Overview
The ADM803MAKSZ-REEL7 is a supervisory circuit produced by Analog Devices Inc., designed to monitor the power supply voltage in microprocessor systems. This component is part of the ADM803 series and is specifically configured with a reset threshold voltage of 4.38V. It is housed in a 3-lead SC70 package, making it suitable for compact and low-power applications. The ADM803 series is known for its precision voltage monitoring and low power consumption, making it ideal for use in various electronic systems that require reliable power supervision.
Key Specifications
| Parameter | Value |
|---|---|
| Reset Threshold Voltage | 4.38 V |
| Package Type | 3-Lead SC70 |
| Temperature Range | −40°C to +125°C |
| Power 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 monitor with seven reset threshold voltage options
- Low power consumption of 17 μA, suitable for low-power and portable equipment
- Active low reset signal with open-drain output stage requiring an external pull-up resistor
- Internal timer holds reset asserted for 240 ms during power-up to ensure system stability
- Glitch immunity to fast transients on VCC
- Available in 3-lead SC70 package
Applications
- Microprocessor systems
- Computers
- Controllers
- Intelligent instruments
Q & A
- What is the primary function of the ADM803MAKSZ-REEL7? The primary function is to monitor the power supply voltage in microprocessor systems and provide a reset signal during power-up, power-down, or brownout conditions.
- What is the reset threshold voltage for the ADM803MAKSZ-REEL7? The reset threshold voltage is 4.38 V.
- What type of package does the ADM803MAKSZ-REEL7 come in? It comes in a 3-lead SC70 package.
- What is the temperature range for the ADM803MAKSZ-REEL7? The temperature range is −40°C to +125°C.
- How much power does the ADM803MAKSZ-REEL7 consume? It consumes 17 μA.
- What type of reset output does the ADM803MAKSZ-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.
- Is the ADM803MAKSZ-REEL7 immune to fast transients on VCC? Yes, it features built-in glitch immunity.
- In what types of systems is the ADM803MAKSZ-REEL7 typically used? It is typically used in microprocessor systems, computers, controllers, and intelligent instruments.
- Does the ADM803MAKSZ-REEL7 require an external pull-up resistor for the reset output? Yes, it requires an external pull-up resistor for the open-drain reset output.
