Overview
The ADM809SARTZ-REEL7, produced by Analog Devices Inc., is a microprocessor supervisory circuit designed to monitor the power supply voltage in microprocessor systems. This component ensures that the microprocessor operates within stable voltage conditions by providing a reset output during power-up, power-down, and brownout conditions. The ADM809 series is known for its low power consumption and precision voltage monitoring capabilities, making it suitable for a variety of applications including microprocessor systems, computers, controllers, and intelligent instruments.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage (VCC) | −0.3 V to +6 V | |
| Reset Threshold Voltage | 2.55 V to 2.70 V (for 3 V option), 4.55 V to 4.75 V (for 5 V option) | TA = 25°C |
| Power Consumption | 17 μA | |
| Reset Assertion Time | 55 ms (minimum power-on reset) | TA = −40°C to +150°C |
| Reset Output Type | Active low, push-pull output | |
| Reset Output Voltage Low | 0.3 V (VCC = VTH min, ISINK = 1.2 mA) | |
| Reset Output Voltage High | 0.8 VCC (VCC > VTH max, ISOURCE = 500 μA) | |
| Junction Temperature | −40°C to +150°C | |
| Package Type | 3-Lead SC70 and SOT-23 |
Key Features
- Precision voltage monitoring with options for 3 V and 5 V supply voltages.
- Low power consumption of 17 μA, making it suitable for low power, portable equipment.
- Reset assertion down to 1 V VCC, ensuring the microprocessor remains in a reset state until stable conditions are achieved.
- Active low reset signal with push-pull output.
- Built-in glitch immunity to protect against fast transients on VCC.
- Available in 3-lead SC70 and SOT-23 packages.
Applications
- Microprocessor systems
- Computers
- Controllers
- Intelligent instruments
- Automotive systems
Q & A
- What is the primary function of the ADM809SARTZ-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 are the available voltage monitoring options for the ADM809SARTZ-REEL7?
The component is available with options for monitoring 3 V and 5 V supply voltages.
- How much power does the ADM809SARTZ-REEL7 consume?
The component consumes 17 μA, making it suitable for low power applications.
- What type of reset output does the ADM809SARTZ-REEL7 provide?
The component provides an active low reset signal with a push-pull output.
- What is the minimum power-on reset time for the ADM809SARTZ-REEL7?
The minimum power-on reset time is 55 ms.
- Is the ADM809SARTZ-REEL7 immune to voltage transients?
Yes, it features built-in glitch immunity to protect against fast transients on VCC.
- In what packages is the ADM809SARTZ-REEL7 available?
The component is available in 3-lead SC70 and SOT-23 packages.
- What is the operating junction temperature range for the ADM809SARTZ-REEL7?
The operating junction temperature range is −40°C to +150°C.
- Can the ADM809SARTZ-REEL7 operate with low VCC levels?
Yes, the reset output remains operational with VCC as low as 1 V.
- What are some typical applications for the ADM809SARTZ-REEL7?
Typical applications include microprocessor systems, computers, controllers, intelligent instruments, and automotive systems.
