Overview
The ADM695AR-REEL, produced by Analog Devices Inc., is part of the ADM690-ADM695 family of microprocessor supervisory circuits. These circuits provide comprehensive single-chip solutions for power supply monitoring and battery control functions in microprocessor systems. They are designed to ensure reliable operation of microprocessors by monitoring power supply conditions, managing battery backup, and providing various protective features.
Key Specifications
| Parameter | Min | Typ | Max | Units | Test Conditions/Comments |
|---|---|---|---|---|---|
| Operating Voltage Range (VCC) | 2.5 | - | 5.5 | V | - |
| Power Consumption | - | 5 | - | mW | - |
| Reset Assertion Voltage | 1 | - | - | V | VCC as low as 1 V |
| Watchdog Timer Periods | 100 ms, 1.6 s, or Adjustable | - | - | - | - |
| Switch On-Resistance | 1.5 Ω (Normal), 20 Ω (Backup) | - | - | Ω | - |
| High Current Drive | - | - | 100 | mA | - |
| Standby Current | - | 600 | - | nA | - |
| Temperature Range | -40 | - | 85 | °C | - |
Key Features
- Precision voltage monitor with reset assertion down to 1 V VCC.
- Low power consumption (5 mW).
- High current drive (up to 100 mA) without the need for an external pass transistor.
- Extremely fast gating of chip enable signals (5 ns).
- Automatic battery backup power switching.
- Watchdog timer with periods of 100 ms, 1.6 s, or adjustable.
- Write protection of CMOS RAM or EEPROM (in 16-pin versions).
- Separate watchdog timeout, backup battery switchover, and low VCC status outputs (in 16-pin versions).
Applications
- Microprocessor systems.
- Computers.
- Controllers.
- Intelligent instruments.
- Automotive systems.
Q & A
- What is the primary function of the ADM695AR-REEL?
The primary function is to provide power supply monitoring and battery control functions in microprocessor systems. - What is the operating voltage range of the ADM695AR-REEL?
The operating voltage range is from 2.5 V to 5.5 V. - How much power does the ADM695AR-REEL consume?
The power consumption is typically 5 mW. - What is the minimum voltage at which the reset assertion is guaranteed?
The reset assertion is guaranteed with VCC as low as 1 V. - What are the available watchdog timer periods?
The watchdog timer periods are 100 ms, 1.6 s, or adjustable. - What is the maximum current drive of the ADM695AR-REEL?
The maximum current drive is up to 100 mA. - What is the standby current of the ADM695AR-REEL?
The standby current is 600 nA. - What is the temperature range of the ADM695AR-REEL?
The temperature range is from -40°C to +85°C. - Does the ADM695AR-REEL support write protection of CMOS RAM or EEPROM?
Yes, the 16-pin versions support write protection of CMOS RAM or EEPROM. - What are some of the applications of the ADM695AR-REEL?
Applications include microprocessor systems, computers, controllers, intelligent instruments, and automotive systems.
