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Analog Devices Inc. AD8214WYRMZ-R7
- Part No.:
- AD8214WYRMZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Current Regulation/Management
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD8214WYRMZ-R7.pdf
- Description:
- IC CURRENT MONITOR 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,760
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Product details
Overview
AD8214WYRMZ-R7 from Analog Devices is a fast-response, high-voltage current shunt comparator designed for high-side overcurrent detection in automotive power systems. It operates from 5 V to 65 V supply, delivers <100 ns input-to-output propagation delay, features 10 mV hysteresis and an integrated 2.4 V regulator, and is qualified for −40°C to +125°C operation in diesel injection controls and motor protection circuits.
For engineers reviewing the AD8214WYRMZ-R7 datasheet, AD8214WYRMZ-R7 pinout, AD8214WYRMZ-R7 application, or AD8214WYRMZ-R7 equivalent, key selection criteria include high common-mode voltage tolerance (up to 65 V), sub-100 ns response for fault shutdown, current-output interface compatibility with ground-referenced logic, and automotive-grade qualification per AEC-Q100 requirements.
Technical Context
The AD8214WYRMZ-R7 implements a high-side–optimized comparator architecture powered by an internal 2.4 V series regulator referenced to VS, enabling direct operation from battery rails up to 65 V without external level-shifting. Its differential inputs accept common-mode voltages from VS − 0.9 V to VS + 0.2 V, allowing direct sensing across shunt resistors placed between VS and load.
It uses a current-output stage (1 mA typical high, 100 nA low) compatible with pull-up loads to GND, and integrates 10 mV hysteresis to suppress noise-induced false triggering during slow current transients. Input offset is ±3 mV (typ), drift is ±10 µV/°C, and dynamic error remains ≤15 mV for input ramp rates ≤100 mV/µs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 5 V to 65 V - supports direct connection to automotive battery rails including cold-crank and load-dump conditions. |
| Propagation Delay | <100 ns - enables real-time overcurrent shutdown before FET or shunt damage occurs in motor/solenoid drives. |
| Hysteresis | 10 mV - prevents output chatter near threshold during noisy or slowly varying current conditions. |
| Regulator Output | 2.43 V ±5% - provides stable reference for external resistor-divider threshold setting, independent of VS variation. |
| Input Offset | ±3 mV (25°C), ±8 mV (−40°C to +125°C) - defines minimum detectable shunt voltage delta and impacts current threshold accuracy. |
| Operating Temp | −40°C to +125°C - meets under-hood automotive temperature requirements per AEC-Q100 Grade 0. |
| Package | 8-lead MSOP (RM-8) - surface-mount footprint with 0.65 mm pitch, qualified for reflow and automotive thermal cycling. |
Pinout & Package
AD8214WYRMZ-R7 is housed in an 8-lead MSOP (RM-8) package compliant with JEDEC MO-187-AA, featuring gull-wing leads, 0.65 mm pitch, and 3.0 mm × 3.0 mm body size. The package supports automated assembly and automotive reliability testing.
| 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 regulator. |
| 2 (+IN) | Noninverting Input | Accepts user-defined threshold voltage via resistor divider from VREG; 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 be left floating or tied to VS/GND per layout guidelines. |
| 5 (OUT) | Current Output | Sinks ~100 nA (low) or sources ~1 mA (high); drives ground-referenced load resistor for logic-level signaling. |
| 6 (GND) | Ground Reference | Internal ground node; connects to system ground; required for regulator and output stage return path. |
| 7 (NC) | No Connect | Internally unconnected; must be left floating or tied to VS/GND per layout guidelines. |
| 8 (–IN) | Inverting Input | Connects to shunt resistor's load-side terminal; senses current-induced voltage drop relative to +IN. |
Key Features
| Feature | Design Value |
|---|---|
| High-Side Operation | Enables direct current sensing on battery-positive side without isolation or level-shifting components. |
| Sub-100 ns Response | Ensures fault detection and shutdown occur before destructive energy accumulates in MOSFETs or inductive loads. |
| Integrated 2.4 V Regulator | Provides stable, VS-referenced reference for precise, temperature-stable threshold setting using two external resistors. |
| Automotive Qualification | Qualified per AEC-Q100 Grade 0; manufactured under controlled processes for automotive safety-critical applications. |
| Current-Output Interface | Eliminates need for level translators; compatible with standard CMOS/TTL inputs when paired with ground-referenced load. |
Applications
| Diesel Injection Control | Motor Overcurrent Protection |
|---|---|
|
Use Scenario: Monitoring solenoid coil current in high-pressure common-rail diesel injectors to prevent coil burnout during extended activation. IC Role / Device Role / Timing Role: High-side current comparator detecting >12 A fault within 100 ns to trigger immediate driver disable. Use Value: Prevents injector coil thermal failure by enforcing strict current limits without adding isolation circuitry or latency. |
Use Scenario: Protecting BLDC motor phases in electric power steering (EPS) systems against short-circuit faults. IC Role / Device Role / Timing Role: Real-time shunt-based current monitor on each phase high-side rail, interfacing directly with MCU GPIO. Use Value: Enables <100 ns fault response to avoid IGBT latch-up and bus overcurrent, meeting ISO 26262 ASIL-B timing constraints. |
| Transmission Solenoid Control | DC-DC Converter OCP |
|
Use Scenario: Supervising clutch engagement solenoids in automatic transmissions where excessive current indicates mechanical binding. IC Role / Device Role / Timing Role: High-voltage comparator comparing shunt voltage against 80 mV threshold derived from VREG divider. Use Value: Detects abnormal solenoid resistance rise early, preventing hydraulic damage and enabling diagnostic flagging. |
Use Scenario: Providing primary overcurrent protection in 48 V–12 V bidirectional DC-DC converters for mild hybrid vehicles. IC Role / Device Role / Timing Role: Fast-response current shunt comparator on high-side input rail, driving gate driver disable signal. Use Value: Maintains converter reliability under load dump or short-circuit events while supporting wide input voltage range (5 V–65 V). |
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 | Higher supply max (65 V same), but slower propagation (250 ns typ); no integrated regulator; requires external reference. | Less suitable for ultra-fast shutdown; better for cost-sensitive non-automotive industrial OCP where speed <100 ns is not critical. | Select MAX40056ATA+T only if design tolerates longer fault response time and can provide external 2.5 V reference. |
| INA301A3IDR | Lower supply range (5.5 V–36 V); 350 ns propagation; fixed 50 mV threshold; no VREG output; smaller SOT-23-6 package. | Targeted at lower-voltage battery systems (e.g., 12 V/24 V); lacks automotive qualification and high-voltage robustness. | Choose INA301A3IDR only for non-automotive 12 V/24 V applications requiring minimal board space and fixed-threshold simplicity. |
Compared with MAX40056ATA+T and INA301A3IDR, AD8214WYRMZ-R7 uniquely combines automotive qualification, sub-100 ns response, integrated 2.4 V regulator, and 65 V supply capability-making it the only option for high-reliability, high-speed overcurrent protection in 48 V and 60 V automotive subsystems.
Availability
AD8214WYRMZ-R7 is available at Aetrix Electronics and suitable for diesel injection controls, motor overcurrent protection, transmission solenoid monitoring, and DC-DC converter OCP requiring stable component supply across automotive production lifecycles.
Supply support for AD8214WYRMZ-R7 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.
The AD8214 product line delivers precision high-side current sensing comparators optimized for automotive-grade overcurrent protection in harsh environments, with emphasis on speed, voltage range, and functional safety compliance.
FAQ
What is the maximum continuous input common-mode voltage for AD8214WYRMZ-R7?
The AD8214WYRMZ-R7 supports a continuous input common-mode voltage range from VS − 0.9 V to VS + 0.2 V, with absolute maximum rating of 68 V. This allows direct connection to battery rails up to 65 V while maintaining accurate differential sensing across the shunt resistor, even during load-dump transients.
How does the integrated 2.4 V regulator in AD8214WYRMZ-R7 enable threshold programming?
The AD8214WYRMZ-R7's VREG pin supplies a stable 2.43 V (±5%) referenced to VS, enabling precise threshold setting via an external resistor divider between VREG and GND. The +IN pin connects to the divider midpoint, so threshold = 2.43 V × R1/(R1 + R2); this eliminates dependency on supply voltage variation and improves temperature stability.
Is AD8214WYRMZ-R7 pin-compatible with AD8214ARMZ-R7?
Yes, AD8214WYRMZ-R7 and AD8214ARMZ-R7 share identical 8-lead MSOP (RM-8) pinout, electrical specifications, and functional behavior. The "W" prefix denotes automotive qualification (AEC-Q100 Grade 0), while "ARMZ" denotes commercial grade; both use the same die and package, differing only in test screening and traceability.
What load resistance is recommended for the AD8214WYRMZ-R7 output to achieve clean logic levels?
For reliable 3.3 V logic-high output with AD8214WYRMZ-R7, a 3.3 kΩ pull-up resistor to 3.3 V is recommended. This yields ~1 V drop at 1 mA output current, ensuring VOL < 0.4 V and VOH > 2.8 V. Larger values increase rise time; smaller values risk exceeding output current limits or violating VOUT < VREG constraint.
Does AD8214WYRMZ-R7 require external hysteresis components?
No, AD8214WYRMZ-R7 includes built-in 10 mV hysteresis to prevent noise-induced oscillation near the threshold. This hysteresis is fixed and temperature-stable (±2 mV over −40°C to +125°C), eliminating the need for external positive feedback networks and simplifying PCB layout in EMI-prone automotive environments.
AD8214WYRMZ-R7 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
- 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-R7 FAQ
1.How can I place an order for AD8214WYRMZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8214WYRMZ-R7 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-R7 reliable?
The price and inventory of AD8214WYRMZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8214WYRMZ-R7 is usually 5 days.
3.What payment methods are accepted for AD8214WYRMZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8214WYRMZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8214WYRMZ-R7?
AD8214WYRMZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8214WYRMZ-R7 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-R7?
For technical support, including AD8214WYRMZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8214WYRMZ-R7 requirements.
6.How does Aetrix verify that AD8214WYRMZ-R7 is sourced from the original manufacturer or authorized distributors?
All AD8214WYRMZ-R7 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-R7 meets industry standards.
7.What is the process for return or replacement of AD8214WYRMZ-R7?
All AD8214WYRMZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8214WYRMZ-R7, 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-R7 part is unused and in its original packaging.
Return procedure for AD8214WYRMZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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