Overview
The ADM803SAKSZ-REEL7 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 by providing a reset output during power-up, power-down, and brownout conditions. The ADM803 series is known for its low power consumption and precision voltage monitoring capabilities, making it suitable for a wide range of applications, including microprocessor systems, computers, controllers, and intelligent instruments.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Reset Threshold Voltage | 2.93 V | Specific to ADM803SAKSZ-REEL7 model |
| Temperature Range | −40°C to +125°C | |
| Package Type | 3-Lead SC70 | |
| Power Consumption | 17 μA | |
| Reset Output Type | Open-drain | Requires an external pull-up resistor |
| 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 monitor with seven reset threshold voltage options
- Low power consumption of 17 μA, suitable for low power and portable equipment
- Reset output remains operational with VCC as low as 1 V
- Internal timer holds reset asserted for 240 ms during power-up
- Open-drain reset output (requires an external pull-up resistor)
- Built-in glitch immunity for the reset comparator
- Available in 3-lead SC70 package
Applications
- Microprocessor systems
- Computers
- Controllers
- Intelligent instruments
Q & A
- What is the primary function of the ADM803SAKSZ-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 reset threshold voltage for the ADM803SAKSZ-REEL7? The reset threshold voltage is 2.93 V.
- What is the temperature range for the ADM803SAKSZ-REEL7? The temperature range is −40°C to +125°C.
- What type of package does the ADM803SAKSZ-REEL7 come in? It comes in a 3-Lead SC70 package.
- How much power does the ADM803SAKSZ-REEL7 consume? It consumes 17 μA.
- What type of reset output does the ADM803SAKSZ-REEL7 have? It has an open-drain reset output, which requires an external pull-up resistor.
- 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.
- Is the reset output of the ADM803SAKSZ-REEL7 immune to glitches? Yes, the reset comparator features built-in glitch immunity.
- What are some common applications for the ADM803SAKSZ-REEL7? Common applications include microprocessor systems, computers, controllers, and intelligent instruments.
- 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.
