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Texas Instruments INA2180A2IDSGT
- Part No.:
- INA2180A2IDSGT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
INA2180A2IDSGT.pdf
- Description:
- IC CURRENT SENSE 2 CIRCUIT 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:770
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Product details
Overview
INA2180A2IDSGT 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 small-signal 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 INA2180A2IDSGT datasheet, INA2180A2IDSGT pinout, INA2180A2IDSGT application, or INA2180A2IDSGT equivalent, this page delivers verified package mapping (8-pin WSON), channel-isolated pin functions, real-world accuracy limits (±1% gain error, 1 µV/°C drift), and validated alternatives for dual-channel 50× current sensing in industrial power systems.
Technical Context
The INA2180A2IDSGT integrates two matched-resistor gain networks (50 V/V per channel) to minimize gain error and temperature drift across its full –40°C to +125°C operating range. Its input stage supports true high-side and low-side sensing without level-shifting, maintaining accuracy even when VCM exceeds VS by >20 V.
Each channel features independent IN+ and IN– inputs referenced to GND, with rail-to-rail output swing (VS – 30 mV / GND + 0.5 mV) and 2 V/µs slew rate-enabling fast transient response in overcurrent detection and PWM-driven loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 50 V/V fixed-converts 10-mV sense voltage to 500-mV output, simplifying ADC interface design |
| Common-mode range | –0.2 V to +26 V-supports direct sensing on 24-V bus rails without external level shifters |
| Offset voltage | ±500 µV max at VCM = 12 V-limits current measurement error to <±0.5% at 10-mΩ shunt, 1-A load |
| Bandwidth | 210 kHz-captures fast current transients in BLDC motor commutation (≤4.7 µs rise time) |
| Quiescent current | 500 µA max-enables always-on monitoring in battery-powered systems with minimal standby drain |
| Supply voltage | 2.7 V to 5.5 V-compatible with single Li-ion, 3.3-V logic, and 5-V microcontroller domains |
| Operating temperature | –40°C to +125°C-qualified for under-hood automotive and industrial motor drive environments |
Pinout & Package
INA2180A2IDSGT uses an 8-pin WSON package (2.0 mm × 2.0 mm, 0.5-mm pitch) with exposed thermal pad (optional GND connection). Pinout matches DGK (VSSOP) functional assignment but differs physically.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT1 | Analog output | Channel 1 voltage output-drives ADC or comparator; rail-to-rail swing minimizes headroom loss |
| 2: IN–1 | Analog input | Channel 1 negative input-connects to load side of shunt in high-side config or ground side in low-side |
| 3: IN+1 | Analog input | Channel 1 positive input-connects to bus side of shunt in high-side or load side in low-side |
| 4: GND | Analog ground | Reference for all inputs/outputs; connects to PCB ground plane under thermal pad for thermal stability |
| 5: IN+2 | Analog input | Channel 2 positive input-fully isolated from Channel 1; enables independent dual-rail monitoring |
| 6: IN–2 | Analog input | Channel 2 negative input-no crosstalk with Channel 1 (120 dB isolation at 1 kHz) |
| 7: OUT2 | Analog output | Channel 2 voltage output-identical specs to OUT1; supports simultaneous dual-current readout |
| 8: VS | Power supply | 2.7–5.5 V analog supply-decoupling capacitor (0.1 µF) required at pin for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Matched resistor gain network | 50 V/V per channel with ±1% max gain error-eliminates external precision resistors and reduces layout sensitivity |
| High CMRR | 84–100 dB over –40°C to +125°C-rejects bus noise in noisy 24-V industrial environments |
| Low offset drift | 1 µV/°C max-ensures stable zero-current baseline across temperature without calibration |
| Fast slew rate | 2 V/µs-preserves fidelity of pulsed current waveforms in PWM motor drives |
| Channel separation | ≥120 dB at 1 kHz-prevents cross-talk between dual channels monitoring separate power rails |
Applications
| Motor Phase Current Sensing | Battery Pack Cell Monitoring |
|---|---|
Use Scenario: Real-time phase current measurement in 3-phase BLDC motor drives using low-side shunts. IC Role / Device Role / Timing Role: Dual-channel current-sense amplifier providing synchronized, isolated outputs for two motor phases. Use Value: 210 kHz bandwidth captures commutation transients; ±500 µV offset ensures <±0.5% error at 1-A nominal current. |
Use Scenario: Individual cell current monitoring in 12S lithium-ion battery packs with 24-V nominal bus. IC Role / Device Role / Timing Role: High-side current monitor for each parallel cell group, rejecting common-mode noise from switching regulators. Use Value: –0.2 V to +26 V VCM range accommodates full pack voltage; 500 µA IQ enables continuous monitoring without excessive drain. |
| Industrial Power Supply OCP | Solar Inverter DC Link Monitoring |
Use Scenario: Overcurrent protection in programmable DC power supplies with adjustable current limits. IC Role / Device Role / Timing Role: Fast-response current sensor feeding comparator or microcontroller ADC for trip decision. Use Value: 2 V/µs slew rate ensures sub-microsecond output response to fault currents; ±1% gain error enables precise threshold setting. |
Use Scenario: Bidirectional DC link current sensing in string inverters with 600-V PV arrays and 400-V DC bus. IC Role / Device Role / Timing Role: High-side current monitor referenced to floating DC bus, interfacing with isolated ADC. Use Value: 26-V common-mode rating allows direct connection to bus via resistive divider; matched gain eliminates calibration per unit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 50× current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA2180A2IDGKT | Same electrical specs; 8-pin VSSOP (3.0 mm × 3.0 mm) instead of WSON (2.0 mm × 2.0 mm) | Requires larger PCB footprint; better thermal dissipation (RθJA = 177.9°C/W vs. 74.9°C/W) | Select for manual assembly or thermal-limited designs where board space permits |
| MAX40056ATA+T | Single-channel, 50 V/V, 400 kHz BW, ±150 µV max offset at 12 V-but no dual-channel integration | Requires two devices for dual-rail sensing; higher system-level BOM count and layout complexity | Select only if higher bandwidth or lower offset is critical and dual-channel integration is not required |
Compared with INA2180A2IDSGT, the VSSOP variant offers easier rework but consumes 2.25× more area, while the MAX40056 requires doubling component count and routing-making INA2180A2IDSGT optimal for space-constrained dual-rail monitoring where 210 kHz BW and ±500 µV offset meet system requirements.
Availability
INA2180A2IDSGT 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 WSON packaging.
Supply support for INA2180A2IDSGT 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-accuracy bidirectional current measurement in industrial, automotive, and renewable energy systems.
FAQ
What is the maximum common-mode voltage supported by the INA2180A2IDSGT?
The INA2180A2IDSGT supports a common-mode input voltage range of –0.2 V to +26 V, enabling direct sensing on 24-V industrial buses and battery stacks without external level-shifting circuitry. This specification is guaranteed across the full –40°C to +125°C operating temperature range and is independent of the 2.7–5.5 V supply voltage applied to the INA2180A2IDSGT.
Does the INA2180A2IDSGT require external gain-setting resistors?
No, the INA2180A2IDSGT integrates a precision-matched internal resistor network configured for 50 V/V gain. This eliminates the need for external resistors, reduces layout sensitivity, and ensures ±1% maximum gain error across temperature-directly supporting accurate current-to-voltage conversion in the INA2180A2IDSGT without calibration.
What is the typical quiescent current consumption of the INA2180A2IDSGT?
The INA2180A2IDSGT draws a maximum of 500 µA quiescent current at TA = –40°C to +125°C and VSENSE = 10 mV. At room temperature (25°C), typical IQ is 355 µA. This ultra-low power enables always-on current monitoring in battery-backed systems without compromising runtime-critical for applications like portable test equipment and uninterruptible power supplies using the INA2180A2IDSGT.
Can the INA2180A2IDSGT be used for both high-side and low-side current sensing?
Yes, the INA2180A2IDSGT supports both configurations. Its –0.2 V to +26 V common-mode range allows high-side sensing on positive rails up to 26 V, while its ability to handle negative common-mode voltages enables low-side sensing with ground-referenced shunts. Each channel operates independently, making the INA2180A2IDSGT ideal for dual-rail systems requiring simultaneous high- and low-side measurements.
What package type is used for the INA2180A2IDSGT, and what are its thermal characteristics?
The INA2180A2IDSGT uses an 8-pin WSON package (2.0 mm × 2.0 mm, 0.5-mm pitch) with an exposed thermal pad. Its junction-to-ambient thermal resistance (RθJA) is 74.9°C/W, significantly lower than the VSSOP variant (177.9°C/W), enabling higher power density in compact layouts. The thermal pad may be left floating or connected to GND for improved heat dissipation-key for sustained operation in motor drive and solar inverter applications using the INA2180A2IDSGT.
INA2180A2IDSGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- 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-WSON (2x2)
INA2180A2IDSGT FAQ
1.How can I place an order for INA2180A2IDSGT through Aetrix?
Please submit a Request for Quotation (RFQ) for INA2180A2IDSGT 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 INA2180A2IDSGT reliable?
The price and inventory of INA2180A2IDSGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA2180A2IDSGT is usually 5 days.
3.What payment methods are accepted for INA2180A2IDSGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA2180A2IDSGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA2180A2IDSGT?
INA2180A2IDSGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA2180A2IDSGT 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 INA2180A2IDSGT?
For technical support, including INA2180A2IDSGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA2180A2IDSGT requirements.
6.How does Aetrix verify that INA2180A2IDSGT is sourced from the original manufacturer or authorized distributors?
All INA2180A2IDSGT 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 INA2180A2IDSGT meets industry standards.
7.What is the process for return or replacement of INA2180A2IDSGT?
All INA2180A2IDSGT units undergo pre-shipment inspection (PSI). If there is an issue with INA2180A2IDSGT, 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 INA2180A2IDSGT part is unused and in its original packaging.
Return procedure for INA2180A2IDSGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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