Overview
The ADM208AR-REEL is a part of the ADM2xx family of RS-232 drivers/receivers produced by Analog Devices Inc. This integrated circuit is designed to solve interface problems by meeting the EIA-232-E specifications while operating from a single +5 V digital power supply. The ADM208AR-REEL integrates step-up voltage converters and level shifting transmitters and receivers onto the same chip, utilizing CMOS technology to minimize power dissipation.
This component is particularly useful for applications requiring reliable RS-232 communication interfaces and is compatible with a range of devices that require such interfaces.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Temperature Range | –40°C to +85°C | °C |
| Power Supply Voltage | +5 V | V |
| Power Consumption | 15 mW (typical) | mW |
| Power Shutdown | ≤ 5 μW | μW |
| RS-232 Input Threshold Low | 0.8 to 1.25 V | V |
| RS-232 Input Threshold High | 1.9 to 2.4 V | V |
| RS-232 Input Hysteresis | 0.65 V | V |
| RS-232 Input Resistance | 3 to 7 kΩ | kΩ |
| TTL/CMOS Output Voltage Low (VOL) | 0.4 V (IOUT = 1.6 mA) | V |
| TTL/CMOS Output Voltage High (VOH) | 3.5 V (IOUT = –1.0 mA) | V |
| Output Enable Time (TEN) | 115 ns (CL = 150 pF) | ns |
| Output Disable Time (TDIS) | 165 ns (RL = 1 kΩ) | ns |
| Propagation Delay | 0.5 to 5 μs | μs |
| Package Type | 24-lead SOIC_W | |
| RoHS Compliance | Yes |
Key Features
- Low Power Consumption: The ADM208AR-REEL operates at a low power of 15 mW and can be shut down to consume less than 5 μW, making it energy-efficient.
- Single +5 V Power Supply: This component operates from a single +5 V digital power supply, simplifying the power supply requirements.
- RS-232 Compliance: Meets the EIA-232-E specifications, ensuring reliable RS-232 communication.
- Internal Voltage Converters: Integrates step-up voltage converters to generate the necessary voltage levels for RS-232 communication.
- CMOS Technology: Utilizes CMOS technology to minimize power dissipation.
- Latch-up Free: Designed to be latch-up free, enhancing reliability.
- Internal Pull-up and Pull-down Resistors: Includes internal 400 kΩ pull-up resistors on TTL/CMOS inputs and 5 kΩ pull-down resistors on RS-232 inputs.
Applications
- Computers and Peripherals: Suitable for use in computer systems and peripherals that require RS-232 interfaces.
- Modems and Printers: Ideal for modems, printers, and other communication devices.
- Industrial and Instrumentation: Used in various industrial and instrumentation applications where reliable serial communication is necessary.
- Automotive and Consumer Electronics: Can be applied in automotive systems and high-performance consumer electronics that require robust serial interfaces.
Q & A
- What is the operating temperature range of the ADM208AR-REEL?
The operating temperature range is –40°C to +85°C.
- What is the power supply voltage for the ADM208AR-REEL?
The component operates from a single +5 V digital power supply.
- What is the typical power consumption of the ADM208AR-REEL?
The typical power consumption is 15 mW.
- Does the ADM208AR-REEL meet EIA-232-E specifications?
Yes, it meets the EIA-232-E specifications.
- What type of technology is used in the ADM208AR-REEL to minimize power dissipation?
CMOS technology is used to minimize power dissipation.
- What is the package type of the ADM208AR-REEL?
The package type is 24-lead SOIC_W.
- Is the ADM208AR-REEL RoHS compliant?
Yes, it is RoHS compliant.
- What are the internal pull-up and pull-down resistors in the ADM208AR-REEL?
Internal 400 kΩ pull-up resistors on TTL/CMOS inputs and 5 kΩ pull-down resistors on RS-232 inputs.
- What are some common applications of the ADM208AR-REEL?
Common applications include computers, peripherals, modems, printers, industrial and instrumentation devices, and automotive systems.
- How does the ADM208AR-REEL handle power shutdown?
The component can be shut down to consume less than 5 μW.
