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Texas Instruments INA4290A4IRGVT
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- Part No.:
- INA4290A4IRGVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
INA4290A4IRGVT.pdf
- Description:
- IC CURR SENSE 4 CIRCUIT 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:150
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Product details
Overview
INA4290A4IRGVT from Texas Instruments is a quad-channel, ultra-precise, high-side current-sense amplifier with 200 V/V fixed gain, 1.1-MHz bandwidth, ±12 µV max offset voltage, and 160-dB DC CMRR-designed for precision 48-V rack server power monitoring and fast overcurrent protection in multichannel telecom power supplies.
For engineers reviewing the INA4290A4IRGVT datasheet, INA4290A4IRGVT pinout, INA4290A4IRGVT application, or INA4290A4IRGVT equivalent, this page delivers verified specifications, QFN-16 package layout, channel-isolated sensing capability, thermal performance data, and real-world selection guidance for high-voltage, multi-rail current measurement systems.
Technical Context
The INA4290A4IRGVT employs a transconductance architecture with current-feedback amplifiers to achieve low input bias current (20 µA typical) while sustaining operation across 2.7 V to 120 V common-mode range. Its zero-drift topology ensures stable offset drift (±0.2 µV/°C) and gain error drift (±5 ppm/°C) over −40°C to +125°C.
All four channels operate independently with matched gain accuracy (±0.15% max), 85-dB AC CMRR at 50 kHz, and 2 V/µs slew rate-enabling simultaneous high-speed current monitoring across multiple 48-V rails without crosstalk (channel separation >140 dB at 100 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 200 V/V - sets output = 200 × shunt voltage; enables 5-mV full-scale sensing with 1-V output swing |
| Offset Voltage | ±12 µV max - supports accurate sub-ampere current measurement with 100-mΩ shunt at room temperature |
| Bandwidth | 850 kHz - sufficient for detecting <1.2-µs overcurrent events in 48-V server VRMs |
| CMRR | 160 dB DC / 85 dB @ 50 kHz - rejects bus ripple and switching noise in noisy telecom power stages |
| Supply Range | 2.7 V to 20 V - compatible with single 3.3-V or 5-V logic supply while measuring up to 120-V bus |
| Quiescent Current | 1.25–1.6 mA per device (4 channels) - enables always-on monitoring in energy-sensitive base station designs |
| Operating Temp | −40°C to +125°C - qualified for industrial and telecom equipment deployed in uncontrolled environments |
Pinout & Package
INA4290A4IRGVT is housed in a thermally enhanced 4 mm × 4 mm, 16-pin QFN package (RGV) with exposed thermal pad-optimized for high-power-density PCB layouts in telecom and server applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+1, IN+2, IN+3, IN+4 | Positive input (x4) | Connect to high-side (bus-voltage) terminal of respective shunt resistor; referenced to VCM |
| IN−1, IN−2, IN−3, IN−4 | Negative input (x4) | Connect to low-side (load) terminal of respective shunt resistor; defines differential sense node |
| OUT1–OUT4 | Analog output (x4) | Amplified, buffered current-sense voltage; rail-to-rail capable with 10-kΩ load |
| VS (pins 14, 15) | Power supply | Single 2.7–20-V supply powering all four channels; dual pins reduce IR drop and improve PSRR |
| GND (pins 6, 7) | Ground reference | Low-impedance return path; dual pins minimize ground bounce between channels |
| Thermal Pad | Thermal interface | Exposed copper pad beneath die-must be soldered to PCB copper pour for RθJA = 45.9°C/W |
Key Features
| Feature | Design Value |
|---|---|
| Quad-channel isolation | Channel separation >140 dB at 100 kHz enables simultaneous monitoring of four independent 48-V rails without signal coupling |
| Zero-drift architecture | ±0.2 µV/°C offset drift ensures stable calibration over full temperature range-no periodic recalibration needed |
| High-speed overcurrent response | 850-kHz bandwidth + 2 V/µs slew rate allows detection of transient faults within 1.2 µs at 90% of full scale |
| Low-input-bias-current sensing | 20 µA typical input bias enables use with high-value shunts (>1 Ω) in low-current standby monitoring paths |
| Wide common-mode tolerance | Survives −20 V to +122 V fault conditions-meets IEC 61000-4-5 surge immunity requirements for telecom interfaces |
Applications
| 48-V Rack Server Power Monitoring | Macro Remote Radio Unit (RRU) |
|---|---|
Use Scenario: Real-time current measurement across CPU, GPU, memory, and PCIe rail supplies in 19-inch telecom servers. IC Role / Device Role / Timing Role: Quad-channel high-side current-sense amplifier providing isolated analog outputs for ADC digitization and PMBus-based telemetry. Use Value: Enables per-rail power budgeting, dynamic thermal throttling, and predictive failure analysis using <±0.15% gain error and <±12 µV offset. |
Use Scenario: Simultaneous monitoring of PA bias, RF front-end, cooling fan, and control logic currents in outdoor macro base stations. IC Role / Device Role / Timing Role: Fault-tolerant current sensor delivering four independent analog outputs synchronized to system clock for FPGA-based protection logic. Use Value: Supports fast overcurrent shutdown (<2 µs response) and long-term drift stability required for field-deployed RRUs operating at −40°C to +70°C ambient. |
| Active Antenna System (AAS) | 48-V Merchant Network Switch PSU |
Use Scenario: Per-element current feedback in mMIMO antenna arrays with 32–64 RF transceivers and integrated beamforming ICs. IC Role / Device Role / Timing Role: High-precision, multi-channel current monitor interfacing directly to FPGA I/O banks for closed-loop PA bias control. Use Value: Delivers channel-to-channel matching <0.02% gain error-critical for coherent beamforming and EVM compliance in 5G NR deployments. |
Use Scenario: Input/output current supervision in modular 48-V intermediate bus converters feeding ASICs and PHYs in enterprise switches. IC Role / Device Role / Timing Role: Quad-channel analog front-end for digital power controllers performing real-time load-line compensation and phase shedding. Use Value: Provides 850-kHz bandwidth and 160-dB CMRR to reject PWM noise from synchronous buck stages-ensuring clean current telemetry under full load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision, quad-channel current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA4290A3IRGVT | 100 V/V gain (vs. 200 V/V); same offset (±12 µV), bandwidth (900 kHz), and package | Better suited for higher VSENSE ranges (>10 mV); lower output swing per mA sensed | Select when sensing 10–50 mV shunt drops where 200× gain causes output saturation |
| INA4290A5IRGVT | 500 V/V gain (vs. 200 V/V); same offset (±12 µV); bandwidth reduced to 800 kHz | Optimized for ultra-low VSENSE (<4 mV); higher noise sensitivity due to gain-bandwidth trade-off | Select only for sub-4-mV sensing with priority on resolution over speed-requires tighter layout control |
Compared with INA4290A3IRGVT and INA4290A5IRGVT, the INA4290A4IRGVT strikes the optimal balance for 48-V systems: its 200 V/V gain delivers 1-V full-scale output from a 5-mV shunt drop while retaining 850-kHz bandwidth and minimal noise amplification-making it the default choice for telecom and server power telemetry where both speed and resolution matter.
Availability
INA4290A4IRGVT is available at Aetrix Electronics and suitable for 48-V rack server power monitoring, macro remote radio unit (RRU) current supervision, and active antenna system (AAS) beamforming element feedback requiring stable component supply and long-term production continuity.
Supply support for INA4290A4IRGVT 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 INA4290 series was designed specifically for high-accuracy, multichannel current sensing in next-generation 48-V infrastructure-addressing the need for simultaneous, isolated, high-bandwidth monitoring in telecom, data center, and industrial power systems.
FAQ
What is the maximum common-mode voltage the INA4290A4IRGVT can withstand during normal operation?
The INA4290A4IRGVT operates across a common-mode input range of 2.7 V to 120 V under recommended conditions. Its survival rating extends to −20 V to +122 V, enabling robustness against transient overvoltage events in 48-V telecom systems. This specification is validated per TI's SBOS961C datasheet Section 6.1.
Does the INA4290A4IRGVT support bidirectional current sensing?
No-the INA4290A4IRGVT is a high-side-only current-sense amplifier with inputs referenced to VCM. It measures current flowing from supply to load but cannot resolve direction reversal. For bidirectional sensing, TI recommends the INA240 or INA229 family, which feature symmetric input structures and dedicated reference pins.
How many independent current-sense channels does the INA4290A4IRGVT provide?
The INA4290A4IRGVT integrates four fully independent current-sense amplifier channels in a single 4 mm × 4 mm QFN package. Each channel has dedicated IN+, IN−, and OUT pins, with >140 dB channel separation at 100 kHz-confirmed in Figure 6-44 of the SBOS961C datasheet.
What is the thermal resistance (RθJA) of the INA4290A4IRGVT in its QFN package?
The INA4290A4IRGVT in the RGV (16-pin QFN) package has a junction-to-ambient thermal resistance (RθJA) of 45.9°C/W when mounted on a standard 2-layer JEDEC test board with 1-in² 2-oz copper pad connected to the thermal pad-per Section 6.4 of the SBOS961C datasheet.
Can the INA4290A4IRGVT be powered from a 3.3-V supply while measuring a 48-V bus?
Yes-the INA4290A4IRGVT supports supply voltages from 2.7 V to 20 V, independent of its 2.7–120 V common-mode input range. A 3.3-V supply is fully valid and commonly used in systems where logic-level compatibility and low quiescent power are priorities, as confirmed in Section 6.3 of SBOS961C.
INA4290A4IRGVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-VQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 1.1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 µA
- Voltage - Input Offset:
- 6 µV
- Current - Supply:
- 1.25mA (x4 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 20 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-VQFN (4x4)
INA4290A4IRGVT FAQ
1.How can I place an order for INA4290A4IRGVT through Aetrix?
Please submit a Request for Quotation (RFQ) for INA4290A4IRGVT 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 INA4290A4IRGVT reliable?
The price and inventory of INA4290A4IRGVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for INA4290A4IRGVT is usually 5 days.
3.What payment methods are accepted for INA4290A4IRGVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for INA4290A4IRGVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for INA4290A4IRGVT?
INA4290A4IRGVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your INA4290A4IRGVT 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 INA4290A4IRGVT?
For technical support, including INA4290A4IRGVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your INA4290A4IRGVT requirements.
6.How does Aetrix verify that INA4290A4IRGVT is sourced from the original manufacturer or authorized distributors?
All INA4290A4IRGVT 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 INA4290A4IRGVT meets industry standards.
7.What is the process for return or replacement of INA4290A4IRGVT?
All INA4290A4IRGVT units undergo pre-shipment inspection (PSI). If there is an issue with INA4290A4IRGVT, 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 INA4290A4IRGVT part is unused and in its original packaging.
Return procedure for INA4290A4IRGVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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