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Analog Devices Inc. AD8211WYRJZ-RL
- Part No.:
- AD8211WYRJZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Current Regulation/Management
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AD8211WYRJZ-RL.pdf
- Description:
- IC CURRENT MONITOR 0.25% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,902
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Product details
Overview
AD8211WYRJZ-RL from Analog Devices is a high-voltage, unidirectional current shunt monitor IC with fixed 20 V/V gain, ±2.5 mV input offset over temperature, and −2 V to +65 V common-mode input range. It delivers buffered ground-referenced output voltage for direct ADC interfacing in automotive high-side current sensing applications such as engine management and transmission controls.
For engineers reviewing the AD8211WYRJZ-RL datasheet, AD8211WYRJZ-RL pinout, AD8211WYRJZ-RL application, or AD8211WYRJZ-RL equivalent, key selection criteria include guaranteed automotive qualification (AEC-Q100), ±4000 V HBM ESD rating, 120 dB dc CMRR, and operation across −40°C to +125°C without external gain-setting components.
Technical Context
The AD8211WYRJZ-RL employs proprietary input-stage circuitry to maintain linearity across 0 mV–250 mV differential input voltage regardless of common-mode voltage (−2 V to +65 V). Its internal precision-trimmed resistors deliver ±0.35% gain error over temperature and −13 ppm/°C gain drift.
It operates from a single 4.5 V–5.5 V supply, draws ≤2.0 mA quiescent current at VCM > 5 V, and features rail-to-rail output swing (0.05 V to 4.9 V) with 2 Ω output impedance. Input bias current remains stable across differential input and common-mode ranges, enabling accurate low-current measurements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | 20 V/V fixed - eliminates external resistor network, reduces BOM count and layout sensitivity |
| Common-Mode Input Range | −2 V to +65 V - supports high-side sensing in 12 V/24 V/42 V automotive battery systems |
| Input Offset Voltage (RTI) | ±2.5 mV max over −40°C to +125°C - enables accurate measurement of sub-100 mA currents with 100 mΩ shunt |
| CMRR (dc) | 120 dB typical - rejects noise from switching regulators and motor commutation in engine control units |
| Small-Signal Bandwidth | 500 kHz - captures fast transient currents in solenoid actuation and PWM-driven loads |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with standard 5 V automotive microcontroller domains |
| ESD Rating (HBM) | ±4000 V - meets stringent automotive board-level ESD immunity requirements |
Pinout & Package
AD8211WYRJZ-RL is housed in a RoHS-compliant 5-lead SOT-23 package (JEDEC MO-178-AA, package option RJ-5), measuring 2.90 mm × 1.60 mm × 1.30 mm with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Buffered output | Ground-referenced analog voltage proportional to shunt current; drives ADC inputs directly without level-shifting |
| 2 - GND | Analog ground reference | Return path for output stage and internal biasing; must be connected to system analog ground plane |
| 3 - VIN+ | Noninverting input | Connects to high-side of shunt resistor; high common-mode rejection preserves signal integrity |
| 4 - VIN− | Inverting input | Connects to low-side of shunt resistor; differential input accepts up to ±500 mV absolute max |
| 5 - V+ | Positive supply | Accepts 4.5 V–5.5 V; powers internal amplifier and output buffer; decoupling capacitor required |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 0 qualified - certified for under-hood engine control, transmission, and suspension modules |
| Output linearity assurance | Maintains accuracy down to 2 mV differential input across full −2 V to +65 V common-mode range - enables use with low-value shunts for minimal power loss |
| Thermal stability | 5 µV/°C typical offset drift and −13 ppm/°C gain drift - ensures consistent calibration over vehicle thermal cycles |
| Robust input protection | Continuous input voltage range −3 V to +68 V - withstands load-dump transients and reverse-battery conditions |
| Low-power operation | ≤2.0 mA supply current at VCM > 5 V - suitable for always-on vehicle subsystems with strict quiescent current budgets |
Applications
| Engine Management System | Transmission Control Module |
|---|---|
|
Use Scenario: Monitoring fuel injector coil current during pulse-width modulation in gasoline direct injection engines. IC Role / Device Role / Timing Role: High-side current shunt monitor providing real-time analog feedback to MCU for closed-loop injector timing and diagnostics. Use Value: Enables detection of open-circuit, short-circuit, and partial-turn faults within <100 µs via precise 20× amplified output aligned to ADC reference. |
Use Scenario: Measuring clutch solenoid current in dual-clutch automatic transmissions during gear shifts. IC Role / Device Role / Timing Role: Unidirectional current sensor placed on high-side of solenoid driver, rejecting battery ripple and PWM noise. Use Value: Delivers 500 kHz bandwidth response to capture rapid solenoid engagement dynamics while maintaining ±0.35% gain accuracy across −40°C to +125°C. |
| Electric Power Steering (EPS) | Onboard Charger (OBC) DC-DC Stage |
|
Use Scenario: Sensing motor phase current in brushless EPS assist motors during torque-vectoring maneuvers. IC Role / Device Role / Timing Role: High-common-mode current monitor interfaced to motor control MCU's SAR ADC for field-oriented control. Use Value: 120 dB dc CMRR suppresses EMI from nearby inverters; ±2.5 mV offset enables <50 mA resolution with 500 µΩ shunt. |
Use Scenario: Monitoring primary-side current in isolated DC-DC converters used in 800 V OBC pre-regulators. IC Role / Device Role / Timing Role: High-side current sense amplifier referenced to 48 V intermediate bus, feeding isolated sigma-delta ADC. Use Value: −2 V to +65 V common-mode range accommodates wide input voltage swings; buffered output avoids loading effects on isolation barrier. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage current shunt monitor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX40056ATA+T | 20 V/V gain, −0.2 V to +65 V common-mode, 1.5 µV/°C offset drift, 4.5 V–5.5 V supply | Not AEC-Q100 qualified; rated for industrial −40°C to +125°C only | Select when automotive qualification is not required and lower offset drift is prioritized over HBM ESD robustness |
| INA240A1QDRQ1 | 20 V/V gain, −5 V to +80 V common-mode, ±10 µV/°C offset drift, 2.7 V–5.5 V supply | AEC-Q100 Grade 1 (−40°C to +125°C), but higher offset drift and lower CMRR (100 dB dc) | Select when extended common-mode range (>65 V) is needed and ±0.35% gain error tolerance allows relaxed drift performance |
Compared with MAX40056ATA+T and INA240A1QDRQ1, the AD8211WYRJZ-RL uniquely combines AEC-Q100 Grade 0 qualification, ±4000 V HBM ESD rating, and guaranteed 120 dB dc CMRR - making it the preferred choice for safety-critical engine and transmission control nodes where long-term parametric stability under thermal stress is mandatory.
Availability
AD8211WYRJZ-RL is available at Aetrix Electronics and suitable for engine management systems, transmission control modules, electric power steering units, and onboard charger DC-DC stages requiring stable component supply across automotive production lifecycles.
Supply support for AD8211WYRJZ-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 Norwood, MA, with design and manufacturing operations worldwide.
The AD8211 product line delivers precision current sensing ICs optimized for high-common-mode, high-reliability automotive and industrial power monitoring - designed specifically to replace discrete op-amp solutions in safety-critical current feedback loops.
FAQ
What is the operating temperature range specified for the AD8211WYRJZ-RL?
The AD8211WYRJZ-RL is rated for operation from −40°C to +125°C, meeting AEC-Q100 Grade 0 requirements for under-hood automotive applications. This range is fully supported by all electrical specifications in the datasheet, including gain error, offset voltage, and CMRR, with no derating required across the full span.
Does the AD8211WYRJZ-RL require external gain-setting resistors?
No, the AD8211WYRJZ-RL integrates precision-trimmed internal resistors to provide a fixed gain of 20 V/V. This eliminates external components, reduces PCB area, improves temperature stability (−13 ppm/°C gain drift), and ensures consistent performance without manual calibration or resistor matching tolerances.
Can the AD8211WYRJZ-RL be used for low-side current sensing?
Yes, the AD8211WYRJZ-RL supports low-side current sensing configurations. Its input stage maintains linearity and high CMRR (>90 dB dc) even when VIN− is near ground, enabling accurate measurement while rejecting ground noise - though its primary design advantage lies in high-side sensing up to +65 V common-mode.
What is the maximum continuous input voltage rating for the AD8211WYRJZ-RL?
The AD8211WYRJZ-RL supports a continuous input voltage range of −3 V to +68 V on both VIN+ and VIN− pins. This exceeds the −2 V to +65 V common-mode specification and provides margin against automotive load-dump transients and reverse-battery events without external clamping.
How does the AD8211WYRJZ-RL handle differential overload conditions?
The AD8211WYRJZ-RL recovers from ±500 mV differential overload in less than 1 µs (rising and falling), as verified in Figures 15–16 of the datasheet. This fast recovery prevents measurement corruption during short-circuit events in solenoid or motor windings, supporting robust fault detection in real-time control loops.
AD8211WYRJZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Monitor
- Sensing Method:
- High/Low-Side
- Accuracy:
- ±0.25%
- Voltage - Input:
- -2V ~ 65V
- Current - Output:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
AD8211WYRJZ-RL FAQ
1.How can I place an order for AD8211WYRJZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8211WYRJZ-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 AD8211WYRJZ-RL reliable?
The price and inventory of AD8211WYRJZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8211WYRJZ-RL is usually 5 days.
3.What payment methods are accepted for AD8211WYRJZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8211WYRJZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8211WYRJZ-RL?
AD8211WYRJZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8211WYRJZ-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 AD8211WYRJZ-RL?
For technical support, including AD8211WYRJZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8211WYRJZ-RL requirements.
6.How does Aetrix verify that AD8211WYRJZ-RL is sourced from the original manufacturer or authorized distributors?
All AD8211WYRJZ-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 AD8211WYRJZ-RL meets industry standards.
7.What is the process for return or replacement of AD8211WYRJZ-RL?
All AD8211WYRJZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with AD8211WYRJZ-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 AD8211WYRJZ-RL part is unused and in its original packaging.
Return procedure for AD8211WYRJZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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