Overview
Features and Benefits
- Input-to-output response:
<100 ns - High input common-mode voltage range
Operating: 5 V to 65 V
Survival: 0 V to 68 V - Current output
- Hysteresis: 10 mV
- Integrated 2.4 V regulator
- Wide operating temperature range:
-40°C to +125°C - 8-lead MSOP package
- Qualified for automotive applications
Product Details
The AD8214 is a fast response, high common-mode voltage, current shunt comparator. The device operates on the high side rail of any DC current sensing application, provided the voltage is between 5 V and 65 V. Internally, the AD8214 features a fast comparator that is optimized for high side operation. An internal Zener regulator powers the circuit with respect to the high side DC rail. In addition, user access to this 2.4V regulator, allows for setting a comparator threshold voltage via external resistors. The AD8214 will compare the voltage across the shunt resistor to this user-selected threshold, and the AD8214 output will change states from low to high, indicating the current across the shunt has crossed the threshold level.
The input to output response time of the AD8214 is typically less than 100 ns. This makes the device optimal for overcurrent protection in applications such as motor and solenoid control. Built-in comparator hysteresis means that once the current across the shunt falls back to a normal limit, the AD8214 output will change states to its original level.
The AD8214 is available in an 8-lead MSOP package. The operating temperature range is −40°C to +125°C, and the device is fully qualified for automotive applications.
Applications
Overcurrent protection
- Motor controls
- Transmission controls
- Diesel injection controls
- DC-to-DC converters
- Power supplies
- Batteries
Product Categories
Markets and Technologies
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
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Auto-Zero Amplifiers3/1/2010
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High-performance Adder Uses Instrumentation Amplifiers9/3/2009
Tools & Simulations
SPICE Model
CIR
AD8214 SPICE Macro Model
2.24 K
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD8214ARMZ | Material Declaration | Reliability Data | 8-Lead MSOP | |
| AD8214ARMZ-R7 | Material Declaration | Reliability Data | 8-Lead MSOP | |
| AD8214ARMZ-RL | Material Declaration | Reliability Data | 8-Lead MSOP | |
| AD8214WYRMZ | Material Declaration | Reliability Data | 8-Lead MSOP | |
| AD8214WYRMZ-R7 | Material Declaration | Reliability Data | 8-Lead MSOP | |
| AD8214WYRMZ-RL | Material Declaration | Reliability Data | 8-Lead MSOP | |
| Wafer Fabrication Data |
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Sample & Buy
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