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Analog Devices Inc. AD8411AWBRZ-RL
- Part No.:
- AD8411AWBRZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8411AWBRZ-RL.pdf
- Description:
- HIGH BW CURR SENSE FOR 48V/12V D
- Quantity:
- Payment:
- Shipping:
Inventory:3,985
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Product details
Overview
AD8411AWBRZ-RL from Analog Devices is a high-voltage, bidirectional current-sense amplifier with 50 V/V fixed gain, −2 V to +70 V continuous common-mode input range, 2.7 MHz small-signal bandwidth, and ±200 µV max input offset over temperature. It delivers precision sensing in BLDC motor control, 48 V–12 V DC-DC converters, and solenoid drivers where PWM rejection and low drift are critical.
For engineers reviewing the AD8411AWBRZ-RL datasheet, AD8411AWBRZ-RL pinout, AD8411AWBRZ-RL application, or AD8411AWBRZ-RL equivalent, this page provides verified specifications, package mapping to 8-lead SOIC_N, real-world use cases, and two confirmed alternative parts for automotive-grade high-side current monitoring.
Technical Context
The AD8411AWBRZ-RL employs a DigiTrim™ in-package trim core architecture that achieves ±0.26 µV/°C typical offset drift without chopping or auto-zero circuitry-eliminating intermodulation artifacts in PWM-rich environments. Its deglitch circuitry holds output for ~1 µs during fast common-mode transients (e.g., 1 V/ns), preserving accuracy during switching events in motor gate drives.
It features balanced input bias currents across −20 V to +85 V survival range, ratiometric VREF₁/VREF₂ pins enabling output offset adjustment, and 123 dB minimum DC CMRR from −2 V to +70 V. The device operates from 2.9 V to 5.5 V supply and supports bidirectional shunt current measurement with buffered rail-to-rail capable output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 50 V/V fixed-enables direct scaling of mV-level shunt voltage to measurable output without external gain stages. |
| Bandwidth | 2.7 MHz (−3 dB)-supports accurate current capture in fast-switching 100 kHz+ PWM systems like BLDC inverters. |
| Input Offset | ±200 µV max over −40°C to +125°C-ensures ≤4 mV error at full-scale 50 mV shunt drop, critical for <1% current measurement accuracy. |
| CMRR | 123 dB min DC, 96 dB at 50 kHz-rejects noise from high-dV/dt power rails while maintaining signal integrity in noisy industrial environments. |
| Common-Mode Range | −2 V to +70 V continuous-allows direct high-side sensing on 48 V battery rails or industrial 60 V buses without level-shifting. |
| Supply Voltage | 2.9 V to 5.5 V-compatible with standard 3.3 V or 5 V logic domains and isolated DC-DC bias supplies. |
| Offset Drift | ±0.26 µV/°C typical-minimizes thermal-induced error drift in under-hood automotive or enclosed power electronics. |
Pinout & Package
AD8411AWBRZ-RL is packaged in an 8-lead SOIC_N (R-8) with exposed pad for thermal performance. Pin 4 is NC (internally connected to die; may float or tie to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (−IN) | Negative Input | High-impedance Kelvin sense node for shunt resistor low-side connection; matched bias current minimizes CM error. |
| 2 (GND) | Ground Reference | Power and signal reference plane; must be low-impedance path to minimize ground bounce in high-current paths. |
| 3 (VREF₂) | Reference Input 2 | Part of ratiometric divider network (with VREF₁) to set output zero point; enables bidirectional operation. |
| 4 (NC) | No Connect | Internally tied to die substrate; floating or grounded per layout requirements-no signal routing required. |
| 5 (OUT) | Buffered Output | Low-impedance (0.2 Ω) voltage output driving ADC inputs or comparator thresholds directly; 5 mV to VS−16 mV swing. |
| 6 (VS) | Supply Voltage | 2.9 V–5.5 V analog supply; decoupling capacitor mandatory near pin to suppress switching noise coupling. |
| 7 (VREF₁) | Reference Input 1 | Paired with VREF₂ to form adjustable offset network; 60 kΩ internal resistors enable simple resistor-divider configuration. |
| 8 (+IN) | Positive Input | High-impedance Kelvin sense node for shunt resistor high-side connection; symmetric layout with −IN ensures CMRR. |
Key Features
| Feature | Design Value |
|---|---|
| PWM Rejection Architecture | Deglitch circuit holds output for ~1 µs during fast common-mode steps (e.g., 0 V → 60 V), limiting transient-induced output disturbance to <10 mV. |
| In-Package Trim Core (DigiTrim™) | Eliminates need for external trimming or chopper clocks-reduces EMI susceptibility and preserves 2.7 MHz bandwidth. |
| Bidirectional Current Sensing | VREF₁/VREF₂ pins allow output centering at mid-supply, enabling positive/negative current detection across single shunt resistor. |
| AEC-Q100 Qualified | Rated for automotive applications per Grade 1 (−40°C to +125°C), including stress testing for temperature cycling, HTOL, and ESD robustness. |
| Wide Survival Voltage Range | Withstands −20 V to +85 V common-mode input continuously-protects against load-dump transients and reverse-battery conditions. |
Applications
| BLDC Motor Control | Solenoid Driver Monitoring |
|---|---|
Use Scenario: Real-time phase current measurement in 3-phase inverter legs driving brushless DC motors in EV traction inverters or HVAC compressors. IC Role / Device Role / Timing Role: High-side current-sense amplifier placed between MOSFET bridge and battery rail, rejecting 600 V/µs switching noise while delivering 2.7 MHz bandwidth signals to MCU ADC. Use Value: Enables precise field-oriented control (FOC) with <1% current error across −40°C to +125°C, reducing torque ripple and improving efficiency. | Use Scenario: Closed-loop current regulation in automotive fuel injectors or transmission shift solenoids powered from 12 V or 48 V systems. IC Role / Device Role / Timing Role: Bidirectional shunt monitor measuring both energize and de-energize current waveforms, interfacing directly with microcontroller PWM timers. Use Value: Supports diagnostic compliance (e.g., ISO 16750-2) by detecting open/short circuits and verifying solenoid coil integrity within 10 µs response window. |
| 48 V–12 V Bidirectional DC-DC Converter | Datacenter PSU Current Monitoring |
Use Scenario: Bidirectional current sensing on high-side of buck-boost converter in 48 V server rack power distribution units (PDUs). IC Role / Device Role / Timing Role: Measures forward (48 V → 12 V) and reverse (12 V → 48 V) power flow using single shunt; rejects 100 kHz PWM common-mode noise. Use Value: Enables accurate power balancing and fault detection (e.g., overcurrent, reverse polarity) with ±200 µV offset stability across thermal cycles. | Use Scenario: Input/output rail current monitoring in modular datacenter power supply units (PSUs) and battery backup units (BBUs) operating at 54 V nominal. IC Role / Device Role / Timing Role: High-side sensing on primary and secondary sides of LLC resonant converters, feeding telemetry to PMBus controllers. Use Value: Delivers <0.15% gain error over temperature-critical for predictive maintenance algorithms tracking aging trends in multi-kW PSUs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage current-sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA240A1QDRQ1 | 500 V/V gain option only; 4 V/V, 20 V/V, 50 V/V variants exist but A1 version is 50 V/V; 0.5 µV/°C max drift; 85 V common-mode survival. | Automotive AEC-Q100 Grade 0 (−40°C to +150°C); requires external RC filter for PWM rejection vs. AD8411AWBRZ-RL's integrated deglitch. | Select when higher common-mode survival (85 V) is prioritized over guaranteed 2.7 MHz bandwidth and lower drift. |
| MAX40056ATA+T | 100 V/V gain only; 2.5 MHz bandwidth; ±150 µV max offset; 65 V common-mode range; no integrated deglitch circuit. | Industrial grade (−40°C to +125°C); optimized for cost-sensitive industrial motor drives-not AEC-Q100 qualified. | Select for non-automotive applications requiring lower cost and acceptable trade-off in PWM rejection and temperature drift. |
Compared with INA240A1QDRQ1 and MAX40056ATA+T, AD8411AWBRZ-RL uniquely combines AEC-Q100 qualification, 2.7 MHz bandwidth, ±0.26 µV/°C drift, and on-chip deglitching-making it optimal for safety-critical automotive and high-fidelity industrial current sensing where transient immunity and long-term stability are non-negotiable.
Availability
AD8411AWBRZ-RL is available at Aetrix Electronics and suitable for BLDC motor control, 48 V–12 V bidirectional DC-DC converters, and solenoid driver monitoring requiring stable component supply across automotive production ramps and industrial OEM programs.
Supply support for AD8411AWBRZ-RL 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.
The AD8411A product line is engineered for precision high-voltage current sensing in automotive and industrial power systems-designed specifically to replace discrete op-amp solutions with integrated PWM rejection, low drift, and AEC-Q100 reliability.
FAQ
What is the operating temperature range for AD8411AWBRZ-RL?
The AD8411AWBRZ-RL is rated for −40°C to +125°C operation, matching the AD8411AWB variant specification. This range is validated per AEC-Q100 Grade 1 requirements and covers under-hood automotive and industrial embedded environments where thermal stability is essential. The device maintains ±200 µV max input offset and 0.15% gain error across this full span.
Does AD8411AWBRZ-RL support bidirectional current sensing?
Yes, AD8411AWBRZ-RL supports true bidirectional current sensing via its dual reference inputs (VREF₁ and VREF₂). When configured with a mid-supply reference (e.g., 2.5 V on both pins), the output centers at 2.5 V for zero differential input, allowing positive and negative shunt voltage polarities to produce corresponding above- and below-midrail outputs-ideal for regenerative braking or bidirectional DC-DC converters.
What package type is used for AD8411AWBRZ-RL?
AD8411AWBRZ-RL uses the 8-lead SOIC_N (R-8) package with industry-standard footprint and pinout. This package features an exposed pad for enhanced thermal dissipation and is RoHS-compliant. Pin 4 is NC (internally connected to die substrate) and may be left floating or tied to GND depending on PCB layout best practices.
How does AD8411AWBRZ-RL reject PWM noise?
AD8411AWBRZ-RL incorporates dedicated deglitch circuitry that detects fast common-mode transients (e.g., >1 V/ns) and holds the output at its last valid value for approximately 1 µs. This prevents output disturbance during switching edges in motor drives or DC-DC converters, enabling clean current waveform capture even with aggressive PWM edge rates-without requiring external filtering that would degrade bandwidth.
Is AD8411AWBRZ-RL AEC-Q100 qualified?
Yes, AD8411AWBRZ-RL is AEC-Q100 qualified per Grade 1 (−40°C to +125°C) for automotive applications. Qualification includes stress testing for temperature cycling, high-temperature operating life (HTOL), electrostatic discharge (HBM ±4000 V), and latch-up immunity-ensuring reliability in safety-critical systems such as electric power steering and battery management.
AD8411AWBRZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- Single-Ended
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 2.7 MHz
- Current - Input Bias:
- 178 µA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 7.8mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.9 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8411AWBRZ-RL FAQ
1.How can I place an order for AD8411AWBRZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8411AWBRZ-RL 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 AD8411AWBRZ-RL reliable?
The price and inventory of AD8411AWBRZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8411AWBRZ-RL is usually 5 days.
3.What payment methods are accepted for AD8411AWBRZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8411AWBRZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8411AWBRZ-RL?
AD8411AWBRZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8411AWBRZ-RL 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 AD8411AWBRZ-RL?
For technical support, including AD8411AWBRZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8411AWBRZ-RL requirements.
6.How does Aetrix verify that AD8411AWBRZ-RL is sourced from the original manufacturer or authorized distributors?
All AD8411AWBRZ-RL 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 AD8411AWBRZ-RL meets industry standards.
7.What is the process for return or replacement of AD8411AWBRZ-RL?
All AD8411AWBRZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with AD8411AWBRZ-RL, 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 AD8411AWBRZ-RL part is unused and in its original packaging.
Return procedure for AD8411AWBRZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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