Overview
The ADM242AR-REEL, produced by Analog Devices Inc., is part of the ADM222, ADM232A, and ADM242 family of high-speed RS-232 line drivers/receivers. These devices are designed to operate from a single 5 V power supply and offer transmission rates up to 200 kB/s. Fabricated using BiCMOS technology, which combines low power CMOS with high-speed bipolar circuitry, these devices minimize power consumption while maintaining high performance. The ADM242AR-REEL is particularly useful for applications requiring reliable and efficient RS-232 communication.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Transmission Rate | Up to 200 | kB/s |
| Power Supply Voltage | 5 | V |
| Quiescent Power Supply Current | Under 5 | mA |
| Transmitter Propagation Delay (TTL to RS-232) | 0.85 to 3.5 | µs |
| Receiver Propagation Delay (RS-232 to TTL) | 0.1 to 0.5 | µs |
| Transition Region Slew Rate | 3 to 30 | V/µs |
| Package Type | 18-Pin SOIC | |
| External Capacitors Required | Four 0.1 µF capacitors |
Key Features
- High-speed RS-232 transmission rates up to 200 kB/s
- Single 5 V power supply operation
- BiCMOS technology combining low power CMOS with high-speed bipolar circuitry
- Internal charge pump voltage doubler and voltage inverter generating ±10 V from the 5 V input
- Low quiescent power supply current under 5 mA
- Two RS-232 drivers and two RS-232 receivers per device
- Active low digital inputs for enabling/disabling the device (SHDN) and receiver outputs (EN on ADM242)
Applications
- Computers and peripherals
- Modems
- Printers
- Instruments and industrial equipment
Q & A
- What is the transmission rate of the ADM242AR-REEL?
The transmission rate of the ADM242AR-REEL is up to 200 kB/s.
- What is the power supply voltage requirement for the ADM242AR-REEL?
The device operates from a single 5 V power supply.
- How many RS-232 drivers and receivers are provided on the ADM242AR-REEL?
The device provides two RS-232 drivers and two RS-232 receivers.
- What technology is used in the fabrication of the ADM242AR-REEL?
The device is fabricated using BiCMOS technology, combining low power CMOS with high-speed bipolar circuitry.
- What is the quiescent power supply current of the ADM242AR-REEL?
The quiescent power supply current is under 5 mA.
- What external components are required for the ADM242AR-REEL?
Four external 0.1 µF capacitors are required for the internal charge pump voltage converter.
- What is the purpose of the SHDN and EN pins on the ADM242AR-REEL?
The SHDN pin is used to disable the device to minimize power consumption, and the EN pin (on ADM242) is used to enable or disable the receiver outputs.
- In what package type is the ADM242AR-REEL available?
The device is available in an 18-Pin SOIC package.
- What are some common applications of the ADM242AR-REEL?
Common applications include computers, peripherals, modems, printers, and instruments.
- Is the ADM242AR-REEL RoHS compliant?
No, the ADM242AR-REEL is not RoHS compliant.
