Overview
The ADM691AARNZ-REEL7 is a microprocessor supervisory circuit manufactured by Analog Devices Inc. This component provides comprehensive single-chip solutions for power supply monitoring and battery control functions in microprocessor systems. It includes features such as power-on reset, backup-battery switchover, watchdog timer, CMOS RAM write protection, and power-failure warning. The ADM691A is designed to ensure reliable operation in various applications, including microprocessor systems, computers, controllers, intelligent instruments, and automotive systems.
Key Specifications
| Parameter | Value |
|---|---|
| Reset Threshold Voltage | 4.65V ± 3% |
| Supply Voltage | 0 to 5.5V |
| Reset Output Type | Active-High, Active-Low, Open-Drain |
| No. of Monitored Voltages | 1 Monitor |
| No. of Pins | 16 Pins |
| IC Case / Package | NSOIC (16-lead narrow SOIC) |
| IC Mounting | Surface Mount |
| Delay Time | 200ms (or adjustable) |
| Operating Temperature | -40°C to +85°C |
| Standby Current | 1 mA |
| Watchdog Timeout | 100ms, 1.6s, adjustable |
Key Features
- Low power consumption
- Precision voltage monitor with a 4.65V threshold voltage
- Reset time delay of 200ms or adjustable
- Standby current of 1 mA
- Fast on-board gating of chip enable signals
- Battery backup switching for CMOS RAM and low power logic
- Watchdog timer with adjustable timeout periods
- Power-failure warning with a 1.25 V threshold detector
- Operational down to 1 V supply voltage
Applications
- Microprocessor systems
- Computers and controllers
- Intelligent instruments
- Automotive systems
- Critical microprocessor power monitoring
Q & A
- What is the primary function of the ADM691AARNZ-REEL7?
The primary function is to provide power supply monitoring and battery control functions in microprocessor systems.
- What is the reset threshold voltage of the ADM691AARNZ-REEL7?
The reset threshold voltage is 4.65V ± 3%.
- What are the available package types for the ADM691A?
The ADM691A is available in 16-pin DIP, SO, and TSSOP packages.
- What is the operating temperature range of the ADM691AARNZ-REEL7?
The operating temperature range is -40°C to +85°C.
- Does the ADM691AARNZ-REEL7 support watchdog timer functionality?
- What is the standby current of the ADM691AARNZ-REEL7?
The standby current is 1 mA.
- Can the ADM691AARNZ-REEL7 be used in automotive systems?
- What type of reset output does the ADM691AARNZ-REEL7 provide?
The reset output type is Active-High, Active-Low, and Open-Drain.
- Does the ADM691AARNZ-REEL7 support battery backup switching?
- Is the ADM691AARNZ-REEL7 RoHS compliant?
