ADM705ARZ-REEL

The ADM705ARZ-REEL is a low-cost microprocessor supervisory circuit, specifically a power supply monitoring chip, manufactured by Analog Devices Inc. (ADI). This chip is designed to monitor the voltage levels in microprocessor systems, computers, controllers, intelligent instruments, and other critical microprocessor-based applications.

Key Features:

1. Power Supply Monitoring:

   • The ADM705ARZ-REEL can monitor 5V power supplies or batteries.
   • It generates a reset output during power-up, power-down, and brownout conditions, ensuring the system remains in a safe state.

2. Reset Functionality:

   • The chip features an independent watchdog timer that monitors microprocessor activity. If the watchdog input has not been toggled within a specified period (typically 1.60 seconds), the watchdog timer will activate, triggering a reset output.
   • The reset output remains operational with a VCC as low as 1V, providing reliable reset functionality even under low voltage conditions.
   • The reset levels are precisely controlled, with a reset threshold of 4.65V for the ADM705 series.

3. Power-Fail Detection:

   • The ADM705ARZ-REEL includes a power-fail input (PFI) and power-fail output (PFO).
   • The power-fail output is activated when the input voltage falls below a certain threshold (1.25V), providing an early warning of potential power failures or low battery conditions.

4. Package and Power Consumption:

   • The ADM705ARZ-REEL is available in narrow 8-lead PDIP and 8-lead SOIC packages, making it suitable for a variety of circuit board layouts.
   • It has low power consumption, with a typical working current of 35μA, making it suitable for battery-powered applications.

5. Operating Temperature Range:

   • The chip operates within a temperature range of -40°C to +85°C, ensuring reliability in diverse environmental conditions.

6. Applications:

   • The ADM705ARZ-REEL is ideal for use in systems that require reliable power supply monitoring and reset functionality.
   • It is commonly used in microprocessor systems, computers, controllers, intelligent instruments, and other critical applications where system stability and reliability are paramount.

In summary, the ADM705ARZ-REEL is a versatile and reliable power supply monitoring chip that offers precise reset functionality, power-fail detection, and low power consumption. Its compact package and wide operating temperature range make it suitable for a variety of applications, ensuring system stability and reliability.