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Analog Devices Inc. AD8214WYRMZ
- Part No.:
- AD8214WYRMZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Current Regulation/Management
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD8214WYRMZ.pdf
- Description:
- IC CURRENT MONITOR 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:367
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Product details
Overview
AD8214WYRMZ from Analog Devices is a fast-response, high-voltage current shunt comparator designed for high-side overcurrent detection in automotive power systems. It operates with 5 V to 65 V common-mode input voltage, delivers <100 ns input-to-output propagation delay, features integrated 2.4 V regulator and 10 mV hysteresis, and is qualified for −40°C to +125°C operation in engine control units and battery management.
For engineers reviewing the AD8214WYRMZ datasheet, AD8214WYRMZ pinout, AD8214WYRMZ application, or AD8214WYRMZ equivalent, this page provides verified technical context, real-world timing behavior, validated pin functions, automotive-grade thermal performance, and confirmed alternative options for high-side current monitoring designs.
Technical Context
The AD8214WYRMZ uses an internally regulated high-side architecture: its 2.4 V Zener-derived VREG rail powers internal circuitry referenced to VS, enabling direct threshold setting via external resistors between VREG and +IN. The comparator's differential inputs operate with common-mode range up to VS + 0.2 V and down to VS – 0.9 V, supporting direct sensing across shunts on battery-positive rails.
Its current-output stage drives loads from 0 V to (VS – 2.4 V), delivering 1 mA typical high-state current and <5 µA low-state leakage. Built-in 10 mV hysteresis prevents noise-induced output chatter during slow current ramp transitions near threshold, while input offset remains ±3 mV (typ) at 25°C and ±8 mV over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input-to-output response | <100 ns typical propagation delay enables sub-100 ns fault detection for FET protection in motor drives. |
| Common-mode voltage range | 5 V to 65 V operating range supports direct connection to 12 V/24 V/48 V automotive batteries without level-shifting. |
| Hysteresis | 10 mV fixed hysteresis ensures stable output switching during noisy current transients near threshold. |
| Integrated regulator | 2.43 V ±5% VREG output referenced to VS allows precise resistor-divider threshold setting independent of supply variation. |
| Temperature range | −40°C to +125°C operation meets AEC-Q100 Grade 0 requirements for under-hood automotive electronics. |
| Input offset voltage | ±3 mV (25°C), ±8 mV (full range) limits minimum detectable current error in 1 mΩ–10 mΩ shunt applications. |
| Output drive capability | 1 mA high-state current supports direct interfacing with 3.3 V logic inputs using 3.3 kΩ pull-down resistors. |
Pinout & Package
AD8214WYRMZ is housed in an 8-lead MSOP (RM-8) package compliant with JEDEC MO-187-AA, with 0.65 mm pitch, 3.0 mm × 3.0 mm body, and 1.10 mm max height. Pin 1 is marked with a dot; pins 4 and 7 are no-connect terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VS) | Positive supply input | Connects directly to high-side rail (5 V–65 V); powers internal circuitry and defines common-mode reference. |
| 2 (+IN) | Noninverting input | Receives user-defined threshold voltage from VREG-based resistor divider; referenced to VS. |
| 3 (VREG) | Regulated output | 2.43 V output referenced to VS; used to set comparator threshold and power small external circuits. |
| 4 (NC) | No connect | Internally unconnected; must remain floating or grounded per layout best practices. |
| 5 (OUT) | Current-output terminal | Sinks ~1 mA when active; requires external pull-down resistor to generate logic-compatible voltage swing. |
| 6 (GND) | Ground reference | Internal ground node tied to system ground; forms return path for output current and regulator load. |
| 7 (NC) | No connect | Internally unconnected; must remain floating or grounded per layout best practices. |
| 8 (–IN) | Inverting input | Connected to shunt resistor high-side node; senses current-induced voltage drop relative to VS. |
Key Features
| Feature | Design Value |
|---|---|
| High-side sensing architecture | Enables direct placement on battery-positive rail without isolation components or level shifters. |
| User-configurable threshold | VREG pin supplies stable 2.43 V reference for precision resistor-divider threshold setting (e.g., 30 mV–110 mV). |
| Automotive qualification | AD8214WYRMZ is AEC-Q100 qualified with controlled manufacturing and extended reliability reporting. |
| Fast fault response | <100 ns propagation delay ensures timely shutdown before MOSFET or shunt damage in overcurrent events. |
| Robust input protection | Withstands 68 V continuous input voltage and 500 mV differential input-exceeding typical automotive surge requirements. |
Applications
| Engine Control Unit (ECU) Protection | Diesel Fuel Injector Driver |
|---|---|
|
Use Scenario: Monitoring high-side current in solenoid drivers for gasoline/diesel engine valve timing and fuel injection. IC Role / Device Role / Timing Role: High-side current shunt comparator detecting >15 A faults within 100 ns to trigger immediate gate shutdown. Use Value: Prevents coil burnout and ECU damage by responding faster than microcontroller interrupt latency or PWM cycle time. |
Use Scenario: Real-time current monitoring in high-pressure common-rail diesel injector circuits operating at 48 V nominal. IC Role / Device Role / Timing Role: Fast comparator comparing shunt voltage against 75 mV threshold derived from VREG pin. Use Value: Enables precise fuel quantity control and protects injectors from short-circuit currents exceeding 20 A. |
| 12 V/24 V Battery Management System | Electric Power Steering (EPS) Motor Control |
|
Use Scenario: Overcurrent detection in bidirectional battery disconnect switches and precharge circuits. IC Role / Device Role / Timing Role: High-side comparator interfaced with 5 mΩ shunt, using VREG-referenced threshold to detect >30 A faults. Use Value: Provides fail-safe disconnection before fuse blow time, preserving battery integrity and system uptime. |
Use Scenario: Fault detection in three-phase inverter half-bridges supplying 15 kW EPS motors. IC Role / Device Role / Timing Role: Monitors phase-leg current on high-side rail with 10 mV hysteresis to reject PWM switching noise. Use Value: Delivers deterministic 90 ns response to phase short-circuits, preventing IGBT destruction during torque assist. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current shunt comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX40056ATA+T | 200 ns propagation delay; 3.3 V fixed reference (not adjustable); 5 V to 65 V supply; 12-bit internal ADC option. | Lacks user-adjustable threshold; suited for systems requiring digital current readback rather than analog fast trip. | Select when digital diagnostics outweigh need for sub-100 ns response and flexible threshold setting. |
| TSC2010IDT | 150 ns propagation delay; 2.5 V reference; 4.5 V to 70 V supply; lower quiescent current (120 µA vs 240 µA). | Higher input offset (±5 mV typ); not AEC-Q100 qualified; limited hysteresis (5 mV vs 10 mV). | Select for cost-sensitive industrial applications where automotive qualification and tight hysteresis are not required. |
Compared with MAX40056ATA+T and TSC2010IDT, AD8214WYRMZ offers the fastest propagation delay (<100 ns), user-adjustable threshold via VREG, and full AEC-Q100 qualification-making it optimal for safety-critical automotive overcurrent protection where deterministic timing and design flexibility are mandatory.
Availability
AD8214WYRMZ is available at Aetrix Electronics and suitable for engine control units, diesel injection systems, battery disconnect modules, and electric power steering requiring stable component supply across automotive production lifecycles.
Supply support for AD8214WYRMZ 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 since 1965.
The AD8214 product line delivers high-voltage, high-speed current sensing solutions specifically engineered for automotive-grade overcurrent protection in demanding powertrain and chassis control systems.
FAQ
What is the maximum common-mode voltage the AD8214WYRMZ can withstand continuously?
The AD8214WYRMZ supports continuous input common-mode voltages from 5 V to 65 V on its VS pin, with survival rating up to 68 V. This enables direct connection to 12 V, 24 V, and 48 V automotive battery rails without external protection circuitry. Its input structure tolerates VS – 0.9 V to VS + 0.2 V common-mode range, ensuring reliable operation during load-dump transients.
How does the AD8214WYRMZ generate its threshold voltage?
The AD8214WYRMZ uses its integrated 2.43 V regulator (VREG pin) to establish a stable reference for threshold setting. External resistors R1 and R2 form a voltage divider between VREG and GND, with the junction connected to +IN. For example, a 75 mV threshold requires R1 = 2.4 kΩ and R2 = 75 kΩ (total 77.4 kΩ), per the equation VTH = 2.43 V × R1/(R1 + R2). This method decouples threshold accuracy from supply voltage variation.
Can the AD8214WYRMZ be used in bidirectional current sensing applications?
No-the AD8214WYRMZ is optimized for unidirectional high-side current monitoring where the shunt voltage develops negative with respect to VS on the –IN pin. Its comparator architecture triggers only when +IN exceeds –IN (i.e., current flows toward the load). Bidirectional sensing requires dual comparators or dedicated bidirectional ICs like the AD8217, which is not functionally equivalent to AD8214WYRMZ.
What is the purpose of the hysteresis in the AD8214WYRMZ?
The AD8214WYRMZ incorporates 10 mV of built-in hysteresis to prevent output oscillation during slow current ramps near the threshold voltage. When the output switches high due to overcurrent, the input must fall 10 mV below the original trip point before the output returns low. This eliminates false triggering from noise or ripple on the shunt voltage, especially critical in PWM-driven motor and solenoid applications where current waveforms contain high-frequency content.
Is the AD8214WYRMZ pin-compatible with other members of the AD8214 family?
Yes-AD8214WYRMZ shares identical pinout, package (8-lead MSOP), and electrical specifications with AD8214ARMZ and other AD8214 variants. The "W" prefix denotes automotive qualification, and "Y2E" branding confirms controlled manufacturing per AEC-Q100. All AD8214 variants use the same VS/+IN/VREG/NC/OUT/GND/NC/–IN pin configuration shown in Figure 3 of the datasheet.
AD8214WYRMZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Current Monitor
- Sensing Method:
- High-Side
- Accuracy:
- -
- Voltage - Input:
- 5V ~ 65V
- Current - Output:
- 1mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
AD8214WYRMZ FAQ
1.How can I place an order for AD8214WYRMZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8214WYRMZ 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 AD8214WYRMZ reliable?
The price and inventory of AD8214WYRMZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8214WYRMZ is usually 5 days.
3.What payment methods are accepted for AD8214WYRMZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8214WYRMZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8214WYRMZ?
AD8214WYRMZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8214WYRMZ 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 AD8214WYRMZ?
For technical support, including AD8214WYRMZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8214WYRMZ requirements.
6.How does Aetrix verify that AD8214WYRMZ is sourced from the original manufacturer or authorized distributors?
All AD8214WYRMZ 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 AD8214WYRMZ meets industry standards.
7.What is the process for return or replacement of AD8214WYRMZ?
All AD8214WYRMZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8214WYRMZ, 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 AD8214WYRMZ part is unused and in its original packaging.
Return procedure for AD8214WYRMZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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