Overview
The ADM810LARTZ-REEL is a supervisory circuit produced by Analog Devices Inc., designed to monitor the power supply voltage in microprocessor systems. This component ensures that the microprocessor operates within stable voltage conditions, preventing malfunctions during power-up, power-down, and brownout conditions. The ADM810 provides an active high reset signal, which remains asserted until the power supply voltage exceeds the specified threshold, ensuring the microprocessor is in a reset state until stable conditions are achieved.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Reset Threshold Voltage | 2.28 V to 2.35 V (typical at 25°C) | See Table 3 in datasheet |
| VCC Range | −0.3 V to +6 V | |
| Reset Output Type | Active High, Push-Pull | |
| Reset Output Voltage High | 0.8 VCC (VCC > VTH max, ISOURCE = 150 μA) | |
| Reset Output Voltage Low | 0.3 V (VCC = VTH min, ISINK = 1.2 mA) | |
| Reset Active Timeout Period | 240 ms (typical at 25°C) | |
| Thermal Impedance (θJA) | See datasheet for specific values | |
| Package Type | SOT-23-3 |
Key Features
- Accurate Reset Threshold: The ADM810 features a precise internal voltage reference circuit, ensuring reliable operation even with large degradations in supply voltages.
- Glitch Immunity: Built-in glitch immunity makes the reset comparator immune to fast transients on VCC.
- Push-Pull Output: Provides an active high reset signal with push-pull output configuration.
- Low Power Operation: The reset output remains operational with VCC as low as 1 V.
- Multiple Reset Threshold Options: Seven reset threshold voltage options are available, suitable for monitoring various supply voltages.
Applications
- Microprocessor Systems: Ideal for monitoring power supply voltages in microprocessor-based systems to ensure stable operation.
- Embedded Systems: Used in embedded systems where reliable power monitoring is crucial.
- Industrial Control Systems: Suitable for industrial control systems that require robust power supply monitoring.
- Aerospace and Automotive Systems: Can be used in aerospace and automotive applications where reliable power supply monitoring is essential.
Q & A
- What is the primary function of the ADM810LARTZ-REEL? The primary function is to monitor the power supply voltage in microprocessor systems and provide a reset signal during power-up, power-down, and brownout conditions.
- What type of reset output does the ADM810 provide? The ADM810 provides an active high reset signal with a push-pull output configuration.
- What is the typical reset threshold voltage for the ADM810? The typical reset threshold voltage ranges from 2.28 V to 2.35 V at 25°C.
- How long does the reset output remain asserted after power-up? The reset output remains asserted for a typical period of 240 ms after power-up.
- What is the minimum VCC required for the reset output to be operational? The reset output remains operational with VCC as low as 1 V.
- Does the ADM810 have built-in glitch immunity? Yes, the ADM810 features built-in glitch immunity to protect against fast transients on VCC.
- What package type is the ADM810LARTZ-REEL available in? The ADM810LARTZ-REEL is available in a SOT-23-3 package.
- What are the absolute maximum ratings for VCC and reset output? VCC range is −0.3 V to +6 V, and the reset output range is −0.3 V to VCC + 0.5 V.
- Can the ADM810 be used in industrial control systems? Yes, the ADM810 is suitable for use in industrial control systems where reliable power supply monitoring is crucial.
- Where can I purchase the ADM810LARTZ-REEL? The ADM810LARTZ-REEL can be purchased from various distributors, including those listed on Digi-Key, Mouser, and other electronic component suppliers.
