Overview
The ADM208EARUZ-REEL, produced by Analog Devices Inc., is a quad RS-232 transceiver integrated circuit designed for serial communication applications. This device is part of the ADM2xx family and is backward compatible with earlier models, making it an ideal choice for upgrading existing designs. The ADM208E features a robust set of specifications and protections, including ESD protection and transient protection on all I/O lines, ensuring reliable operation in various environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 5 | V |
| Number of Drivers | 4 | - |
| Number of Receivers | 4 | - |
| ESD Protection | ±15 kV (Air-gap), ±8 kV (Contact) | kV |
| Shutdown Enable | No | - |
| Operating Temperature Range | −40°C to +85°C | °C |
| Storage Temperature Range | −65°C to +150°C | °C |
| Lead Temperature (Soldering, 10 sec) | 300°C | °C |
| Maximum Data Rate | 230 kbps | kbps |
| Receiver Propagation Delay | 0.4 to 2 μs | μs |
| Output Voltage Swing | ±5.0 to ±9.0 V | V |
| Output Resistance | 300 Ω | Ω |
| Package Type | 24-Lead TSSOP | - |
Key Features
- Compliance with EIA-232 Standard: The ADM208E complies with the EIA-232 standard, ensuring compatibility with a wide range of serial communication systems.
- Charge Pump Voltage Converter: The device includes a charge pump voltage converter that generates ±10 V supply from a 5 V input, using a switched capacitor technique.
- ESD Protection: Provides ESD protection to IEC 1000-4-2 standards, with ±15 kV air-gap discharge and ±8 kV contact discharge.
- Transient Protection: Features transient protection circuitry on all I/O lines to protect against voltage spikes and other transient events.
- 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.
- High-Speed Data Transfer: Supports data rates up to 230 kbps, making it suitable for high-speed serial communication applications.
Applications
- Industrial Automation: Used in industrial control systems, PLCs, and other automation equipment that require reliable serial communication.
- Medical Devices: Suitable for medical equipment that needs robust and reliable serial communication interfaces.
- Point of Sale (POS) Systems: Employed in POS terminals and other retail systems that rely on serial communication for data transfer.
- Embedded Systems: Used in various embedded systems that require serial communication, such as in IoT devices, routers, and modems.
Q & A
- What is the supply voltage for the ADM208E?
The supply voltage for the ADM208E is 5 V.
- How many drivers and receivers does the ADM208E have?
The ADM208E has 4 drivers and 4 receivers.
- What is the ESD protection level of the ADM208E?
The ADM208E provides ESD protection up to ±15 kV (air-gap) and ±8 kV (contact).
- What is the maximum data rate supported by the ADM208E?
The ADM208E supports data rates up to 230 kbps.
- What type of package is the ADM208EARUZ-REEL available in?
The ADM208EARUZ-REEL is available in a 24-Lead TSSOP package.
- Does the ADM208E have internal pull-up and pull-down resistors?
Yes, the ADM208E includes internal 400 kΩ pull-up resistors on TTL/CMOS inputs and 5 kΩ pull-down resistors on RS-232 inputs.
- What is the operating temperature range of the ADM208E?
The operating temperature range of the ADM208E is −40°C to +85°C.
- Does the ADM208E have transient protection?
Yes, the ADM208E features transient protection circuitry on all I/O lines.
- Is the ADM208E backward compatible with earlier ADM2xx models?
Yes, the ADM208E is backward compatible with earlier ADM2xx models, facilitating easy upgrades of older designs.
- What is the purpose of the charge pump voltage converter in the ADM208E?
The charge pump voltage converter generates a ±10 V supply from the 5 V input, which is necessary for RS-232 communication.
