Overview
The ADM208AR is a high-performance RS-232 transceiver integrated circuit produced by Analog Devices Inc. This component is part of the ADM2xx family, designed to meet the EIA-232-E specifications using a single 5 V digital supply. The ADM208AR is particularly useful in applications requiring reliable serial communication with low power consumption and high data rates.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Number of Drivers/Receivers | - | - | 4/4 | - | - |
| Duplex | - | - | Full | - | - |
| Receiver Hysteresis | - | - | 650 mV | - | - |
| Data Rate | - | - | 120 kbps | - | - |
| Voltage - Supply | 4.5 V | - | 5.5 V | - | - |
| Operating Temperature | -40°C | - | 85°C | - | - |
| Mounting Type | - | - | Surface Mount | - | - |
| Package / Case | - | - | 24-SOIC (0.295", 7.50mm Width) | - | - |
| Output Voltage Swing | ±5 V | ±9 V | - | - | All transmitter outputs loaded with 3 kΩ to ground |
| VCC Power Supply Current | 5 mA | - | 13 mA | - | No load |
| Shutdown Supply Current | 1 μA | - | 10 μA | - | - |
Key Features
- Integrated Step-Up Voltage Converters: The ADM208AR integrates charge pump voltage converters to generate ±10 V supply from a single 5 V input, ensuring compliance with EIA-232-E specifications.
- Low Power Consumption: Features a low power shutdown mode that reduces power dissipation to less than 5 μW, making it suitable for battery-powered systems.
- High Data Rate: Supports data rates up to 120 kbps, facilitating fast serial communication.
- Full Duplex Operation: Supports full duplex communication with four drivers and four receivers.
- Receiver Hysteresis: Includes a receiver hysteresis of 650 mV to improve noise immunity.
- Wide Operating Temperature Range: Operates over a temperature range of -40°C to 85°C, making it suitable for various environmental conditions).
Applications
- Industrial Automation: Used in industrial control systems and automation equipment where reliable serial communication is crucial.
- Medical Devices: Suitable for medical devices that require low power consumption and high reliability in serial communication).
- Embedded Systems: Often used in embedded systems, such as microcontroller-based projects, due to its low power and high data rate capabilities).
- Point-of-Sale (POS) Systems: Applied in POS systems and other commercial equipment requiring serial communication interfaces).
- Automotive Systems: Used in automotive systems for serial communication between different modules and devices).
Q & A
- What is the data rate supported by the ADM208AR?
The ADM208AR supports data rates up to 120 kbps).
- What is the operating temperature range of the ADM208AR?
The ADM208AR operates over a temperature range of -40°C to 85°C).
- How many drivers and receivers does the ADM208AR have?
The ADM208AR has four drivers and four receivers).
- What is the supply voltage range for the ADM208AR?
The supply voltage range for the ADM208AR is 4.5 V to 5.5 V).
- Does the ADM208AR support full duplex operation?
Yes, the ADM208AR supports full duplex operation).
- What is the receiver hysteresis of the ADM208AR?
The receiver hysteresis of the ADM208AR is 650 mV).
- Is the ADM208AR suitable for battery-powered systems?
Yes, the ADM208AR features a low power shutdown mode, making it suitable for battery-powered systems).
- What type of package does the ADM208AR come in?
The ADM208AR comes in a 24-SOIC package).
- Is the ADM208AR RoHS compliant?
Yes, the ADM208AR is available in RoHS compliant versions).
- What is the output voltage swing of the ADM208AR?
The output voltage swing of the ADM208AR is ±5 V to ±9 V when loaded with 3 kΩ to ground).
