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Texas Instruments INA183A3IDBVR
- Part No.:
- INA183A3IDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
INA183A3IDBVR.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,960
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Product details
Overview
INA183A3IDBVR from Texas Instruments is a high-precision, zero-drift current-sense amplifier optimized for unidirectional high-side sensing in 2.7-V to 26-V power rails. It delivers 200 V/V fixed gain, ±170 μV max offset voltage, 0.4% max gain error over temperature, 14 kHz bandwidth, and operates with only 130 μA quiescent current drawn from the IN+ pin. It enables accurate 10-mV full-scale shunt measurements in server power monitoring.
For engineers reviewing the INA183A3IDBVR datasheet, INA183A3IDBVR pinout, INA183A3IDBVR application, or INA183A3IDBVR equivalent, key selection criteria include its 200 V/V gain option, SOT-23 (DBV) 5-pin package, 2.7–26 V common-mode range, and zero-drift architecture enabling low-offset, low-drift current measurement without external power supply.
Technical Context
The INA183A3IDBVR uses a zero-drift chopper-stabilized topology to achieve ±170 μV max input offset and 0.5 μV/°C max offset drift across –40°C to +125°C. Its gain is set by tightly matched internal resistor networks, delivering 200 V/V with ≤10 ppm/°C gain drift and ±0.4% max gain error over temperature.
It operates in single-supply mode powered directly from the IN+ pin - no separate VCC required - supporting high-side sensing where the device sits between the supply rail and shunt resistor. Input common-mode range extends from 2.7 V to 26 V, and output swings within 50 mV of IN+ and 5 mV above GND under load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 200 V/V - fixed, precision ratio enabling direct conversion of 10-mV shunt drop to 2-V output signal. |
| Offset Voltage (max) | ±170 μV - referred-to-input; supports accurate low-current detection with minimal shunt resistor power loss. |
| Gain Error (max) | ±0.4% over –40°C to +125°C - ensures consistent scaling across industrial temperature range without calibration. |
| Common-Mode Range | 2.7 V to 26 V - allows direct placement on 12-V server rails or 24-V industrial supplies without level-shifting. |
| Bandwidth | 14 kHz at CL = 10 pF - sufficient for DC–10 kHz current monitoring in power supply fault detection and load profiling. |
| Quiescent Current | 130 μA max - drawn solely from IN+ pin; eliminates need for auxiliary supply and reduces system standby power. |
| Input Bias Current | 40 μA max - low enough to avoid significant error with typical 1–10 mΩ shunt resistors. |
Pinout & Package
INA183A3IDBVR is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, with moisture sensitivity level (MSL) 2–260°C/1 year, lead finish Sn, and RoHS-compliant construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 2) | Analog ground reference | Both pins must be connected to system ground; provides return path for internal circuitry and stabilizes offset performance. |
| IN– (Pin 4) | Inverting input | Connected to load side of shunt resistor; senses voltage drop relative to IN+; high CMRR rejects rail noise. |
| IN+ (Pin 5) | Non-inverting input & power source | Connected to supply side of shunt; supplies operating current (≤130 μA); defines common-mode voltage and upper output swing limit. |
| OUT (Pin 3) | Analog output | Voltage-output proportional to shunt voltage × 200; swings 5 mV above GND to within 50 mV of IN+ under 10-kΩ load. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Enables ±170 μV max offset and 0.5 μV/°C max drift - critical for stable millivolt-level shunt measurements over temperature. |
| Single-supply operation from IN+ | Eliminates need for dedicated VCC; simplifies layout in high-side configurations where only the rail voltage is available. |
| 200 V/V fixed gain | Optimized for 10-mV full-scale shunt drops - permits use of lower-value, lower-power shunts while maintaining SNR and ADC resolution. |
| High CMRR (120 dB typ) | Maintains accuracy despite large common-mode transients on noisy power rails, such as those in server VRMs or telecom PSUs. |
| Robust input overload recovery | Returns to valid output within ~30 μs after differential overvoltage removal - supports reliable fault detection without latch-up or long settling delays. |
Applications
| Server Power Monitoring | Industrial 24-V Power Supply |
|---|---|
Use Scenario: Real-time current monitoring on 12-V server bus feeding CPU, memory, and storage subsystems. IC Role / Device Role / Timing Role: High-side current-sense amplifier converting shunt voltage to scaled analog output for ADC sampling or comparator-based overcurrent shutdown. Use Value: Enables sub-ampere fault detection with 10-mV shunt drop, minimizing I²R loss and thermal impact on dense PCB layouts. | Use Scenario: Overcurrent protection and load profiling in programmable 24-V industrial power supplies. IC Role / Device Role / Timing Role: Unidirectional high-side sense amplifier providing isolated current feedback to microcontroller or analog control loop. Use Value: 26-V common-mode capability allows direct connection to 24-V rail; 200 V/V gain ensures full-scale output even with low-resistance shunts (<5 mΩ). |
| Battery Management System | Telecom Rectifier Module |
Use Scenario: Charge/discharge current sensing in 12-V LiFePO₄ battery packs for UPS or edge computing nodes. IC Role / Device Role / Timing Role: Precision current transducer interfacing with battery fuel gauge IC or host MCU via analog input. Use Value: Low 130 μA quiescent current preserves standby battery life; ±0.4% gain error ensures SOC estimation accuracy over temperature. | Use Scenario: Output current monitoring in -48 V telecom rectifier modules with distributed power architecture. IC Role / Device Role / Timing Role: High-side current monitor feeding analog control circuitry for constant-current regulation and hot-swap sequencing. Use Value: 2.7–26 V common-mode range accommodates intermediate bus voltages; 14 kHz bandwidth supports fast transient response during load steps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA240A3D | 200 V/V gain, wider common-mode (–4 to 80 V), higher quiescent current (2.4 mA), dual supply capable | Supports bidirectional sensing and negative rail applications; not limited to high-side-only use | Select when sensing across negative rails or requiring reverse-current detection; avoid if ultra-low IQ is mandatory. |
| MAX40056ATA+T | 200 V/V gain, 2.7–60 V common-mode, 1.1 mA IQ, integrated reference buffer | Includes buffered reference output for ratiometric ADC interfacing; higher power consumption | Choose when system requires precise reference routing or operates up to 60 V; not suitable for battery-critical low-IQ designs. |
Compared with INA183A3IDBVR, INA240A3D offers extended voltage range and bidirectional capability at the cost of 18× higher supply current, while MAX40056ATA+T adds reference buffering and higher voltage tolerance but triples quiescent power - making INA183A3IDBVR optimal for space-constrained, low-power, unidirectional high-side monitoring.
Availability
INA183A3IDBVR is available at Aetrix Electronics and suitable for server power monitoring, industrial 24-V power supplies, and battery management systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant SOT-23 packaging.
Supply support for INA183A3IDBVR 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 amplifiers and power management ICs.
The INA183 product line was designed specifically for high-accuracy, high-side current sensing in space- and power-constrained applications such as servers, telecom infrastructure, and industrial power supplies - emphasizing zero-drift stability, rail-to-rail-compatible operation, and minimal external component count.
FAQ
What is the maximum common-mode voltage supported by the INA183A3IDBVR?
The INA183A3IDBVR supports a common-mode input voltage range from 2.7 V to 26 V. This allows it to operate directly on standard 12-V server rails and 24-V industrial supplies without attenuation or level-shifting. The specification is guaranteed over the full –40°C to +125°C temperature range and applies to both IN+ and IN– pins simultaneously.
Does the INA183A3IDBVR require an external power supply?
No, the INA183A3IDBVR does not require an external power supply. It draws all operating current - up to 130 μA - from the IN+ pin, which serves as both the high-side input and the power source. This eliminates the need for a separate VCC rail and simplifies design in high-side sensing configurations where only the supply voltage is accessible.
What is the output voltage swing capability of the INA183A3IDBVR?
The INA183A3IDBVR output swings from within 5 mV above GND to within 50 mV below the IN+ voltage, under a 10-kΩ load. For example, with IN+ = 12 V, the output ranges from ~0.005 V to ~11.95 V. This rail-aware swing ensures compatibility with most 12-bit and 16-bit ADCs and avoids clipping during normal operation with typical shunt voltages.
Can the INA183A3IDBVR be used for bidirectional current sensing?
No, the INA183A3IDBVR is designed exclusively for unidirectional, high-side current sensing. Its architecture and pin configuration do not support bidirectional operation or low-side sensing. For bidirectional applications, consider alternatives like the INA240 series. Attempting to force reverse current flow may result in invalid output or saturation.
What is the bandwidth and slew rate of the INA183A3IDBVR?
The INA183A3IDBVR has a small-signal bandwidth of 14 kHz (with 10-pF load) and a slew rate of 0.4 V/μs. These specifications support accurate monitoring of DC and low-frequency AC currents - including step transients in power supply fault conditions - while rejecting high-frequency noise that could corrupt measurement integrity.
INA183A3IDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.4V/µs
- Gain Bandwidth Product:
- 14 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 30 µA
- Voltage - Input Offset:
- 25 µV
- Current - Supply:
- 83µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 26 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
INA183A3IDBVR FAQ
1.How can I place an order for INA183A3IDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for INA183A3IDBVR 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 INA183A3IDBVR reliable?
The price and inventory of INA183A3IDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA183A3IDBVR is usually 5 days.
3.What payment methods are accepted for INA183A3IDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA183A3IDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA183A3IDBVR?
INA183A3IDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA183A3IDBVR 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 INA183A3IDBVR?
For technical support, including INA183A3IDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA183A3IDBVR requirements.
6.How does Aetrix verify that INA183A3IDBVR is sourced from the original manufacturer or authorized distributors?
All INA183A3IDBVR 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 INA183A3IDBVR meets industry standards.
7.What is the process for return or replacement of INA183A3IDBVR?
All INA183A3IDBVR units undergo pre-shipment inspection (PSI). If there is an issue with INA183A3IDBVR, 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 INA183A3IDBVR part is unused and in its original packaging.
Return procedure for INA183A3IDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
INA183A3IDBVR Tags
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