ADM812
Microprocessors Supervisory Circuit in 4-Lead SOT-143, Logic High RESET Output
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Overview
Features and Benefits
- Superior upgrade for MAX811/MAX812
- Specified over temperature
- Low power consumption: 5 μA typical
- Precision voltage monitor: 2.5 V, 3 V, 3.3 V, 5 V options
- Reset assertion down to 1 VCC
- Power-on reset: 140 ms minimum
- Logic high RESET output
- Built-in manual reset
Product Details
The ADM811/ADM812 are reliable voltage monitoring devices suitable for use in most voltage monitoring applications. The ADM811/ADM812 are designed to monitor six different voltages, each allowing a 5% or 10% degradation of standard PSU voltages before a reset occurs. These voltages have been selected for the effective monitoring of 2.5 V, 3 V, 3.3 V, and 5 V supply voltage levels.
Included in this circuit is a debounced manual reset input. Reset can be activated using an electrical switch (or an input from another digital device) or by a degradation of the supply voltage. The manual reset function is very useful, especially if the circuit in which the ADM811/ADM812 are operating enters into a state that can only be detected by the user. Allowing the user to reset a system manually can reduce the damage or danger that could otherwise be caused by an out-of-control or locked system.
Applications
- Microprocessor systems
- Controllers
- Intelligent instruments
- Automotive systems
- Safety systems
- Portable instruments
Product Categories
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
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 |
|---|---|---|---|---|
| ADM812LARTZ-REEL7 | Material Declaration | Reliability Data | 4-Lead SOT-143 | |
| ADM812RARTZ-REEL7 | Material Declaration | Reliability Data | 4-Lead SOT-143 | |
| ADM812SARTZ-REEL | Material Declaration | Reliability Data | 4-Lead SOT-143 | |
| ADM812SARTZ-REEL7 | Material Declaration | Reliability Data | 4-Lead SOT-143 | |
| ADM812TARTZ-REEL7 | Material Declaration | Reliability Data | 4-Lead SOT-143 | |
| Wafer Fabrication Data |
Sample & Buy
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Lead Times
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Sampling
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