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Texas Instruments INA2180A4IDSGT
- Part No.:
- INA2180A4IDSGT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
INA2180A4IDSGT.pdf
- Description:
- IC CURRENT SENSE 2 CIRCUIT 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:707
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Product details
Overview
INA2180A4IDSGT from Texas Instruments is a dual-channel, high-precision current-sense amplifier with 200 V/V fixed gain, –0.2 V to +26 V common-mode input range, ±500 µV max offset at 12 V VCM, and 2 V/µs slew rate-designed for bidirectional current monitoring in motor control and battery management systems.
For engineers reviewing the INA2180A4IDSGT datasheet, INA2180A4IDSGT pinout, INA2180A4IDSGT application, or INA2180A4IDSGT equivalent, this page delivers verified specifications, dual-channel pin mapping for WSON-8, real-world use cases in overcurrent detection and solar inverters, and two validated alternative parts with functional and packaging distinctions.
Technical Context
The INA2180A4IDSGT implements a precision current-shunt monitor architecture with integrated matched resistor gain network, enabling accurate voltage-to-current conversion independent of supply rail. Its dual-channel design supports simultaneous sensing on separate power paths while maintaining channel separation >110 dB at 10 kHz.
It operates from a single 2.7–5.5 V supply with 500 µA max quiescent current, supports low-side and high-side configurations via differential IN+ and IN− inputs per channel, and delivers rail-to-rail output swing (within 30 mV of VS and 5 mV of GND) across –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 200 V/V fixed-enables direct interface with 10-mΩ shunts for 2-A full-scale current measurement at 5-V output. |
| Common-mode range | –0.2 V to +26 V-supports high-side sensing on 24-V bus rails without level-shifting circuitry. |
| Offset voltage | ±500 µV max at VCM = 12 V-limits current measurement error to ≤0.5% at 100-mV sense voltage. |
| Bandwidth | 105 kHz (A4 variant)-sufficient for PWM-based motor control up to 20-kHz switching with <1% gain error. |
| Slew rate | 2 V/µs-ensures faithful reproduction of fast transient currents (e.g., inrush or fault events). |
| Supply current | 500 µA max-enables always-on monitoring in battery-powered systems with minimal standby drain. |
| Operating temperature | –40°C to +125°C-qualified for under-hood automotive and industrial power-conversion environments. |
Pinout & Package
The INA2180A4IDSGT is housed in an 8-pin WSON package (2.0 mm × 2.0 mm, 0.65-mm pitch) with exposed thermal pad (optional GND connection). This thermally enhanced, space-constrained package supports high-density PCB layouts in power modules and motor drives.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT1 | Analog output | Channel 1 amplified output (200× VSENSE); drives ADC or comparator directly. |
| 2: IN−1 | Analog input | Channel 1 negative sense input-connect to load side (high-side) or ground side (low-side) of RSENSE. |
| 3: IN+1 | Analog input | Channel 1 positive sense input-connect to bus side (high-side) or load side (low-side) of RSENSE. |
| 4: GND | Analog ground | Reference node for all analog signals; tie to PCB ground plane beneath thermal pad. |
| 5: IN+2 | Analog input | Channel 2 positive sense input-electrically isolated from Channel 1 for independent current paths. |
| 6: IN−2 | Analog input | Channel 2 negative sense input-supports concurrent dual-rail monitoring (e.g., input + output of DC-DC converter). |
| 7: OUT2 | Analog output | Channel 2 amplified output-identical gain and dynamic response as OUT1. |
| 8: VS | Power supply | Single 2.7–5.5 V supply input; bypass with 0.1-µF ceramic capacitor placed ≤2 mm from pin. |
Key Features
| Feature | Design Value |
|---|---|
| Matched internal gain resistors | 200 V/V fixed ratio with ±1% max gain error-eliminates external resistor matching and reduces temperature-induced gain drift to 20 ppm/°C. |
| High CMRR | 100 dB min at DC-rejects common-mode noise from noisy 24-V bus rails during high-side sensing. |
| Rail-to-rail output | Swings within 30 mV of VS and 5 mV of GND-maximizes dynamic range when interfacing with 3.3-V or 5-V ADCs. |
| Low quiescent current | 500 µA max for both channels-enables continuous current monitoring in energy-sensitive applications like portable medical devices. |
| Robust ESD rating | ±3000 V HBM-survives handling and board-level assembly without additional protection circuitry. |
Applications
| Motor Control | Battery Monitoring |
|---|---|
Use Scenario: Real-time phase current sensing in BLDC motor drivers using low-side shunts. IC Role / Device Role / Timing Role: Dual-channel current-sense amplifier measuring IU and IV simultaneously with matched gain and timing response. Use Value: Enables precise field-oriented control (FOC) with <1% current error across temperature, supporting efficient torque regulation. |
Use Scenario: Bidirectional current monitoring in 12-V lead-acid or Li-ion battery packs for state-of-charge estimation. IC Role / Device Role / Timing Role: High-side sensing on battery terminal with 26-V common-mode tolerance and low offset drift. Use Value: Delivers ±0.5% current accuracy over –40°C to +85°C, improving coulomb counting fidelity in BMS firmware. |
| Solar Inverters | Overcurrent Detection |
Use Scenario: DC-link current monitoring in string inverters with 600-V bus isolation and 24-V auxiliary supply. IC Role / Device Role / Timing Role: Low-side shunt amplifier referenced to isolated ground, rejecting common-mode transients up to 26 V. Use Value: Provides 105-kHz bandwidth and 2-V/µs slew rate to capture fast fault currents before MOSFET destruction. |
Use Scenario: Fast-trip overcurrent protection in industrial PLC output modules driving solenoids or relays. IC Role / Device Role / Timing Role: Dual-channel amplifier feeding comparators for independent channel fault detection with <1-µs latency. Use Value: Enables sub-10-µs response to short-circuit events due to high slew rate and low propagation delay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA2180A4IDGKT | Same dual-channel, 200 V/V gain, but in 8-pin VSSOP (3.0 mm × 3.0 mm) instead of WSON (2.0 mm × 2.0 mm); 177.9°C/W θJA vs. 74.9°C/W. | Preferred where manual soldering or thermal relief is prioritized over board area; less suitable for ultra-dense power modules. | Select IDGKT for prototyping or lower-volume production where VSSOP footprint simplifies layout and rework. |
| INA240A4D | Higher precision: ±50 µV max offset, 120-kHz bandwidth, 10-V/V to 500-V/V selectable gain-but single-channel and 10-pin VSSOP. | Used where higher accuracy justifies added complexity and cost; not drop-in for dual-channel requirements. | Choose INA240A4D only if system demands <0.1% current error and can accommodate separate amplifiers per channel. |
Compared with INA2180A4IDSGT, the IDGKT offers identical electrical performance in a larger, more manufacturable package, while the INA240A4D trades dual-channel integration for superior offset and bandwidth-making the INA2180A4IDSGT optimal for space-constrained, cost-sensitive dual-path monitoring.
Availability
INA2180A4IDSGT is available at Aetrix Electronics and suitable for motor control, battery monitoring, and solar inverter designs requiring stable component supply, extended temperature operation, and compact WSON packaging.
Supply support for INA2180A4IDSGT 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 decades of expertise in precision signal conditioning and power management ICs.
The INA2180 series belongs to TI's current-sense amplifier product line, engineered for cost-optimized, high-reliability current monitoring in industrial, automotive, and renewable energy systems where accuracy, wide common-mode range, and dual-channel integration are critical.
FAQ
What is the maximum common-mode voltage supported by the INA2180A4IDSGT?
The INA2180A4IDSGT supports a common-mode input voltage range of –0.2 V to +26 V. This allows it to accurately sense current on high-side configurations with bus voltages up to 24 V, such as in 24-V industrial motor drives or solar inverter DC links, without requiring external level-shifting circuitry. The specification is guaranteed across the full –40°C to +125°C operating temperature range.
Does the INA2180A4IDSGT require external gain-setting resistors?
No, the INA2180A4IDSGT does not require external gain-setting resistors. It integrates a precision-matched internal resistor network configured for 200 V/V fixed gain. This eliminates resistor matching errors, reduces PCB area, and minimizes temperature-dependent gain drift to 20 ppm/°C-key advantages over discrete op-amp-based current-sense solutions.
What is the thermal pad connection recommendation for the INA2180A4IDSGT WSON package?
The thermal pad on the INA2180A4IDSGT (DSG package) may be left floating or connected to GND. TI recommends connecting it to the PCB ground plane via multiple vias for improved thermal dissipation-especially in high-ambient-temperature applications-while maintaining electrical safety and minimizing noise coupling into the analog ground path.
Can the INA2180A4IDSGT be used for bidirectional current sensing?
Yes, the INA2180A4IDSGT supports bidirectional current sensing when used with a center-tapped or bipolar shunt configuration. Its input stage operates down to –0.2 V common-mode, enabling accurate measurement of reverse current flow (e.g., regenerative braking in motor drives or charge/discharge in battery systems), provided the output is interfaced with a ratiometric or bipolar ADC.
How does the bandwidth of the INA2180A4IDSGT compare to other variants in the INA2180 family?
The INA2180A4IDSGT has a small-signal bandwidth of 105 kHz (at CLOAD = 10 pF), which is lower than the A1 (350 kHz), A2 (210 kHz), and A3 (150 kHz) variants due to its higher 200 V/V gain. This trade-off ensures stability and predictable step response for applications like overcurrent detection where gain accuracy outweighs ultra-high bandwidth.
INA2180A4IDSGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- -
- -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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (2x2)
INA2180A4IDSGT FAQ
1.How can I place an order for INA2180A4IDSGT through Aetrix?
Please submit a Request for Quotation (RFQ) for INA2180A4IDSGT 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 INA2180A4IDSGT reliable?
The price and inventory of INA2180A4IDSGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA2180A4IDSGT is usually 5 days.
3.What payment methods are accepted for INA2180A4IDSGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA2180A4IDSGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA2180A4IDSGT?
INA2180A4IDSGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA2180A4IDSGT 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 INA2180A4IDSGT?
For technical support, including INA2180A4IDSGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA2180A4IDSGT requirements.
6.How does Aetrix verify that INA2180A4IDSGT is sourced from the original manufacturer or authorized distributors?
All INA2180A4IDSGT 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 INA2180A4IDSGT meets industry standards.
7.What is the process for return or replacement of INA2180A4IDSGT?
All INA2180A4IDSGT units undergo pre-shipment inspection (PSI). If there is an issue with INA2180A4IDSGT, 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 INA2180A4IDSGT part is unused and in its original packaging.
Return procedure for INA2180A4IDSGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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