, supporting bidirectional energy flow and thermal derating. IC Role / Device Role / Timing Role: High-side current sensor on 400 V DC bus, isolated via downstream ADC and digital interface, providing real-time current data for safety interlocks. Use Value: AEC-Q100 qualification and 1 µV/°C offset drift ensure stable performance across –40°C cold cranking to +125°C under-hood temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA240A1QDRQ1 | 20 V/V gain, wider –4 V to +80 V common-mode range, higher 400 kHz bandwidth, 10x higher quiescent current (2.4 mA) | Better suited for 48 V mild-hybrid systems and high-speed motor control requiring >200 kHz response | Select when sensing higher bus voltages or needing faster transient response; avoid if ultra-low power is mandatory |
| MAX40010FAUA+ | 100 V/V gain, –0.1 V to +65 V common-mode, 250 kHz bandwidth, ±125 µV max offset at 12 V, non-AEC-Q100 | Targeted at industrial and commercial EVSE/BMS where automotive qualification is not required | Choose for lower offset and wider common-mode in non-automotive designs; not suitable for ASIL-compliant automotive ECUs |
Compared with INA180A3QDBVRQ1, INA240A1QDRQ1 offers superior voltage range and speed at higher power cost, while MAX40010FAUA+ provides tighter offset and extended common-mode but lacks automotive qualification - making INA180A3QDBVRQ1 optimal for cost-sensitive, AEC-Q100–mandated 12 V/24 V applications.
Availability
INA180A3QDBVRQ1 is available at Aetrix Electronics and suitable for battery monitoring, motor control, lighting control, and overcurrent detection requiring stable component supply in automotive production programs.
Supply support for INA180A3QDBVRQ1 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 solutions.
The INA180-Q1 family was designed specifically for cost-optimized, AEC-Q100–compliant current sensing in automotive body electronics, powertrain subsystems, and electrification modules where precision, reliability, and small footprint are essential.
FAQ
What is the maximum common-mode voltage supported by the INA180A3QDBVRQ1?
The INA180A3QDBVRQ1 supports a common-mode input voltage range from –0.2 V to +26 V. This allows it to operate reliably in high-side configurations on 12 V or 24 V automotive buses, even during load-dump transients, without requiring external level-shifting circuitry. The specification is guaranteed across the full –40°C to +125°C temperature range and is independent of the 2.7 V to 5.5 V supply voltage.
Does the INA180A3QDBVRQ1 require external gain-setting resistors?
No, the INA180A3QDBVRQ1 integrates a precision-matched internal resistor network configured for 100 V/V fixed gain. This eliminates external components, reduces board area, improves temperature stability (gain drift ≤20 ppm/°C), and removes calibration steps during manufacturing - a key advantage over discrete op-amp-based current-sense solutions.
Is the INA180A3QDBVRQ1 qualified for automotive use?
Yes, the INA180A3QDBVRQ1 is AEC-Q100 qualified for automotive applications (Grade 1: –40°C to +125°C ambient), with HBM ESD rating of ±3000 V and CDM rating of ±1000 V. It also provides functional safety documentation to support ISO 26262 ASIL-B system development, including FIT data and failure mode analysis reports.
What is the typical bandwidth and slew rate of the INA180A3QDBVRQ1?
The INA180A3QDBVRQ1 has a small-signal bandwidth of 150 kHz and a large-signal slew rate of 2 V/µs. These values are measured under standard conditions (CLOAD = 10 pF, VCM = 12 V) and enable accurate capture of fast current transients - such as motor startup surges or short-circuit events - without phase lag or waveform distortion.
How does the rail-to-rail output capability benefit system design with the INA180A3QDBVRQ1?
The INA180A3QDBVRQ1 delivers rail-to-rail output swing (within 30 mV of VS and GND), maximizing usable dynamic range for downstream 3.3 V or 5 V ADCs. This eliminates the need for output level-shifting or gain adjustment stages, reduces component count, and preserves signal fidelity - especially critical when measuring low-magnitude currents where every millivolt of resolution matters.
INA180A3QDBVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 150 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 80 µA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 197µA
- 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:
- SOT-23-5
INA180A3QDBVRQ1 FAQ
1.How can I place an order for INA180A3QDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for INA180A3QDBVRQ1 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 INA180A3QDBVRQ1 reliable?
The price and inventory of INA180A3QDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA180A3QDBVRQ1 is usually 5 days.
3.What payment methods are accepted for INA180A3QDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA180A3QDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA180A3QDBVRQ1?
INA180A3QDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA180A3QDBVRQ1 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 INA180A3QDBVRQ1?
For technical support, including INA180A3QDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA180A3QDBVRQ1 requirements.
6.How does Aetrix verify that INA180A3QDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All INA180A3QDBVRQ1 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 INA180A3QDBVRQ1 meets industry standards.
7.What is the process for return or replacement of INA180A3QDBVRQ1?
All INA180A3QDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with INA180A3QDBVRQ1, 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 INA180A3QDBVRQ1 part is unused and in its original packaging.
Return procedure for INA180A3QDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
INA180A3QDBVRQ1 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…
