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Texas Instruments INA2180A4IDGKT
- Part No.:
- INA2180A4IDGKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
INA2180A4IDGKT.pdf
- Description:
- IC CURR SENSE 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:456
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Product details
Overview
INA2180A4IDGKT 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 INA2180A4IDGKT datasheet, INA2180A4IDGKT pinout, INA2180A4IDGKT application, or INA2180A4IDGKT 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 INA2180A4IDGKT integrates matched thin-film resistor networks to achieve ±1% max gain error and 1 µV/°C max offset drift across –40°C to +125°C. Its rail-to-rail output stage delivers 2 V/µs slew rate and supports 105 kHz small-signal bandwidth (A4 variant) under 10 pF load.
It operates from a single 2.7 V to 5.5 V supply, draws ≤500 µA quiescent current, and maintains CMRR ≥84 dB over its full –0.2 V to +26 V common-mode range-enabling accurate sensing in high-side configurations where bus voltage exceeds supply rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 200 V/V fixed-converts 10 mV sense voltage to 2 V output, enabling direct interface with 2.0 V full-scale ADCs without external scaling. |
| Common-mode range | –0.2 V to +26 V-supports high-side sensing on 24-V industrial buses and low-side sensing with ground-referenced shunts. |
| Offset voltage | ±500 µV max at VCM = 12 V-limits current measurement error to ≤0.5 mΩ at 1 A sense current with 10 mΩ shunt. |
| Slew rate | 2 V/µs-ensures <500 ns response to 1-V output step, critical for fast overcurrent fault detection in motor drives. |
| Supply voltage | 2.7 V to 5.5 V-compatible with 3.3 V and 5 V microcontroller I/O domains without level-shifting. |
| Quiescent current | 500 µA max-enables dual-channel current monitoring in power-constrained battery-backed systems. |
| Bandwidth | 105 kHz (A4 device, CL = 10 pF)-sufficient for PWM-based motor control up to 20 kHz switching with >5× oversampling. |
Pinout & Package
INA2180A4IDGKT is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm, with exposed thermal pad (optional GND connection) and surface-mount compatibility for automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 | Analog output (channel 1) | Provides 200× amplified voltage across RSENSE; rail-to-rail swing enables full dynamic range utilization of downstream ADCs. |
| IN–1 | Negative input (channel 1) | Connects to load side of sense resistor in high-side config or ground side in low-side config-defines current direction polarity. |
| IN+1 | Positive input (channel 1) | Connects to bus-voltage side of sense resistor in high-side config or load side in low-side config-establishes differential sensing node. |
| GND | Analog ground reference | Common return path for both channels; must be tied to system analog ground with low-impedance layout to minimize noise coupling. |
| OUT2 | Analog output (channel 2) | Independent 200× output for second current path-enables simultaneous phase-current monitoring in 3-phase inverters. |
| IN–2 | Negative input (channel 2) | Second differential input pair-fully isolated from channel 1 to prevent crosstalk; channel separation >110 dB at 10 kHz. |
| IN+2 | Positive input (channel 2) | Matches IN+1 functionality for second channel-supports identical high-/low-side topology as channel 1. |
| VS | Power supply input | Single 2.7–5.5 V rail powers both amplifiers; bypass capacitor (0.1 µF) required at VS pin to suppress supply noise. |
Key Features
| Feature | Design Value |
|---|---|
| Matched internal gain resistors | Eliminates external resistor matching errors and reduces temperature-induced gain drift to ≤20 ppm/°C. |
| Rail-to-rail output stage | Delivers 0.0005 V to (VS – 0.03 V) swing-maximizes usable output range for 12-bit ADCs operating at 3.3 V. |
| High CMRR (≥84 dB) | Maintains accuracy despite 26-V common-mode transients-critical for noisy motor drive environments with fast dv/dt edges. |
| Low quiescent current (≤500 µA) | Enables always-on current monitoring in battery-powered equipment without compromising runtime. |
| Extended temperature range | Specified from –40°C to +125°C-qualified for under-hood automotive and industrial control cabinet applications. |
Applications
| Motor Control | Battery Monitoring |
|---|---|
Use Scenario: Real-time phase current sensing in BLDC motor drivers using shunt resistors on low-side FETs. IC Role / Device Role / Timing Role: Dual-channel amplifier measures two independent motor phases simultaneously, feeding synchronized analog outputs to MCU ADC inputs. Use Value: 105 kHz bandwidth captures PWM ripple; 200 V/V gain resolves 5 mA current steps with 10 mΩ shunt and 12-bit ADC. |
Use Scenario: Bidirectional current monitoring in 12-V lead-acid or Li-ion battery packs during charge/discharge cycles. IC Role / Device Role / Timing Role: High-side sensing on battery positive terminal enables ground-referenced system design and avoids shunt grounding issues. Use Value: –0.2 V to +26 V common-mode range accommodates battery voltage sag and surge; ±500 µV offset ensures ≤0.5% current measurement error. |
| Solar Inverters | Overcurrent Detection |
Use Scenario: DC-link current monitoring in string inverters with 600-V PV arrays and isolated gate drivers. IC Role / Device Role / Timing Role: Low-side shunt sensing on inverter half-bridge outputs provides fast feedback for MPPT and fault protection logic. Use Value: 2 V/µs slew rate detects 10-A overcurrent events within 200 ns; dual-channel capability supports redundant sensing for safety-critical designs. |
Use Scenario: Instantaneous trip detection in programmable logic controller (PLC) output modules driving solenoids or relays. IC Role / Device Role / Timing Role: Amplifies voltage across 50 mΩ shunt to trigger comparator-based shutdown before MOSFET thermal failure. Use Value: 105 kHz bandwidth responds to sub-millisecond current surges; ±1% gain error ensures consistent trip thresholds across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA2180A4IDSGR | Same electrical specs, but in 2.00 mm × 2.00 mm WSON-8 package with thermal pad (must be connected to GND). | Higher power density and improved thermal performance (RθJA = 74.9°C/W vs. 177.9°C/W), suitable for space-constrained PCBs. | Select when board area is limited and thermal management requires lower junction-to-ambient resistance. |
| INA240A4D | 200 V/V gain, but wider –4 V to +80 V common-mode range, higher 1000-kHz bandwidth, and ±120 µV max offset at 12 V VCM. | Targeted at high-voltage industrial drives and EV traction inverters requiring enhanced accuracy and extended voltage range. | Choose for >40 V bus applications or when <0.1% current measurement error is mandatory; not drop-in due to different pinout and supply requirements. |
Compared with INA2180A4IDGKT, the WSON-packaged INA2180A4IDSGR offers identical performance in a smaller footprint with better thermal behavior, while the INA240A4D delivers superior accuracy and voltage range at the cost of higher price and non-compatible layout.
Availability
INA2180A4IDGKT is available at Aetrix Electronics and suitable for motor control, battery monitoring, and solar inverter designs requiring stable component supply, long-term production continuity, and guaranteed traceability.
Supply support for INA2180A4IDGKT 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 cost-optimized current-sense amplifier product line, designed specifically for high-volume industrial and consumer applications demanding accuracy, wide common-mode range, and low power consumption without external gain-setting components.
FAQ
What is the maximum common-mode voltage supported by the INA2180A4IDGKT?
The INA2180A4IDGKT supports a common-mode input voltage range of –0.2 V to +26 V, enabling reliable operation in high-side configurations on 24-V industrial buses and low-side sensing with ground-referenced shunts. This specification is guaranteed across the full –40°C to +125°C temperature range and does not depend on the 2.7–5.5 V supply voltage.
Does the INA2180A4IDGKT require external gain-setting resistors?
No, the INA2180A4IDGKT integrates a precision-matched internal resistor network for 200 V/V fixed gain. This eliminates external resistor selection, matching, and temperature drift concerns-reducing bill-of-materials count and improving long-term accuracy stability compared to discrete op-amp solutions.
What is the typical bandwidth and slew rate of the INA2180A4IDGKT?
The INA2180A4IDGKT has a small-signal bandwidth of 105 kHz (measured at CL = 10 pF) and a large-signal slew rate of 2 V/µs. These values enable accurate capture of fast current transients in motor control and overcurrent protection applications while maintaining stability with standard 0.1-µF bypass capacitors.
Can the INA2180A4IDGKT operate from a 3.3-V supply?
Yes, the INA2180A4IDGKT is fully specified for operation from 2.7 V to 5.5 V, including standard 3.3-V logic supplies. Its rail-to-rail output stage delivers 0.0005 V to (VS – 0.03 V) swing at 3.3 V, ensuring >3.2 V output range for optimal 12-bit ADC utilization without external level-shifting circuitry.
How is channel isolation maintained in the dual-channel INA2180A4IDGKT?
The INA2180A4IDGKT achieves >110 dB channel separation at 10 kHz through physically isolated input and output paths, separate internal bias networks, and optimized substrate layout. This prevents crosstalk between channels during simultaneous high-dv/dt events-essential for accurate multi-phase current measurement in inverters and servo drives.
INA2180A4IDGKT 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:
- 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-VSSOP
INA2180A4IDGKT FAQ
1.How can I place an order for INA2180A4IDGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for INA2180A4IDGKT 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 INA2180A4IDGKT reliable?
The price and inventory of INA2180A4IDGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA2180A4IDGKT is usually 5 days.
3.What payment methods are accepted for INA2180A4IDGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA2180A4IDGKT transactions.
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4.How is shipping managed for INA2180A4IDGKT?
INA2180A4IDGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA2180A4IDGKT 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 INA2180A4IDGKT?
For technical support, including INA2180A4IDGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA2180A4IDGKT requirements.
6.How does Aetrix verify that INA2180A4IDGKT is sourced from the original manufacturer or authorized distributors?
All INA2180A4IDGKT 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 INA2180A4IDGKT meets industry standards.
7.What is the process for return or replacement of INA2180A4IDGKT?
All INA2180A4IDGKT units undergo pre-shipment inspection (PSI). If there is an issue with INA2180A4IDGKT, 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 INA2180A4IDGKT part is unused and in its original packaging.
Return procedure for INA2180A4IDGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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