Overview
The ADM202EARUZ-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 for operation in harsh electrical environments. The device is compliant with the EU directive on electromagnetic compatibility (EMC) and offers high levels of electrostatic discharge (ESD) protection and electromagnetic immunity.
Key Specifications
| Parameter | Value |
|---|---|
| Power Supply Voltage | 5 V |
| Maximum Data Rate | 230 kbps |
| Transmitter Propagation Delay | 1.0 to 1.5 µs (RL = 3 kΩ, CL = 1000 pF) |
| Receiver Propagation Delay | 0.1 to 1 µs (RL = 3 kΩ to 7 kΩ, CL = 50 pF to 1000 pF) |
| ESD Protection (I/O Pins) | ±15 kV (Human body model), ±8 kV (IEC1000-4-2 contact discharge) |
| EFT Protection (I/O Pins) | ±2 kV (IEC1000-4-4) |
| EMI Immunity | 10 V/m (IEC1000-4-3) |
| Package Type | 16-TSSOP |
Key Features
- High-speed data transmission up to 230 kbps
- Compliance with EIA-232E and CCITT V.28 specifications
- Low power consumption
- ESD protection in excess of ±15 kV on all I/O lines
- Fast transient/burst protection (IEC1000-4-4) and radiated immunity (IEC1000-4-3)
- Low EMI emissions (EN55022, CISPR22)
- Internal 5 kΩ pull-down resistor on each RS-232 input
- CMOS output logic levels
Applications
- General-purpose RS-232 data links
- Portable instruments
- PDAs and other handheld devices
- Electrically harsh environments where RS-232 cables are frequently plugged/unplugged
Q & A
- What is the maximum data rate of the ADM202EARUZ-REEL?
The maximum data rate is 230 kbps. - What is the power supply voltage for the ADM202EARUZ-REEL?
The device operates from a single 5 V power supply. - What level of ESD protection does the ADM202EARUZ-REEL offer?
The device offers ESD protection in excess of ±15 kV on all I/O lines. - Is the ADM202EARUZ-REEL compliant with EMC standards?
Yes, it is compliant with the EU directive on EMC and meets standards such as EN55022 and CISPR22. - What is the package type of the ADM202EARUZ-REEL?
The package type is 16-TSSOP. - What are the typical applications for the ADM202EARUZ-REEL?
It is used in general-purpose RS-232 data links, portable instruments, PDAs, and in electrically harsh environments. - Does the ADM202EARUZ-REEL have internal pull-down resistors?
Yes, it has internal 5 kΩ pull-down resistors on each RS-232 input. - What is the propagation delay for the transmitter and receiver?
The transmitter propagation delay is 1.0 to 1.5 µs, and the receiver propagation delay is 0.1 to 1 µs. - Is the ADM202EARUZ-REEL immune to radiated interference?
Yes, it has radiated immunity of 10 V/m (IEC1000-4-3). - What is the EFT protection level for the ADM202EARUZ-REEL?
The device offers EFT protection of ±2 kV (IEC1000-4-4).
