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Analog Devices Inc. AD8417WBRZ
- Part No.:
- AD8417WBRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8417WBRZ.pdf
- Description:
- IC CURRENT SENSE 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,619
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Product details
Overview
AD8417WBRZ from Analog Devices is a bidirectional, zero-drift current sense amplifier optimized for high-side and low-side shunt-based current measurement in automotive motor and solenoid control. It delivers 60 V/V gain, ±400 µV max input offset over −40°C to +125°C, −2 V to +70 V continuous common-mode input range, and AEC-Q100 qualification for under-hood applications.
For engineers reviewing the AD8417WBRZ datasheet, AD8417WBRZ pinout, AD8417WBRZ application, or AD8417WBRZ equivalent, key selection criteria include bidirectional PWM-tolerant operation, FMEA-optimized 10-lead MSOP packaging, EMI-filtered inputs, and ratiometric output offset adjustment capability for unidirectional/bidirectional configurations.
Technical Context
The AD8417WBRZ employs a patented zero-drift architecture (U.S. Patent 8,624,668 B2) enabling 0.1 µV/°C typical offset drift while maintaining 250 kHz bandwidth and 86 dB CMRR from dc to 10 kHz. Its input stage rejects fast-rising PWM common-mode transients up to 1 V/ns without degradation.
It features dual reference inputs (VREF1/VREF2) tied internally to 100 kΩ resistors, supporting ground-referenced, supply-referenced, external-referenced, or split-supply (VS/2) output offset configuration - all with 0.5 V/V or 1 V/V ratiometric gain depending on connection topology.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 60 V/V fixed - enables direct interface to 12-bit+ ADCs with 50 mV shunt drop yielding 3 V full-scale output. |
| Input Offset (max) | ±400 µV over −40°C to +125°C - ensures ≤0.67% error at 60 mV differential input across full temp range. |
| CM Input Range | −2 V to +70 V continuous - supports high-side sensing in 12 V/24 V/48 V automotive systems with battery transients. |
| Supply Range | 2.7 V to 5.5 V - compatible with standard 3.3 V or 5 V microcontroller domains without level-shifting. |
| Bandwidth | 250 kHz - captures fast current transients in BLDC motor commutation and solenoid turn-on/turn-off events. |
| CMRR | 86 dB (dc–10 kHz) - maintains accuracy during PWM switching with >100 V/µs common-mode slew rates. |
| Quiescent Current | 4.1 mA - enables always-on diagnostic monitoring in low-power vehicle subsystems. |
Pinout & Package
AD8417WBRZ is supplied in a 10-lead MSOP package (RM-10), designed for failure mode and effects analysis (FMEA) compliance. The package includes strategically placed NC pins between critical nodes (−IN/GND and +IN/VREF1) to mitigate PCB short-circuit faults.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (−IN) | Negative Input | Connects to shunt resistor low-side; accepts −2 V to +70 V common-mode voltage. |
| 2 (NC) | No Connect | FMEA isolation barrier - must remain unconnected to prevent fault propagation. |
| 3 (GND) | Analog Ground | Reference for internal circuitry; separate from power ground in noisy environments. |
| 4 (VREF2) | Reference Input 2 | Configures output offset via internal 100 kΩ resistor; used with VREF1 for ratiometric biasing. |
| 5 (NC) | No Connect | FMEA isolation barrier - must remain unconnected to prevent fault propagation. |
| 6 (OUT) | Analog Output | Buffered voltage output (0.045 V to VS − 0.035 V); drives 25 kΩ loads directly. |
| 7 (VS) | Positive Supply | 2.7 V to 5.5 V single supply; powers internal amplifiers and reference network. |
| 8 (VREF1) | Reference Input 1 | Paired with VREF2 to set output DC bias; identical electrical function to VREF2. |
| 9 (NC) | No Connect | FMEA isolation barrier - must remain unconnected to prevent fault propagation. |
| 10 (+IN) | Positive Input | Connects to shunt resistor high-side; completes differential measurement path. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional current sensing | Supports both sourcing and sinking current measurement using configurable VREF1/VREF2 biasing. |
| AEC-Q100 qualified | Rated for −40°C to +125°C operation with full parametric validation per automotive stress test requirements. |
| EMI filtering | Integrated input filters suppress RF interference from adjacent power electronics without external components. |
| PWM common-mode rejection | Patented architecture rejects fast-rising common-mode edges (up to 1 V/ns) without signal distortion or recovery delay. |
| FMEA-optimized pinout | 10-lead MSOP layout inserts NC pins between high-risk adjacent terminals to contain single-point PCB shorts. |
Applications
| Motor Control | Solenoid Control |
|---|---|
Use Scenario: Real-time phase current monitoring in 3-phase BLDC motor drives with PWM gate signals. IC Role / Device Role / Timing Role: High-side current sense amplifier measuring shunt voltage with 250 kHz bandwidth and <0.1 µV/°C drift. Use Value: Enables precise field-oriented control (FOC) and overcurrent protection with minimal temperature-induced gain/offset error. | Use Scenario: Diagnostic current monitoring in automotive fuel injector or transmission solenoid circuits. IC Role / Device Role / Timing Role: Bidirectional high-side current sensor detecting open-circuit, short-to-ground, and recirculation current. Use Value: Provides fail-safe diagnostics during solenoid activation/deactivation without requiring ground-referenced measurement. |
| Power Management | Diagnostic Protection |
Use Scenario: Battery current monitoring in 12 V/48 V mild-hybrid vehicle power distribution units. IC Role / Device Role / Timing Role: High-common-mode current amplifier interfacing to MCU ADC with ratiometric VREF biasing. Use Value: Delivers stable measurement accuracy across wide supply voltage variation (2.7–5.5 V) and load transients. | Use Scenario: Fault detection in high-reliability industrial actuators where PCB trace shorts must not cause system failure. IC Role / Device Role / Timing Role: FMEA-engineered current sense amplifier with NC-isolated pinout for fault containment. Use Value: Ensures continued safe operation during adjacent-pin solder bridges or trace shorts per ISO 26262 ASIL-B requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8418WBRZ | 20 V/V gain, lower offset drift (0.025 µV/°C), same 10-lead FMEA MSOP package. | Better suited for ultra-high-precision applications requiring sub-100 µV offset stability; less sensitive to shunt voltage noise. | Select AD8418WBRZ when higher gain accuracy and lower drift outweigh need for 60 V/V scaling. |
| MAX40056AUB+ | 60 V/V gain, −4 V to +76 V CM range, 3.3 V/5 V supply, but no FMEA pinout or AEC-Q100 grade. | Valid for industrial motor control where automotive qualification is not required; lacks NC isolation for fault tolerance. | Choose MAX40056AUB+ only for cost-sensitive non-automotive designs needing extended CM range. |
Compared with AD8417WBRZ, AD8418WBRZ offers superior offset stability at reduced gain, while MAX40056AUB+ extends common-mode range but omits automotive qualification and FMEA design - making AD8417WBRZ the optimal choice for AEC-Q100-compliant, fault-tolerant automotive current sensing.
Availability
AD8417WBRZ is available at Aetrix Electronics and suitable for automotive motor control, solenoid actuation, and battery management systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant performance.
Supply support for AD8417WBRZ 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets.
The AD8417WBRZ belongs to Analog Devices' precision current sense amplifier product line, engineered specifically for robust, high-accuracy current measurement in harsh automotive environments with PWM-rich electrical noise.
FAQ
What is the operating temperature range of the AD8417WBRZ?
The AD8417WBRZ is rated for −40°C to +125°C operation, meeting AEC-Q100 Grade 1 requirements. This range covers under-hood automotive environments including engine compartments and transmission control units where thermal cycling and ambient extremes are present. The device maintains full specification compliance-including ±400 µV max offset and 60 V/V gain accuracy-across this entire range.
Does the AD8417WBRZ support bidirectional current measurement?
Yes, the AD8417WBRZ supports true bidirectional current measurement via its dual reference inputs (VREF1 and VREF2). By applying appropriate bias voltages-such as splitting VS across VREF1 and VREF2-the output centers at VS/2, allowing symmetric positive and negative differential inputs to produce corresponding output swings. This enables accurate measurement of both sourcing and sinking currents through the same shunt resistor.
What package type is used for the AD8417WBRZ?
The AD8417WBRZ uses a 10-lead MSOP (RM-10) package, specifically engineered for failure mode and effects analysis (FMEA). It incorporates NC pins between −IN/GND and +IN/VREF1 to isolate high-voltage input nodes from adjacent terminals, mitigating risks from PCB-level short circuits-a requirement for ASIL-B compliant automotive systems.
How does the AD8417WBRZ handle PWM common-mode interference?
The AD8417WBRZ integrates patented circuitry (U.S. Patent 8,624,668 B2) that actively cancels fast-rising common-mode transients, enabling reliable operation with PWM inputs changing at rates up to 1 V/ns. Its 86 dB CMRR holds from dc to 10 kHz, and built-in EMI filters suppress RF coupling-eliminating need for external RC networks in motor drive and solenoid control applications.
Is the AD8417WBRZ pin-compatible with other members of the AD8417 family?
No, the AD8417WBRZ (10-lead MSOP) is not pin-compatible with the 8-lead SOIC_N or 8-lead MSOP variants (e.g., AD8417WBZ). Its 10-lead FMEA-optimized layout introduces two additional NC pins for fault isolation. Migration requires PCB layout revision; however, functional behavior, gain, and reference interface remain consistent across all AD8417 variants, simplifying firmware and schematic reuse.
AD8417WBRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 250 kHz
- Current - Input Bias:
- 130 µA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 4.1mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8417WBRZ FAQ
1.How can I place an order for AD8417WBRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8417WBRZ 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 AD8417WBRZ reliable?
The price and inventory of AD8417WBRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8417WBRZ is usually 5 days.
3.What payment methods are accepted for AD8417WBRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8417WBRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8417WBRZ?
AD8417WBRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8417WBRZ 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 AD8417WBRZ?
For technical support, including AD8417WBRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8417WBRZ requirements.
6.How does Aetrix verify that AD8417WBRZ is sourced from the original manufacturer or authorized distributors?
All AD8417WBRZ 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 AD8417WBRZ meets industry standards.
7.What is the process for return or replacement of AD8417WBRZ?
All AD8417WBRZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8417WBRZ, 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 AD8417WBRZ part is unused and in its original packaging.
Return procedure for AD8417WBRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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