Overview
The ADM213AR-REEL, produced by Analog Devices Inc., is a full-featured, 4-driver/4-receiver RS-232 transceiver integrated circuit. This component is designed to operate from a single 5 V supply and is particularly suited for applications where ±12 V is not available. It features low power consumption and a shutdown mode that reduces power dissipation to less than 5 μW, making it ideal for battery-powered equipment.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Supply Voltage | 5 V | Single supply operation |
| Power Consumption | 15 mW (typical) | Low power operation |
| Shutdown Power | < 5 μW | Low power shutdown mode |
| Receiver Input Levels | ±30 V | Accepts RS-232 signal levels |
| Transmitter Output Levels | ±10 V | RS-232 output levels |
| Receiver Outputs | TTL/CMOS levels | Compatible with TTL/CMOS logic |
| Enable/Shutdown Control | Active low/high | Active low shutdown and active high receiver-enable control |
| Package Type | 28-lead SSOP or SOIC | Compact package options |
| Operating Temperature | -40°C to +85°C | Wide operating temperature range |
Key Features
- Low Power Operation: The ADM213AR-REEL operates at a low power of 15 mW and features a shutdown mode that reduces power dissipation to less than 5 μW, making it suitable for battery-powered systems.
- Single Supply Operation: It operates from a single 5 V supply, eliminating the need for ±12 V supplies.
- Internal Charge Pump: The IC includes two internal charge pump voltage converters that generate the ±10 V required for RS-232 output levels from the 5 V input.
- Receiver and Transmitter Capabilities: It includes four drivers and four receivers, with TTL/CMOS compatible outputs and RS-232 compatible inputs.
- Enable and Shutdown Controls: The IC features active low shutdown and active high receiver-enable controls, with two receivers remaining active during shutdown for ring indicator monitoring.
- Internal Pull-Up and Pull-Down Resistors: Internal 400 kΩ pull-up resistors on TTL/CMOS inputs and 5 kΩ pull-down resistors on RS-232 inputs simplify circuit design.
Applications
- Computers and Peripherals: Suitable for use in computer systems, printers, and other peripherals.
- Modems and Communication Equipment: Ideal for modems and other communication devices requiring RS-232 interfaces.
- Instruments and Industrial Equipment: Used in various industrial and instrumentation applications where reliable serial communication is necessary.
- Battery-Powered Systems: The low power shutdown mode makes it particularly useful in battery-powered devices.
Q & A
- What is the supply voltage for the ADM213AR-REEL?
The ADM213AR-REEL operates from a single 5 V supply.
- What is the power consumption of the ADM213AR-REEL in normal operation?
The typical power consumption is 15 mW.
- How much power does the ADM213AR-REEL consume in shutdown mode?
The power dissipation in shutdown mode is less than 5 μW.
- What are the input and output levels of the ADM213AR-REEL?
The receiver inputs accept RS-232 signal levels (±30 V), and the transmitter outputs are at RS-232 levels (±10 V). The receiver outputs are TTL/CMOS compatible.
- What package types are available for the ADM213AR-REEL?
The ADM213AR-REEL is available in 28-lead SSOP and SOIC packages.
- What is the operating temperature range of the ADM213AR-REEL?
The operating temperature range is -40°C to +85°C.
- Does the ADM213AR-REEL have internal charge pump voltage converters?
Yes, it includes two internal charge pump voltage converters to generate the ±10 V required for RS-232 output levels from the 5 V input.
- What is the purpose of the enable and shutdown controls on the ADM213AR-REEL?
The enable control allows the receiver outputs to be enabled or disabled, and the shutdown control reduces power consumption to less than 5 μW. Two receivers remain active during shutdown for ring indicator monitoring.
- Are there internal pull-up and pull-down resistors on the ADM213AR-REEL?
Yes, there are 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 for the ADM213AR-REEL?
Common applications include computers, peripherals, modems, communication equipment, instruments, and industrial equipment, especially in battery-powered systems.
