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Texas Instruments INA2180A1IDGKR
- Part No.:
- INA2180A1IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
INA2180A1IDGKR.pdf
- Description:
- IC CURR SENSE 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,609
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Product details
Overview
INA2180A1IDGKR from Texas Instruments is a dual-channel, high-side/low-side current-sense amplifier with 20 V/V fixed gain, 350 kHz bandwidth, ±150 µV max offset at 0 V common-mode, and operation from 2.7 V to 5.5 V supply. It enables precise bidirectional current monitoring in motor control and battery management systems where bus voltages reach up to +26 V while maintaining accuracy across –40°C to +125°C.
For engineers reviewing the INA2180A1IDGKR datasheet, INA2180A1IDGKR pinout, INA2180A1IDGKR application, or INA2180A1IDGKR equivalent, key selection criteria include common-mode range (–0.2 V to +26 V), gain error (±1% max), quiescent current (500 µA max), and VSSOP-8 package compatibility with space-constrained PCB layouts.
Technical Context
The INA2180A1IDGKR integrates matched thin-film resistor networks for stable 20 V/V gain, minimizing temperature-induced gain drift (1.5 ppm/°C). Its input stage operates with rail-to-rail output swing and supports differential sensing across shunt resistors independent of supply voltage.
Designed for bidirectional current measurement, it features separate IN+ and IN− inputs per channel, enabling flexible placement on either side of the sense resistor. The device maintains CMRR ≥84 dB over –40°C to +125°C and delivers 2 V/µs slew rate for fast transient response in overcurrent detection circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 20 V/V - fixed ratio converts 10-mV shunt drop to 200-mV output, simplifying ADC interface design |
| Bandwidth | 350 kHz - supports accurate current sampling in PWM-driven motor phases up to ~175 kHz switching |
| Common-mode range | –0.2 V to +26 V - enables direct sensing on 24-V industrial buses without level-shifting circuitry |
| Offset voltage | ±150 µV max at VCM = 0 V - ensures <0.15% full-scale error for 100-mΩ shunt at 1-A load |
| Quiescent current | 500 µA max - allows 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 or 3.3-V/5-V system rails |
| Operating temperature | –40°C to +125°C - qualified for under-hood automotive and industrial power modules |
Pinout & Package
The INA2180A1IDGKR is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm with exposed thermal pad (optional GND connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 | Analog output, Channel 1 | Delivers amplified voltage proportional to ISENSE × 20; drives ADC or comparator directly |
| IN−1 | Analog input, Channel 1 negative | Connects to load side of shunt in high-side config or ground side in low-side config |
| IN+1 | Analog input, Channel 1 positive | Connects to bus-voltage side of shunt in high-side config or load side in low-side config |
| GND | Analog ground reference | Provides return path for internal biasing; must be low-impedance connection to system ground plane |
| OUT2 | Analog output, Channel 2 | Independent output for second current path; no crosstalk (≥110 dB channel separation at 1 kHz) |
| IN−2 | Analog input, Channel 2 negative | Isolated input node for second shunt; supports dual-phase motor or redundant sensing |
| IN+2 | Analog input, Channel 2 positive | Paired with IN−2 for differential measurement; same CM range and gain as Channel 1 |
| VS | Power supply | Accepts 2.7–5.5 V; bypass capacitor required between VS and GND for stability |
Key Features
| Feature | Design Value |
|---|---|
| Matched resistor gain network | Eliminates external gain-setting components and reduces gain error drift to 1.5 ppm/°C |
| Rail-to-rail output swing | Swings within 30 mV of VS and 0.5 mV of GND, maximizing dynamic range for 3.3-V ADCs |
| High CMRR | ≥84 dB over full temperature range ensures immunity to bus noise in noisy 24-V industrial environments |
| Low quiescent current | 500 µA max enables continuous current monitoring in energy-sensitive applications like portable tools |
| Robust ESD rating | ±3000 V HBM protects against handling damage during assembly and field service |
Applications
| Motor Control | Battery Monitoring |
|---|---|
Use Scenario: Real-time phase current sensing in BLDC motor drivers using PWM frequencies up to 20 kHz. IC Role / Device Role / Timing Role: Dual-channel amplifier measures both high-side and low-side shunt voltages synchronously to reconstruct instantaneous motor current. Use Value: 350-kHz bandwidth captures fast current transients during commutation, reducing torque ripple by >15% versus lower-bandwidth alternatives. | Use Scenario: Cell-level current monitoring in 4S lithium-ion battery packs with 16-V nominal bus voltage. IC Role / Device Role / Timing Role: High-side sensing on each cell string enables accurate Coulomb counting without ground disruption. Use Value: –0.2 V to +26 V common-mode range accommodates full pack voltage swing while maintaining ±150 µV offset stability. |
| Power Management | Solar Inverters |
Use Scenario: Input/output current supervision in isolated DC-DC converters for telecom power supplies. IC Role / Device Role / Timing Role: Low-side sensing on primary-side MOSFET source and secondary-side rectifier cathode. Use Value: Dual-channel integration eliminates two discrete amplifiers, reducing BOM count and layout area by 35%. | Use Scenario: String current monitoring in central inverters with 600-V DC input and distributed MPPT stages. IC Role / Device Role / Timing Role: High-side sensing on PV string outputs to detect partial shading or module failure. Use Value: 26-V common-mode tolerance allows direct interface to string-level sense resistors without isolation amplifiers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA2180A2IDGKR | 50 V/V gain vs. 20 V/V; identical bandwidth, offset, and package | Better resolution for low-current (<500 mA) sensing but reduced dynamic range for high-current (>5 A) use cases | Select when shunt voltage drop is ≤4 mV at full scale and higher gain improves SNR over ADC quantization noise |
| INA240A1D | Higher precision (±12 µV offset), wider common-mode (–4 V to +80 V), but 10× higher quiescent current (5 mA) | Required for ultra-low-offset industrial current loops; not suitable for battery-critical designs | Choose only when sub-0.01% offset accuracy is mandatory and power budget permits 10× IQ increase |
Compared with INA2180A2IDGKR and INA240A1D, the INA2180A1IDGKR offers optimal balance of gain, bandwidth, and power for cost-sensitive motor and battery applications where 20 V/V scaling matches standard shunt values and 500 µA IQ enables long-term monitoring.
Availability
INA2180A1IDGKR is available at Aetrix Electronics and suitable for motor control, battery monitoring, and solar inverter applications requiring stable component supply, consistent parametric performance across production lots, and long-term industrial lifecycle support.
Supply support for INA2180A1IDGKR 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 company specializing in analog and embedded processing technologies, with leadership in precision signal chain 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 wide common-mode range and stable gain are critical.
FAQ
What is the maximum common-mode voltage the INA2180A1IDGKR can handle?
The INA2180A1IDGKR supports a common-mode input voltage range of –0.2 V to +26 V. This allows direct sensing on 24-V industrial buses or high-side configurations in solar inverters without external level-shifting circuitry. The specification is guaranteed over the full operating temperature range (–40°C to +125°C) and applies independently to both channels of the INA2180A1IDGKR.
Does the INA2180A1IDGKR require external gain-setting resistors?
No, the INA2180A1IDGKR integrates a precision-matched thin-film resistor network for its fixed 20 V/V gain. This eliminates external components, reduces board area, and minimizes gain error drift (1.5 ppm/°C). The internal network is laser-trimmed during manufacturing, ensuring ±1% max gain error across temperature and supply variations for the INA2180A1IDGKR.
What package type is used for the INA2180A1IDGKR?
The INA2180A1IDGKR uses an 8-pin VSSOP package (DGK), measuring 3.00 mm × 3.00 mm with a thermal pad. This surface-mount package supports automated assembly and provides adequate thermal dissipation for continuous operation at 500 µA quiescent current. The pinout matches TI's standard dual-channel current-sense amplifier layout, ensuring compatibility with existing footprint libraries for the INA2180A1IDGKR.
Can the INA2180A1IDGKR be used for bidirectional current sensing?
Yes, the INA2180A1IDGKR supports bidirectional current sensing through proper shunt resistor placement and output referencing. When the shunt voltage polarity reverses, the output swings below mid-supply (for single-ended readout) or requires a bipolar supply or AC-coupled interface. Its symmetric input structure and rail-to-rail output (within 30 mV of VS and 0.5 mV of GND) enable accurate reconstruction of direction and magnitude for the INA2180A1IDGKR.
What is the typical quiescent current of the INA2180A1IDGKR?
The INA2180A1IDGKR draws a maximum quiescent current of 500 µA at 25°C and full common-mode range, with a typical value of 355 µA under standard test conditions (VSENSE = 10 mV, VS = 5 V). This low power consumption enables always-on current monitoring in battery-backed systems while maintaining full 350-kHz bandwidth and ±150 µV offset performance for the INA2180A1IDGKR.
INA2180A1IDGKR 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:
- 350 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
INA2180A1IDGKR FAQ
1.How can I place an order for INA2180A1IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for INA2180A1IDGKR 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 INA2180A1IDGKR reliable?
The price and inventory of INA2180A1IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA2180A1IDGKR is usually 5 days.
3.What payment methods are accepted for INA2180A1IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA2180A1IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA2180A1IDGKR?
INA2180A1IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA2180A1IDGKR 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 INA2180A1IDGKR?
For technical support, including INA2180A1IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA2180A1IDGKR requirements.
6.How does Aetrix verify that INA2180A1IDGKR is sourced from the original manufacturer or authorized distributors?
All INA2180A1IDGKR 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 INA2180A1IDGKR meets industry standards.
7.What is the process for return or replacement of INA2180A1IDGKR?
All INA2180A1IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with INA2180A1IDGKR, 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 INA2180A1IDGKR part is unused and in its original packaging.
Return procedure for INA2180A1IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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