Overview
The ADM693ARZ-REEL from Analog Devices Inc. is a microprocessor supervisory circuit designed to provide comprehensive power supply monitoring and battery control functions in microprocessor systems. This device offers a single-chip solution that includes features such as microprocessor reset, backup battery switchover, watchdog timer, CMOS RAM write protection, and power failure warning. Fabricated using an advanced epitaxial CMOS process, it combines low power consumption, fast chip enable gating, and high reliability.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Operating Voltage Range | 4.75 | 5.5 | V | ||
| Reset Threshold | 4.25 | 4.4 | 4.48 | V | |
| Reset Time | 50 ms | Or Adjustable | |||
| Watchdog Timeout Period | 100 ms | 1.6 s | Or Adjustable | ||
| Standby Current | 600 nA | ||||
| Operating Temperature Range | -40°C | 85°C | |||
| Package Style | 16-lead SOIC | ||||
| Chip Enable Gating Propagation Delay | 6 ns | 10 ns | RIN = 50 Ω, CLOAD = 50 pF |
Key Features
- Precision voltage monitoring with a nominal reset threshold of 4.4V and a tolerance of ±2%.
- Reset assertion down to 1V VCC, ensuring reliable operation even at low power levels.
- Automatic battery backup power switching with minimal voltage drop, allowing for high current drive up to 100mA without an external pass transistor.
- Low power consumption of 5mW and a standby current of 600nA).
- Fast onboard gating of chip enable signals with a propagation delay of 6-10ns).
- Watchdog timer with adjustable timeout periods (100ms, 1.6s, or adjustable)).
- CMOS RAM write protection to safeguard data during power failures).
- High current drive capability of up to 100mA and low switch-on resistance).
Applications
- Microprocessor systems
- Computers
- Controllers
- Intelligent instruments
- Automotive systems
Q & A
- What is the primary function of the ADM693ARZ-REEL?
The primary function of the ADM693ARZ-REEL is to provide comprehensive power supply monitoring and battery control functions in microprocessor systems.
- What is the operating voltage range of the ADM693ARZ-REEL?
The operating voltage range is from 4.75V to 5.5V.
- What is the reset threshold voltage for the ADM693ARZ-REEL?
The nominal reset threshold voltage is 4.4V.
- Does the ADM693ARZ-REEL support automatic battery backup power switching?
- What is the maximum current drive capability of the ADM693ARZ-REEL?
The maximum current drive capability is up to 100mA.
- What is the standby current of the ADM693ARZ-REEL?
The standby current is 600nA.
- What is the operating temperature range of the ADM693ARZ-REEL?
The operating temperature range is from -40°C to 85°C.
- What package style is the ADM693ARZ-REEL available in?
The ADM693ARZ-REEL is available in a 16-lead SOIC package.
- Does the ADM693ARZ-REEL have a watchdog timer feature?
- What are some common applications of the ADM693ARZ-REEL?
