Overview
The ADM809LARTZ-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 provides a reset output to hold the microprocessor in a reset state until the power supply voltage stabilizes. The ADM809LARTZ-REEL7 is particularly suited for low-power, portable equipment due to its low current consumption of 17 μA.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOT-23, SC70 |
| Reset Output Type | Active Low |
| Reset Threshold Voltage Options | Multiple options (e.g., 3 V, 5 V) |
| Power-On Reset Time | 55 ms (typical) |
| Current Consumption | 17 μA |
| Operating Temperature Range | −40°C to +150°C |
| VCC Range | −0.3 V to +6 V |
| Reset Output Voltage Low | 0.3 V (VCC = VTH min, ISINK = 1.2 mA) |
| Junction Temperature | −40°C to +150°C |
Key Features
- Precision voltage monitoring with multiple reset threshold voltage options.
- Low power consumption of 17 μA, making it suitable for portable equipment.
- Active low reset output that remains operational with VCC as low as 1 V.
- Built-in glitch immunity to protect against fast transients on VCC.
- Internal timer holds reset asserted for 55 ms during power-up to ensure stable conditions.
- Available in SOT-23 and SC70 packages.
Applications
- Microprocessor systems.
- Computers and controllers.
- Intelligent instruments.
- Automotive systems.
Q & A
- What is the primary function of the ADM809LARTZ-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 is the typical power-on reset time for the ADM809LARTZ-REEL7? The typical power-on reset time is 55 ms.
- How much current does the ADM809LARTZ-REEL7 consume? It consumes 17 μA.
- What are the available package types for the ADM809LARTZ-REEL7? It is available in SOT-23 and SC70 packages.
- What is the operating temperature range of the ADM809LARTZ-REEL7? The operating temperature range is −40°C to +150°C.
- Is the reset output active high or active low? The reset output is active low.
- What is the minimum VCC voltage at which the reset output remains operational? The reset output remains operational with VCC as low as 1 V.
- Does the ADM809LARTZ-REEL7 have built-in glitch immunity? Yes, it has built-in glitch immunity to protect against fast transients on VCC.
- What are some common applications of the ADM809LARTZ-REEL7? Common applications include microprocessor systems, computers, controllers, intelligent instruments, and automotive systems.
- What is the VCC range for the ADM809LARTZ-REEL7? The VCC range is −0.3 V to +6 V.
