Overview
The ADM202EARU-REEL7, produced by Analog Devices Inc., is a robust and high-speed RS-232/V.28 interface device. This component is part of the ADM202E series, designed to operate from a single 5 V power supply. It features a 2-channel RS-232 line driver/receiver pair, making it suitable for various applications requiring reliable and high-speed data transmission. The device is known for its compliance with EIA-232E and CCITT V.28 specifications, ensuring compatibility with a wide range of systems.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Power Supply Voltage (VCC) | 5 V ± 10% | |
| Data Rate | Up to 230 kbps | Maximum guaranteed data rate |
| ESD Protection | ±15 kV | Human body model and IEC1000-4-2 air discharge |
| EFT Protection | ±2 kV | IEC1000-4-4 fast transient/burst protection |
| EMI Immunity | 10 V/m | IEC1000-4-3 radiated immunity |
| Package Type | 16-lead SOIC, TSSOP | |
| Operating Temperature | −40°C to +85°C | |
| Transmitter Output Voltage | Typically ±9 V | When driving an RS-232 load with VCC = 5 V |
| Receiver Input Voltage Range | ±30 V | Continuous overvoltage protection |
| Power Dissipation | 10 mW | Typical power consumption |
Key Features
- High-Speed Operation: Supports data rates up to 230 kbps, ensuring high-speed data transmission.
- ESD and EFT Protection: Offers robust protection against electrostatic discharges (±15 kV) and electrical fast transients (±2 kV).
- EMI Compliance: Compliant with EU directive on electromagnetic compatibility, including low EMI emissions and high immunity to radiated and conducted interference.
- Efficient Power Management: Operates from a single 5 V power supply with low power consumption of 10 mW.
- Compact Packaging: Available in 16-lead SOIC and TSSOP packages, suitable for various application spaces.
- Internal Charge Pump: Generates ±10 V RS-232 output levels using a highly efficient on-chip charge pump design.
- Overvoltage Protection: Receiver inputs can withstand continuous voltages in excess of ±30 V.
Applications
- General-Purpose RS-232 Data Links: Suitable for various RS-232 communication needs in industrial and commercial environments.
- Portable Instruments and PDAs: Ideal for battery-powered devices due to low power consumption and compact packaging.
- Harsh Electrical Environments: Designed to operate in environments with frequent electrical transients and high RF field strengths.
- Upgrade for Legacy Devices: Can be used as an upgrade for MAX202E, 232E, and LT1181A devices).
Q & A
- What is the maximum data rate supported by the ADM202EARU-REEL7?
The ADM202EARU-REEL7 supports data rates up to 230 kbps.
- What type of ESD protection does the ADM202EARU-REEL7 offer?
The device offers ESD protection up to ±15 kV on all I/O lines.
- Is the ADM202EARU-REEL7 compliant with EMI standards?
Yes, it is compliant with EU directives on electromagnetic compatibility, including low EMI emissions and high immunity to radiated and conducted interference.
- What is the power supply voltage requirement for the ADM202EARU-REEL7?
The device operates from a single 5 V power supply with a tolerance of ±10%.
- What types of packages are available for the ADM202EARU-REEL7?
The device is available in 16-lead SOIC and TSSOP packages.
- How does the internal charge pump work in the ADM202EARU-REEL7?
The internal charge pump generates ±10 V RS-232 output levels from the 5 V input supply using a switched capacitor technique.
- What is the operating temperature range for the ADM202EARU-REEL7?
The device operates in the temperature range of −40°C to +85°C.
- Does the ADM202EARU-REEL7 have overvoltage protection?
Yes, the receiver inputs can withstand continuous voltages in excess of ±30 V.
- Is the ADM202EARU-REEL7 suitable for use in harsh electrical environments?
Yes, it is designed to operate in harsh electrical environments with frequent electrical transients and high RF field strengths.
- Can the ADM202EARU-REEL7 be used as an upgrade for other RS-232 devices?
Yes, it can be used as an upgrade for MAX202E, 232E, and LT1181A devices.
