Overview
The ADM213ARS, produced by Analog Devices Inc., is a quad transmitter and quint receiver RS-232 transceiver. This device is part of the ADM2xx family, designed to operate from a single 5 V power supply, making it suitable for applications where ±12 V is not available. It features low power consumption and a shutdown mode, reducing power dissipation to less than 5 μW, which is particularly beneficial for battery-powered systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Output Voltage Swing | ±5 | ±9 | ±9 | V | All transmitter outputs loaded with 3 kΩ to ground |
| VCC Power Supply Current | 5 | 13 | 13 | mA | No load |
| Shutdown Supply Current | 1 | 10 | 10 | μA | |
| Input Logic Threshold Low (VINL) | 0.8 | V | TIN, EN, SD | ||
| Input Logic Threshold High (VINH) | 2.0 | V | TIN, EN, SD | ||
| Logic Pull-Up Current | 10 | 25 | 25 | μA | TIN = 0 V |
| RS-232 Input Voltage Range | -30 | +30 | V |
Key Features
- Low Power Consumption: The device operates at low power, with a shutdown mode that reduces power dissipation to less than 5 μW, making it ideal for battery-powered equipment.
- Single 5 V Power Supply: The ADM213ARS can operate from a single 5 V power supply, converting it to the ±10 V required for RS-232 output levels using internal charge pump voltage converters.
- Quad Transmitter and Quint Receiver: The device features four transmitters and five receivers, providing comprehensive RS-232 interface capabilities.
- Enable and Shutdown Pins: The device includes enable (EN) and shutdown (SD) pins, allowing for control over the receivers and transmitters. Two receivers remain active during shutdown for ring indicator monitoring).
- Internal Pull-Up and Pull-Down Resistors: The device includes internal 400 kΩ pull-up resistors on each TTL/CMOS input and 5 kΩ pull-down resistors on each RS-232 input).
Applications
- Computers and Peripherals: Suitable for use in computer systems and peripheral devices due to its compatibility with RS-232 and V.28 interfaces).
- Modems and Printers: Can be used in modem and printer applications where reliable RS-232 communication is required).
- Instruments and Industrial Equipment: Ideal for various industrial and instrumentation applications where low power and reliable communication are essential).
- Battery-Powered Equipment: The low power shutdown mode makes it particularly useful for battery-powered systems).
Q & A
- What is the power supply voltage for the ADM213ARS?
The ADM213ARS operates from a single 5 V power supply).
- How many transmitters and receivers does the ADM213ARS have?
The device features four transmitters and five receivers).
- What is the shutdown power consumption of the ADM213ARS?
The shutdown power consumption is less than 5 μW).
- Does the ADM213ARS have internal pull-up and pull-down resistors?
Yes, it includes internal 400 kΩ pull-up resistors on each TTL/CMOS input and 5 kΩ pull-down resistors on each RS-232 input).
- What is the RS-232 input voltage range for the ADM213ARS?
The RS-232 input voltage range is –30 V to +30 V).
- Can the ADM213ARS be used in battery-powered systems?
Yes, it is particularly useful for battery-powered systems due to its low power shutdown mode).
- What package type does the ADM213ARS come in?
The device comes in a 28-lead SSOP package).
- Does the ADM213ARS have enable and shutdown pins?
Yes, it includes enable (EN) and shutdown (SD) pins for controlling the receivers and transmitters).
- How many receivers remain active during shutdown?
Two receivers remain active during shutdown for ring indicator monitoring).
- What are some common applications for the ADM213ARS?
Common applications include computers, peripherals, modems, printers, and industrial equipment).
