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Texas Instruments INA2180A2IDGKR
- Part No.:
- INA2180A2IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
INA2180A2IDGKR.pdf
- Description:
- IC CURR SENSE 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,095
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Product details
Overview
INA2180A2IDGKR from Texas Instruments is a dual-channel, high-precision current-sense amplifier with 50 V/V fixed gain, –0.2 V to +26 V common-mode input range, ±500 µV max offset at 12 V VCM, and 210 kHz bandwidth. It operates from 2.7 V to 5.5 V supply and draws ≤500 µA quiescent current, enabling accurate bidirectional current monitoring in motor control and battery management systems.
For engineers reviewing the INA2180A2IDGKR datasheet, INA2180A2IDGKR pinout, INA2180A2IDGKR application, or INA2180A2IDGKR equivalent, this page delivers verified specifications, dual-channel pin mapping for VSSOP-8, real-world use cases in overcurrent detection and solar inverters, and two validated alternative parts with documented functional and packaging differences.
Technical Context
The INA2180A2IDGKR integrates matched thin-film gain resistors for 50 V/V amplification, minimizing gain error (±1% max) and temperature drift (≤20 ppm/°C). Its input stage supports rail-to-rail common-mode operation up to 26 V independent of supply voltage, enabling direct sensing on high-voltage buses without level-shifting.
Each channel features independent IN+ and IN– inputs optimized for both low-side (ground-referenced shunt) and high-side (bus-referenced shunt) configurations. The output swings within 30 mV of GND and 30 mV of VS across –40°C to +125°C, supporting direct interface with 12-bit ADCs and microcontrollers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 50 V/V fixed - enables 20-mV full-scale shunt voltage to produce 1-V output, simplifying ADC scaling and reducing noise sensitivity. |
| Common-mode range | –0.2 V to +26 V - supports direct sensing on 24-V industrial buses and automotive battery rails without external level shifters. |
| Offset voltage | ±500 µV max at VCM = 12 V - ensures ≤10 mA error in 20-mΩ shunt at 12 V bus, critical for precision battery charge/discharge monitoring. |
| Bandwidth | 210 kHz - captures fast transient currents in BLDC motor commutation and PWM-driven lighting loads. |
| Quiescent current | 500 µA max - allows dual-channel current sensing in always-on power management subsystems with minimal standby power penalty. |
| Supply voltage | 2.7 V to 5.5 V - compatible with single Li-ion, 3.3-V logic, and 5-V system rails without LDO overhead. |
| Output swing | Within 5 mV of GND and 30 mV of VS - ensures full dynamic range utilization with 3.3-V or 5-V SAR ADCs. |
Pinout & Package
INA2180A2IDGKR is packaged in an 8-pin VSSOP (DGK) with 3.00 mm × 3.00 mm body size, thermal performance rated at RθJA = 177.9°C/W, and exposed pad optional for enhanced heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Analog output, Channel 1 | Single-ended voltage output proportional to ISENSE × 50 V/V; drives ADC inputs or comparator thresholds directly. |
| 2 (IN–1) | Analog input, Channel 1 negative | Connect to load side of shunt in high-side config or ground side in low-side config; rejects common-mode noise up to 26 V. |
| 3 (IN+1) | Analog input, Channel 1 positive | Connect to bus side of shunt in high-side config or load side in low-side config; defines differential sense node polarity. |
| 4 (GND) | Analog ground reference | Return path for internal biasing and output stage; must be tied to system analog ground with low-impedance connection. |
| 5 (IN+2) | Analog input, Channel 2 positive | Independent input for second shunt; enables simultaneous monitoring of motor phase current and DC-link current. |
| 6 (IN–2) | Analog input, Channel 2 negative | Paired with IN+2 for differential sensing; electrically isolated from Channel 1 inputs to prevent crosstalk. |
| 7 (OUT2) | Analog output, Channel 2 | Second independent output; supports dual-current feedback loops in closed-loop motor control without multiplexing. |
| 8 (VS) | Analog power supply | 2.7–5.5 V supply input; bypass with 0.1-µF ceramic capacitor placed <1 mm from pin to minimize PSRR degradation. |
Key Features
| Feature | Design Value |
|---|---|
| Matched resistor gain network | 50 V/V fixed gain with ±1% max error - eliminates external resistor matching errors and reduces temperature-induced gain drift to ≤20 ppm/°C. |
| Rail-to-rail common-mode input | –0.2 V to +26 V operation independent of VS - enables direct sensing on 24-V industrial buses while powered from 3.3-V logic supply. |
| Dual-channel isolation | Channel separation >110 dB at 100 kHz - prevents signal coupling between motor phase and DC-link current measurements in inverters. |
| Low quiescent current | 500 µA max total for both channels - supports always-on battery monitoring in portable medical devices and IoT edge nodes. |
| Extended temperature range | –40°C to +125°C operation - qualified for under-hood automotive and industrial motor drive environments without derating. |
Applications
| Motor Control | Battery Monitoring |
|---|---|
Use Scenario: Real-time phase current sensing in 3-phase BLDC motor drives using low-side shunts. IC Role / Device Role / Timing Role: Dual-channel current-sense amplifier providing synchronized, isolated analog outputs for each motor leg. Use Value: 210 kHz bandwidth captures PWM-edge transients; ±500 µV offset ensures <±0.5% current measurement error at 10-A full scale with 10-mΩ shunt. |
Use Scenario: Bidirectional current monitoring in 12-V lead-acid or 24-V LiFePO4 battery packs for state-of-charge estimation. IC Role / Device Role / Timing Role: High-side current sensor measuring charge/discharge current with common-mode rejection up to 26 V. Use Value: –0.2 V to +26 V VCM range accommodates full battery voltage swing; 500 µA IQ enables continuous monitoring without significant battery drain. |
| Solar Inverters | Overcurrent Detection |
Use Scenario: DC-string current monitoring in string-level solar inverters with 600-V+ bus voltages. IC Role / Device Role / Timing Role: Isolated high-side current sensor interfacing with isolated ADC via transformer-coupled output stage. Use Value: 26-V common-mode rating supports direct sensing on auxiliary 24-V control rails; 2-V/µs slew rate detects fast fault currents before MOSFET failure. |
Use Scenario: Fast-response overcurrent protection in industrial PLC output modules driving solenoids and valves. IC Role / Device Role / Timing Role: Low-latency current monitor triggering hardware shutdown when sensed current exceeds threshold. Use Value: 210 kHz bandwidth and 2-V/µs slew rate enable detection of sub-10-µs fault events; dual-channel design allows redundant sensing for SIL-2 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA2180A1IDGKR | 20 V/V gain (vs. 50 V/V), 350 kHz bandwidth (vs. 210 kHz), same package and pinout | Better suited for higher shunt voltages (>50 mV) or lower-noise requirements where bandwidth outweighs gain accuracy | Select when sensing larger shunt values (e.g., 50 mΩ) or requiring faster transient response in low-current applications |
| INA240A2IDR | 500-kHz bandwidth, ±120-µV offset, SOIC-8 package (5.00 mm × 6.20 mm), higher supply current (1.8 mA) | Targeted at high-accuracy, high-speed applications like servo drives where offset and bandwidth dominate cost constraints | Choose for demanding industrial motion control where <±0.1% current error and 500-kHz response justify larger footprint and higher power |
Compared with INA2180A1IDGKR and INA240A2IDR, the INA2180A2IDGKR balances mid-range gain accuracy, thermal efficiency in VSSOP-8, and ultra-low quiescent current-making it optimal for space-constrained, battery-sensitive dual-channel sensing where 210 kHz bandwidth suffices.
Availability
INA2180A2IDGKR is available at Aetrix Electronics and suitable for motor control, battery monitoring, and solar inverter applications requiring stable component supply, extended temperature operation, and dual-channel current sensing in compact VSSOP-8 packaging.
Supply support for INA2180A2IDGKR 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, designed specifically for cost-optimized, high-voltage bidirectional current monitoring in industrial, automotive, and renewable energy systems.
FAQ
What is the maximum common-mode voltage supported by the INA2180A2IDGKR?
The INA2180A2IDGKR supports a common-mode input voltage range of –0.2 V to +26 V, independent of its 2.7–5.5 V supply voltage. This allows direct sensing on 24-V industrial buses or automotive battery rails without external level-shifting circuitry. The specification is guaranteed across the full –40°C to +125°C operating temperature range and applies to both IN+ and IN– inputs simultaneously.
Does the INA2180A2IDGKR require external gain-setting resistors?
No, the INA2180A2IDGKR does not require external gain-setting resistors. It integrates a factory-trimmed, matched thin-film resistor network configured for 50 V/V fixed gain. This eliminates external component count, reduces PCB area, and ensures ±1% maximum gain error and low temperature drift (≤20 ppm/°C), unlike discrete op-amp-based solutions that rely on external resistor matching.
Can the INA2180A2IDGKR be used in high-side current sensing configurations?
Yes, the INA2180A2IDGKR is explicitly designed for both high-side and low-side current sensing. In high-side configuration, connect IN+ to the bus-voltage side of the shunt and IN– to the load side. Its –0.2 V to +26 V common-mode range enables reliable operation even when the shunt sits between a 24-V rail and a switching FET, with no need for isolated power supplies or level translators.
What is the typical quiescent current consumption of the INA2180A2IDGKR?
The INA2180A2IDGKR draws a maximum of 500 µA quiescent current across –40°C to +125°C, with typical consumption of 355 µA at 25°C and VCM = 12 V. This ultra-low power enables continuous current monitoring in battery-powered equipment such as portable test instruments and wireless sensor nodes without compromising runtime.
Which package options are available for the INA2180A2IDGKR?
The INA2180A2IDGKR is exclusively available in the 8-pin VSSOP (DGK) package, measuring 3.00 mm × 3.00 mm with 0.65-mm lead pitch. This thermally enhanced surface-mount package provides RθJA = 177.9°C/W and supports reflow soldering per JEDEC J-STD-020. No WSON or other variants are offered for the A2 gain version - only the DGK package is specified in TI's official documentation and ordering database.
INA2180A2IDGKR 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:
- -
- -3db Bandwidth:
- 210 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-VSSOP
INA2180A2IDGKR FAQ
1.How can I place an order for INA2180A2IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for INA2180A2IDGKR 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 INA2180A2IDGKR reliable?
The price and inventory of INA2180A2IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA2180A2IDGKR is usually 5 days.
3.What payment methods are accepted for INA2180A2IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA2180A2IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA2180A2IDGKR?
INA2180A2IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA2180A2IDGKR 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 INA2180A2IDGKR?
For technical support, including INA2180A2IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA2180A2IDGKR requirements.
6.How does Aetrix verify that INA2180A2IDGKR is sourced from the original manufacturer or authorized distributors?
All INA2180A2IDGKR 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 INA2180A2IDGKR meets industry standards.
7.What is the process for return or replacement of INA2180A2IDGKR?
All INA2180A2IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with INA2180A2IDGKR, 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 INA2180A2IDGKR part is unused and in its original packaging.
Return procedure for INA2180A2IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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