Supervisory Circuits
Analog Devices power supply voltage monitors and microprocessor supervisors monitor positive and negative power supplies, with integration of up to eight supply monitors in a tiny package. These devices generate a reset signal if any power supply goes above or below the user-defined threshold. Reset times are usually fixed at 200 ms or are adjustable with a single capacitor. Aside from power supply monitoring, CPUs and ASICs can also be supervised by an integrated watchdog timer.
Subcategories
Product Selection Table
Latest Resources
Application Notes
- In-Circuit Programming for the MAX16046–MAX16049 EEPROM-Programmable System Managers
- In-Circuit Programming of the MAX16031/MAX16032 EEPROM-Based System Monitors
- Advantages of Using a MicroMonitor and a Simple Application Demonstrating the Use of a DS1232
- Using the LTC2937 A Step-by-Step Guide to Sequencing and Supervision PDF
Design Notes
- NEW Adjustable Hysteresis in Microprocessor-Reset ICs
- NEW Circuit Transfers Resistance Value Through Isolation Barrier
- NEW How to Divide and Conquer the Divider: Practical Resistive Dividers, Made Easy
- NEW Battery Selection for Security Manager Applications
- NEW Battery Monitoring in NV SRAM Modules
Product Selector Card
- Voltage Monitors and Supervisors Product Highlights PDF
- Power System Manager and Super Sequencer Selection Guide PDF
- Programmable Six Supply Sequencer and Supervisor PDF
- Voltage Monitors & Supervisors Quick Guide PDF
- Digital Power System Management PDF
Technical Articles
- The ABCs of Glitch-free Voltage Supervisors
- How Glitch-Free Supervisors Aid in High-Reliability Applications
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Adding Hysteresis for Smooth Undervoltage and Overvoltage Lockout
Analog Dialogue
- A Reliable Power-Up and Power-Down Sequence
- Build In Automotive Insurance with Supervisor and Watchdog Policies