Overview
The ADM803RAKSZ-REEL7 is a microprocessor supervisory circuit produced by Analog Devices Inc. This component is designed to monitor the power supply voltage in microprocessor systems, providing essential reset functionality during power-up, power-down, and brownout conditions. It is particularly suited for low-power, portable equipment due to its low current consumption of 17 μA.
Key Specifications
| Parameter | Value |
|---|---|
| Reset Threshold Voltage | 2.63 V |
| Temperature Range | −40°C to +125°C |
| Package Type | 3-Lead SC70 |
| Current Consumption | 17 μA |
| Reset Output Type | Active Low, Open-Drain |
| Reset Assertion Time | 240 ms (minimum power-on reset) |
| VCC to Reset Delay | 20 μs |
| Reset Output Voltage Low | 0.3 V (VCC = VTH min, ISINK = 1.2 mA) |
Key Features
- Precision voltage monitoring with seven reset threshold voltage options.
- Low power consumption of 17 μA, making it suitable for portable equipment.
- Active low reset signal with an open-drain output stage requiring an external pull-up resistor.
- Internal timer holds reset asserted for 240 ms during power-up.
- Reset output remains operational with VCC as low as 1 V.
- Built-in glitch immunity to fast transients on VCC.
Applications
- Microprocessor systems.
- Computers.
- Controllers.
- Intelligent instruments.
Q & A
- What is the primary function of the ADM803RAKSZ-REEL7? 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 is the reset threshold voltage for the ADM803RAKSZ-REEL7? The reset threshold voltage is 2.63 V.
- What is the temperature range for the ADM803RAKSZ-REEL7? The temperature range is −40°C to +125°C.
- What type of package does the ADM803RAKSZ-REEL7 come in? It comes in a 3-Lead SC70 package.
- How much current does the ADM803RAKSZ-REEL7 consume? It consumes 17 μA.
- What type of reset output does the ADM803RAKSZ-REEL7 have? It has an active low, open-drain reset output.
- How long does the internal timer hold the reset asserted during power-up? The internal timer holds the reset asserted for 240 ms during power-up.
- What is the minimum VCC voltage for the reset output to remain operational? The reset output remains operational with VCC as low as 1 V.
- Does the ADM803RAKSZ-REEL7 have built-in glitch immunity? Yes, it has built-in glitch immunity to fast transients on VCC.
- What are some common applications for the ADM803RAKSZ-REEL7? Common applications include microprocessor systems, computers, controllers, and intelligent instruments.
