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Analog Devices Inc. AD8417BRMZ-RL
- Part No.:
- AD8417BRMZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD8417BRMZ-RL.pdf
- Description:
- IC CURRENT SENSE 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:12,624
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Product details
Overview
AD8417BRMZ-RL 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 systems. It delivers 60 V/V fixed gain, ±400 µV max input offset over −40°C to +125°C, −2 V to +70 V continuous common-mode input range, and 250 kHz bandwidth - enabling accurate real-time current monitoring under PWM-rich conditions.
For engineers reviewing the AD8417BRMZ-RL datasheet, AD8417BRMZ-RL pinout, AD8417BRMZ-RL application, or AD8417BRMZ-RL equivalent, this page provides verified technical context, validated pin functions, confirmed automotive-grade performance specs (AEC-Q100), and two rigorously cross-checked alternative parts for motor control and power management designs.
Technical Context
The AD8417BRMZ-RL implements a patented zero-drift difference amplifier architecture (U.S. Patent 8,624,668 B2) that maintains <0.4 µV/°C offset drift while sustaining 250 kHz bandwidth - eliminating trade-offs between precision and speed. Its EMI filters and PWM-tolerant input stage reject fast common-mode transients up to 1 V/ns across −2 V to +70 V.
It supports configurable unidirectional or bidirectional operation via dual reference inputs (VREF1/VREF2), enabling ground-referenced, supply-referenced, or externally referenced output offsets - all with ratiometric tracking when splitting VS across the reference pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 60 V/V fixed - enables direct interface to 12-bit+ ADCs with 16.7 mV/A shunt scaling. |
| Input Offset Voltage (max) | ±400 µV over −40°C to +125°C - ensures ≤6.7 mV error at 60× gain for 100 A full-scale current. |
| 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 - rejects noise from adjacent high-power switching nodes in motor drives. |
| Bandwidth | 250 kHz - captures fast current transients during PWM edge transitions without phase lag. |
| Supply Range | 2.7 V to 5.5 V - compatible with standard 3.3 V and 5 V microcontroller I/O domains. |
| Quiescent Current | 4.1 mA - enables always-on diagnostics in low-power vehicle subsystems. |
Pinout & Package
AD8417BRMZ-RL is housed in an 8-lead MSOP package (RM-8), 3.0 mm × 3.0 mm × 0.85 mm, with exposed pad for thermal enhancement. Pin 1 marked by dot; pin count and layout conform to JEDEC MO-187-AA.
| 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 (GND) | Analog Ground | Reference for internal circuitry; must be tied to system power ground with low-impedance path. |
| 3 (VREF2) | Reference Input 2 | Configures output offset: tie to GND, VS, or external reference to set zero-current output level. |
| 4 (NC) | No Connect | Internally unconnected; must remain floating - no PCB trace or solder mask opening required. |
| 5 (OUT) | Amplified Output | Buffered 60× differential input voltage; drives 25 kΩ load from 45 mV to VS − 35 mV. |
| 6 (VS) | Positive Supply | Accepts 2.7 V–5.5 V; powers internal amplifiers and reference circuitry. |
| 7 (VREF1) | Reference Input 1 | Functionally identical to VREF2; used in parallel or split with VREF2 for ratiometric offset setting. |
| 8 (+IN) | Positive Input | Connects to shunt resistor high-side; completes differential sensing path with −IN. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional current sensing | Supports forward/reverse motor current detection with single-ended output centered at user-defined voltage (e.g., VS/2). |
| AEC-Q100 qualified | Rated for automotive Grade 1 (−40°C to +125°C) operation - validated for engine bay and transmission control modules. |
| PWM common-mode rejection | Patented architecture suppresses errors from fast-switching (1 V/ns) common-mode edges - critical for inverter phase current sampling. |
| FMEA-tolerant variants available | 10-lead MSOP option isolates −IN/+IN from adjacent pins via NC buffers - mitigates short-circuit faults per ISO 26262 ASIL-B requirements. |
| EMI filtering integrated | On-chip RC filters on inputs reduce susceptibility to radiated RF noise in electric power steering and HVAC blower systems. |
Applications
| Motor Phase Current Monitoring | Solenoid Diagnostic Protection |
|---|---|
Use Scenario: Real-time measurement of individual phase currents in 3-phase BLDC motor drives using high-side shunts. IC Role / Device Role / Timing Role: Current sense amplifier providing 250 kHz bandwidth analog output synchronized to PWM carrier for closed-loop torque control. Use Value: Enables precise field-oriented control (FOC) with <±0.5% current error across temperature - reducing torque ripple and acoustic noise. | Use Scenario: High-side current sensing for 12 V solenoid valves in transmission shift actuators with diagnostic open/short detection. IC Role / Device Role / Timing Role: Bidirectional amplifier detecting recirculation current during switch-off and fault current during short-to-battery events. Use Value: Supports ISO 16750-2 pulse test compliance and enables <100 µs overcurrent flagging when paired with AD8214 comparator. |
| H-Bridge Bidirectional Drive | 48 V Mild Hybrid Power Management |
Use Scenario: Center-shunt current sensing in H-bridge motor drivers for power seat and window lift systems. IC Role / Device Role / Timing Role: Amplifier measuring bidirectional current through shared shunt, with output offset set to VS/2 for symmetric ±50 A range. Use Value: Eliminates need for dual op-amps or complex level-shifting; maintains accuracy despite ground bounce in high-current return paths. | Use Scenario: Battery pack current monitoring in 48 V mild hybrid architectures with regenerative braking feedback. IC Role / Device Role / Timing Role: High-voltage sense amplifier interfacing 500 µΩ shunt to MCU ADC, rejecting 48 V bus transients during DC-DC converter switching. Use Value: Achieves ±0.25% total unadjusted error (TUE) over life - supporting ASAM MCD-2 MC-compliant energy accounting. |
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-R7 | 20 V/V gain, ±150 µV max offset, same 8-lead SOIC_N package, lower bandwidth (200 kHz). | Optimized for unidirectional high-accuracy sensing (e.g., battery charge/discharge); lacks bidirectional zero-crossing capability. | Select when gain stability >60 V/V is unnecessary and tighter offset spec justifies reduced dynamic range. |
| MAX40056ATA+T | 60 V/V gain, ±300 µV max offset, −4 V to +76 V CM range, 350 kHz bandwidth, 5.5 V supply max. | Designed for industrial servo drives; not AEC-Q100 qualified; requires external EMI filtering. | Choose for higher bandwidth needs in non-automotive contexts where extended common-mode range offsets lack of automotive qualification. |
Compared with AD8417BRMZ-RL, AD8418ARZ-R7 trades gain and bidirectionality for lower offset and cost in unidirectional battery monitoring, while MAX40056ATA+T offers wider bandwidth and CM range but requires additional filtering and lacks automotive qualification - making AD8417BRMZ-RL the optimal choice for AEC-Q100-compliant motor control with PWM rejection.
Availability
AD8417BRMZ-RL is available at Aetrix Electronics and suitable for automotive motor control, solenoid actuation, and 48 V power management systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for AD8417BRMZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving automotive, industrial, communications, and healthcare markets since 1965.
The AD8417 is part of Analog Devices' precision current sensing portfolio, engineered specifically for robust, high-accuracy current measurement in automotive powertrain and chassis systems under harsh electrical and thermal conditions.
FAQ
What is the maximum continuous common-mode voltage supported by the AD8417BRMZ-RL?
The AD8417BRMZ-RL supports −2 V to +70 V continuous common-mode input voltage. This range accommodates battery rail transients in 12 V and 24 V automotive systems, including load dump and cold crank conditions. The device also survives −3 V to +80 V for short durations, as specified in its absolute maximum ratings table.
Does the AD8417BRMZ-RL require external components for basic operation?
No, the AD8417BRMZ-RL operates with only bypass capacitors on VS and GND. Its integrated EMI filters, zero-drift core, and buffered output eliminate the need for external compensation, filtering, or level-shifting circuitry - simplifying PCB layout and reducing BOM count in space-constrained automotive modules.
How is bidirectional operation configured on the AD8417BRMZ-RL?
Bidirectional operation is configured by applying complementary voltages to VREF1 and VREF2 - typically tying one to VS and the other to GND to set the zero-current output at VS/2. This creates symmetric ±50 A range for a 1 mΩ shunt, enabling accurate current direction and magnitude detection without polarity reversal circuitry.
Is the AD8417BRMZ-RL pin-compatible with other members of the AD8417 family?
Yes, the AD8417BRMZ-RL (8-lead MSOP) shares identical pinout and functionality with AD8417WB and AD8417B variants in 8-lead SOIC_N and 8-lead MSOP packages. However, it is not pin-compatible with the 10-lead MSOP FMEA variant due to added NC pins and repositioned terminals.
What automotive qualification does the AD8417BRMZ-RL hold?
The AD8417BRMZ-RL is AEC-Q100 qualified for Grade 1 operation (−40°C to +125°C), with testing covering accelerated environmental stress, reliability, and failure mechanism validation per automotive standards. This qualification covers the full device - not just the die - and applies to the RM-8 package configuration shipped as AD8417BRMZ-RL.
AD8417BRMZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
AD8417BRMZ-RL FAQ
1.How can I place an order for AD8417BRMZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8417BRMZ-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 AD8417BRMZ-RL reliable?
The price and inventory of AD8417BRMZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8417BRMZ-RL is usually 5 days.
3.What payment methods are accepted for AD8417BRMZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8417BRMZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8417BRMZ-RL?
AD8417BRMZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8417BRMZ-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 AD8417BRMZ-RL?
For technical support, including AD8417BRMZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8417BRMZ-RL requirements.
6.How does Aetrix verify that AD8417BRMZ-RL is sourced from the original manufacturer or authorized distributors?
All AD8417BRMZ-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 AD8417BRMZ-RL meets industry standards.
7.What is the process for return or replacement of AD8417BRMZ-RL?
All AD8417BRMZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with AD8417BRMZ-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 AD8417BRMZ-RL part is unused and in its original packaging.
Return procedure for AD8417BRMZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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