Overview
The ADM809RARTZ-REEL7 is a microprocessor supervisory circuit produced by Analog Devices Inc. This component is designed to monitor the power supply voltage in microprocessor systems, ensuring stable operation during power-up, power-down, and brownout conditions. It features an internal timer that holds the reset asserted for 240 ms, allowing the microprocessor to stabilize before operation. The ADM809 provides an active-low reset signal with a push-pull output stage, making it suitable for a wide range of applications, particularly in low-power, portable equipment.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 3-lead SOT-23, 3-lead SC70 |
| Reset Output | Active-low, push-pull |
| Reset Threshold Options | Seven options available |
| Current Consumption | 17 μA |
| Reset Assert Time | 240 ms |
| Minimum VCC for Reset Operation | 1 V |
| Glitch Immunity | Built-in |
| Operating Temperature Range | −40°C to +125°C |
Key Features
- Monitors power supply voltage in microprocessor systems.
- Provides reset output during power-up, power-down, and brownout conditions.
- Internal timer holds reset asserted for 240 ms to ensure microprocessor stability.
- Active-low reset signal with push-pull output stage.
- Seven reset threshold voltage options available.
- Low power consumption of 17 μA, suitable for portable equipment.
- Built-in glitch immunity to protect against fast transients on VCC.
Applications
The ADM809RARTZ-REEL7 is ideal for use in various microprocessor-based systems that require reliable power monitoring and reset functionality. These include:
- Portable electronic devices.
- Embedded systems.
- Industrial control systems.
- Automotive electronics.
- Medical devices.
Q & A
- What is the primary function of the ADM809RARTZ-REEL7?
The primary function is to monitor the power supply voltage in microprocessor systems and provide a reset output during power-up, power-down, and brownout conditions. - What types of packages are available for the ADM809RARTZ-REEL7?
The component is available in 3-lead SOT-23 and 3-lead SC70 packages. - How long does the internal timer hold the reset asserted?
The internal timer holds the reset asserted for 240 ms. - What is the current consumption of the ADM809RARTZ-REEL7?
The current consumption is 17 μA. - Is the reset output active-high or active-low?
The reset output is active-low. - What is the minimum VCC for the reset output to remain operational?
The reset output remains operational with VCC as low as 1 V. - Does the ADM809RARTZ-REEL7 have built-in glitch immunity?
Yes, it has built-in glitch immunity to protect against fast transients on VCC. - What are the available reset threshold voltage options?
Seven reset threshold voltage options are available. - What is the operating temperature range of the ADM809RARTZ-REEL7?
The operating temperature range is −40°C to +125°C. - Why is the ADM809RARTZ-REEL7 suitable for portable equipment?
It is suitable due to its low power consumption of 17 μA.
