Overview
The ADM202EARWZ-REEL, produced by Analog Devices Inc., is a robust, high-speed, 2-channel RS-232/V.28 interface device. It operates from a single 5 V power supply and is designed to meet or exceed the TIA/EIA-232-E and V.28 specifications. This device is particularly suited for operation in harsh electrical environments due to its comprehensive electromagnetic compatibility (EMC) and electrostatic discharge (ESD) protection features.
Key Specifications
| Parameter | Value |
|---|---|
| Power Supply | 5 V ± 10% |
| Maximum Data Rate | 230 kbps (ADM202E/ADM1181A), 120 kbps (ADM202) |
| Package Type | 16-lead SOIC (Narrow and Wide) |
| ESD Protection (I/O Pins) | ±15 kV (Human body model), ±8 kV (Contact discharge) |
| EFT Protection (I/O Pins) | ±2 kV |
| Receiver Propagation Delay | 0.1 µs to 1 µs (TPHL), 0.3 µs to 1 µs (TPLH) |
| Transmitter Propagation Delay | 1.0 µs to 1.5 µs |
| Transition Region Slew Rate | 3 V/µs to 8 V/µs |
| Output Voltage Levels | ±10 V (RS-232 levels) |
| Power Dissipation | 10 mW |
Key Features
- High-speed operation with data rates up to 230 kbps (ADM202E/ADM1181A) and 120 kbps (ADM202)
- Compliance with TIA/EIA-232-E and V.28 specifications
- ESD protection in excess of ±15 kV on all I/O lines and electrical fast transient protection up to ±2 kV
- Low power consumption using CMOS technology, minimizing power dissipation to 10 mW
- Internal charge-pump voltage converter generating ±10 V from a single 5 V supply
- Immunity to radiated and conducted interference, including high RF field strengths without special shielding
- Suitable for operation in electrically harsh environments and frequent plug/unplug scenarios
Applications
- General-purpose RS-232 data links
- Portable instruments and PDAs
- Industrial automation and control systems
- Medical devices requiring robust serial communication
- Any environment where high ESD protection and EMC compliance are necessary
Q & A
- What is the maximum data rate of the ADM202EARWZ-REEL?
The maximum data rate is up to 230 kbps for the ADM202E/ADM1181A and up to 120 kbps for the ADM202. - What type of power supply does the ADM202EARWZ-REEL require?
The device operates from a single 5 V power supply ± 10%. - What is the ESD protection level of the ADM202EARWZ-REEL?
The device has ESD protection in excess of ±15 kV on all I/O lines. - What package types are available for the ADM202EARWZ-REEL?
The device is available in 16-lead SOIC (narrow and wide) packages. - Does the ADM202EARWZ-REEL meet EMC standards?
Yes, it complies with EU directives on EMC and meets IEC1000-4-2 and IEC1000-4-4 requirements. - What is the power dissipation of the ADM202EARWZ-REEL?
The power dissipation is minimized to 10 mW using CMOS technology. - How does the ADM202EARWZ-REEL generate RS-232 voltage levels?
The device uses an internal charge-pump voltage converter to generate ±10 V from a single 5 V supply. - Is the ADM202EARWZ-REEL suitable for harsh electrical environments?
Yes, it is designed to operate in harsh electrical environments and is immune to high RF field strengths without special shielding. - What are some typical applications of the ADM202EARWZ-REEL?
Typical applications include general-purpose RS-232 data links, portable instruments, and industrial automation systems. - Does the ADM202EARWZ-REEL have built-in transient protection?
Yes, it includes transient protection circuits on all I/O lines.
