ADM691AR

The ADM691AR is a voltage supervisor and reset circuit designed to monitor power supply levels in electronic devices. It ensures that microcontrollers and other digital systems operate reliably by providing timely reset signals during power-up, power-down, and brown-out conditions. The ADM691AR features a precise voltage monitoring capability, typically with a threshold of 5V, and it incorporates a built-in delay function, allowing for stable operation before releasing the reset signal.
Key features include low power consumption, a compact package, and fast response times, making it suitable for various applications in consumer electronics, automotive systems, and industrial equipment. The ADM691AR is often used in systems that require reliable operation under varying power conditions, ensuring that devices start and function correctly without data corruption or malfunction due to voltage fluctuations.

The ADM691AR is a microprocessor supervisory circuit designed to monitor power supplies in digital systems. Its key features include:
1. Voltage Monitoring: It monitors power supply voltages and provides reset signals when these voltages fall below a specified threshold.
2. Reset Pulse: Generates a reset pulse for a set duration (typical 200 ms) after power-up or when a fault condition occurs.
3. Adjustable Thresholds: Offers adjustable reset thresholds to accommodate various logic levels and system requirements.
4. Low Power Consumption: Designed for low power operation, making it suitable for battery-powered applications.
5. Active Low Reset Output: Provides an active low signal that can directly reset microcontrollers and digital logic.
6. Wide Operating Voltage Range: Supports a broad operating voltage input range.
7. Temperature Range: Rated for operation across an extended temperature range suitable for various environments.
These features make the ADM691AR ideal for ensuring reliable operation in embedded systems and preventing erroneous operations during power fluctuations.

The ADM691AR is packaged in an 8-lead PDIP (Plastic Dual In-line Package).

The ADM691AR is a microprocessor supervisor used for monitoring power supply voltages. It features a 16-pin Dual In-Line Package (DIP) configuration.
Pin Count: 16 Pins
Pin Functions:
1. VCC (Pin 1): Power supply input.
2. GND (Pin 8): Ground reference.
3. RESET (Pin 4): Active LOW reset output.
4. RESET_DELAY (Pin 3): Timing configuration for reset delay.
5. VREF (Pin 2): Reference voltage output.
6. SENSE (Pin 5): Voltage sensing input for monitoring.
7. NC (Pins 6, 7, 9, 10): No connect (not used).
8. COMP (Pin 11): Compensation pin for stability.
9. VTH (Pin 12): Threshold voltage set point.
10. FUNC (Pin 13): Function select pin for options.
11. TEST (Pin 14): Test pin for factory use.
12. FAULT (Pin 15): Fault indication output.
13. BYPASS (Pin 16): Bypass capacitor connection for stability.
This device ensures reliable operation of microprocessors by providing reset signals and monitoring supply voltages.

The ADM691AR is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965 and headquartered in Norwood, Massachusetts, the company serves a broad range of markets, including automotive, communication, industrial, healthcare, and consumer electronics. Analog Devices is known for its innovative technologies and solutions that enable precise data conversion and signal processing, making them a key player in the electronics industry.

The ADM691AR is a voltage monitoring and supervisory circuit used primarily in applications such as power supply monitoring, microprocessor and DSP reset control, battery management systems, and automotive systems. It ensures system reliability by providing voltage supervision, enabling reset functions, and preventing undesired operation during voltage fluctuations.

The ADM691AR is a voltage supervisor. Equivalent products include the MAX810, MAX811, LM393, TPS3808, and NCP805. Always verify specific voltage thresholds and package types to ensure compatibility.