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Analog Devices Inc. AD8417WBRMZ-10
- Part No.:
- AD8417WBRMZ-10
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD8417WBRMZ-10.pdf
- Description:
- 80V CMN MODE BIDIR CURRENT SENSE
- Quantity:
- Payment:
- Shipping:
Inventory:3,433
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Product details
Overview
AD8417WBRMZ-10 from Analog Devices is a bidirectional, zero-drift current sense amplifier with 60 V/V gain, ±400 µV max input offset over −40°C to +150°C, and −2 V to +70 V continuous common-mode input range. It delivers high-accuracy shunt-based current measurement in automotive motor control and solenoid drive circuits where PWM rejection and FMEA-tolerant operation are required.
For engineers reviewing the AD8417WBRMZ-10 datasheet, AD8417WBRMZ-10 pinout, AD8417WBRMZ-10 application, or AD8417WBRMZ-10 equivalent, key selection criteria include its AEC-Q100 qualification, 10-lead MSOP FMEA-optimized layout, 250 kHz bandwidth, EMI-filtered inputs, and ratiometric output offset adjustment capability for unidirectional/bidirectional configurations.
Technical Context
The AD8417WBRMZ-10 implements a patented zero-drift difference amplifier architecture (U.S. Patent 8,624,668 B2) enabling <0.4 µV/°C offset drift while maintaining 250 kHz small-signal bandwidth. Its input stage rejects fast PWM common-mode transients up to 1 V/ns across −2 V to +70 V, critical for H-bridge and 3-phase motor phase current sensing.
It features dual reference inputs (VREF1/VREF2) tied via internal 100 kΩ resistors to an offset node, 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 accuracy depending on connection mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 60 V/V fixed, ±0.3% error over full temperature range - enables direct interface to 12-bit+ ADCs without calibration. |
| Input Offset Voltage | ±400 µV max over −40°C to +150°C - ensures ≤6.7 mV output error at full-scale shunt voltage (111.7 mV). |
| Common-Mode Range | −2 V to +70 V continuous - supports high-side sensing in 12 V/24 V/48 V automotive systems with battery transients. |
| CMRR | 86 dB dc to 10 kHz - maintains accuracy under PWM switching noise in motor gate drivers. |
| Bandwidth | 250 kHz - captures fast current transients during motor commutation and solenoid turn-on/turn-off. |
| Supply Range | 2.7 V to 5.5 V - compatible with standard automotive 3.3 V or 5 V rails without LDO overhead. |
| Quiescent Current | 4.2 mA at +150°C - enables thermally constrained under-hood placement with minimal self-heating. |
Pinout & Package
AD8417WBRMZ-10 is housed in a 10-lead MSOP package (RM-10) with FMEA-optimized pin spacing: NC pins isolate high-voltage inputs (−IN, +IN) from adjacent GND, VREF2, VS, and VREF1 to mitigate PCB short-fault propagation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (−IN) | Negative Input | Connects to shunt resistor low-side; withstands −2 V to +70 V common-mode voltage. |
| 2 (NC) | No Connect | FMEA guard pin - electrically isolated to prevent fault coupling between −IN and GND. |
| 3 (GND) | Ground Reference | Power and signal return; referenced to shunt resistor low-side in high-side sensing. |
| 4 (VREF2) | Reference Input 2 | Adjusts output offset; tied to GND, VS, or external reference to set zero-current output level. |
| 5 (NC) | No Connect | FMEA guard pin - isolates VREF2 from OUT to avoid erroneous offset shift during shorts. |
| 6 (OUT) | Analog Output | Buffered 60× amplified shunt voltage; drives 25 kΩ load with 2 Ω output impedance. |
| 7 (VS) | Positive Supply | 2.7 V–5.5 V single supply; powers internal amplifiers and EMI filters. |
| 8 (VREF1) | Reference Input 1 | Paired with VREF2 for ratiometric offset setting; identical function and internal connection. |
| 9 (NC) | No Connect | FMEA guard pin - isolates VREF1 from +IN to preserve input common-mode integrity. |
| 10 (+IN) | Positive Input | Connects to shunt resistor high-side; same voltage rating as −IN for bidirectional sensing. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 0 qualification | Rated for −40°C to +150°C operation - validated for engine bay and transmission control unit deployment. |
| FMEA-optimized 10-lead MSOP layout | NC pins between critical inputs and power/ground - prevents single-point PCB faults from causing catastrophic output saturation. |
| Patented PWM rejection circuitry | Eliminates errors from 1 V/ns common-mode edges - enables accurate current sampling during MOSFET switching transitions. |
| Ratiometric output offset adjustment | VREF1/VREF2 allow VS/2 mid-scale bias without external components - simplifies bidirectional current measurement in H-bridge designs. |
| Integrated EMI filters | On-chip RC networks suppress RF interference from nearby power electronics - reduces need for external filtering in compact layouts. |
Applications
| Motor Control | Solenoid Control |
|---|---|
Use Scenario: Real-time phase current monitoring in 3-phase BLDC motor inverters with space-constrained PCB layouts. IC Role / Device Role / Timing Role: High-side current sense amplifier measuring shunt voltage with 250 kHz bandwidth and PWM common-mode rejection. Use Value: Enables precise field-oriented control (FOC) by delivering low-drift, high-bandwidth current feedback unaffected by gate driver switching noise. | Use Scenario: Diagnostic current monitoring of 12 V/24 V automotive solenoids in transmission valve bodies and fuel injectors. IC Role / Device Role / Timing Role: Bidirectional shunt amplifier detecting both activation current and recirculation current during de-energization. Use Value: Supports open-circuit, short-to-ground, and stuck-on diagnostics using a single device with configurable output offset. |
| H-Bridge Motor Control | High-Rail Current Sensing |
Use Scenario: Bidirectional current measurement in automotive window lift or seat actuator H-bridges with shared shunt resistor. IC Role / Device Role / Timing Role: Zero-drift amplifier placed across center-tap shunt to measure forward/reverse motor current with ±400 µV offset stability. Use Value: Eliminates need for dual amplifiers or complex calibration - provides symmetric ±50 A range with single 60 V/V gain path. | Use Scenario: Battery-side current monitoring in 48 V mild-hybrid starter-generator systems with fast overcurrent shutdown. IC Role / Device Role / Timing Role: High-common-mode amplifier generating ground-referenced analog output while interfacing with AD8214 fast comparator. Use Value: Delivers linear analog feedback for closed-loop control and triggers <100 ns hardware shutdown via companion IC for system-level fault protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8418ARZ | Same zero-drift architecture but 20 V/V gain, 8-lead SOIC_N, −40°C to +125°C rating. | Limited to lower-gain applications requiring less output swing; not qualified for +150°C environments. | Select when gain scaling allows higher shunt voltage or thermal budget excludes +150°C operation. |
| INA240A1QDRQ1 | 20 V/V gain, 80 V common-mode, 120 kHz bandwidth, ±5 µV/°C drift, AEC-Q100 Grade 1. | Lower bandwidth and higher drift limit dynamic accuracy in fast-switching motor phases. | Select when cost sensitivity outweighs need for 250 kHz response and sub-0.4 µV/°C drift in harsh thermal zones. |
Compared with AD8417WBRMZ-10, AD8418ARZ offers lower gain and reduced temperature range but shares core zero-drift performance, while INA240A1QDRQ1 trades bandwidth and drift for broader common-mode range and automotive cost optimization - making AD8417WBRMZ-10 optimal for high-dynamic, high-temperature motor/solenoid control where precision timing and thermal stability are non-negotiable.
Availability
AD8417WBRMZ-10 is available at Aetrix Electronics and suitable for automotive motor control, solenoid diagnostic systems, and high-rail battery monitoring requiring stable component supply across extended temperature and long production lifecycles.
Supply support for AD8417WBRMZ-10 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 industrial, automotive, communications, and healthcare markets.
The AD8417WBRMZ-10 belongs to Analog Devices' precision current sense amplifier product line, engineered specifically for AEC-Q100-compliant automotive subsystems demanding robustness against PWM noise, wide common-mode range, and failure-mode resilience in safety-critical current measurement.
FAQ
What is the operating temperature range specified for the AD8417WBRMZ-10?
The AD8417WBRMZ-10 is rated for −40°C to +150°C operation, matching the AD8417WH grade. This extended range is validated per AEC-Q100 Grade 0 requirements and enables placement in high-thermal-stress locations such as engine compartments and transmission control units. The specification applies to all electrical parameters in the datasheet unless otherwise noted.
Does the AD8417WBRMZ-10 support bidirectional current sensing, and how is it configured?
Yes, the AD8417WBRMZ-10 supports true bidirectional current sensing. It is configured by applying complementary voltages to VREF1 and VREF2 - typically tying one to VS and the other to GND to establish a VS/2 mid-scale output offset. This allows the output to swing symmetrically above and below mid-scale in response to positive and negative differential input voltages across the shunt resistor.
What makes the 10-lead MSOP package of the AD8417WBRMZ-10 FMEA-tolerant?
The AD8417WBRMZ-10 uses a purpose-engineered 10-lead MSOP layout with NC pins inserted between −IN/GND and +IN/VREF1. This physical isolation prevents adjacent-pin shorts (e.g., −IN-to-GND or +IN-to-VREF1) from causing unrecoverable output saturation or loss of functionality - a key requirement for ISO 26262 ASIL-B/C system designs where PCB defects must not lead to hazardous behavior.
How does the AD8417WBRMZ-10 reject PWM-induced errors in motor control applications?
The AD8417WBRMZ-10 incorporates patented circuitry (U.S. Patent 8,624,668 B2) that actively cancels fast common-mode transients up to 1 V/ns. Combined with 86 dB CMRR from dc to 10 kHz and integrated EMI filters, this enables accurate current measurement even when the shunt is placed directly across high-side switches experiencing rapid voltage slew rates - eliminating the need for external RC snubbers or complex layout mitigation.
Can the AD8417WBRMZ-10 be used with a 3.3 V supply, and what is its output voltage range under that condition?
Yes, the AD8417WBRMZ-10 operates from 2.7 V to 5.5 V, fully supporting 3.3 V supplies. With VS = 3.3 V, the output voltage range is specified as 0.045 V to VS − 0.035 V (i.e., 0.045 V to 3.265 V) into a 25 kΩ load. This rail-to-rail capable output ensures compatibility with 3.3 V SAR or sigma-delta ADCs without level-shifting circuitry.
AD8417WBRMZ-10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm 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:
- -
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
AD8417WBRMZ-10 FAQ
1.How can I place an order for AD8417WBRMZ-10 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8417WBRMZ-10 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 AD8417WBRMZ-10 reliable?
The price and inventory of AD8417WBRMZ-10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8417WBRMZ-10 is usually 5 days.
3.What payment methods are accepted for AD8417WBRMZ-10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8417WBRMZ-10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8417WBRMZ-10?
AD8417WBRMZ-10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8417WBRMZ-10 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 AD8417WBRMZ-10?
For technical support, including AD8417WBRMZ-10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8417WBRMZ-10 requirements.
6.How does Aetrix verify that AD8417WBRMZ-10 is sourced from the original manufacturer or authorized distributors?
All AD8417WBRMZ-10 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 AD8417WBRMZ-10 meets industry standards.
7.What is the process for return or replacement of AD8417WBRMZ-10?
All AD8417WBRMZ-10 units undergo pre-shipment inspection (PSI). If there is an issue with AD8417WBRMZ-10, 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 AD8417WBRMZ-10 part is unused and in its original packaging.
Return procedure for AD8417WBRMZ-10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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