Overview
The ADM241LJR-REEL, produced by Analog Devices Inc., is a 5 V powered CMOS RS-232 driver/receiver integrated circuit. This component is part of the ADM231L–ADM234L/ADM236L–ADM241L family, designed to meet the EIA-232-E and V.28 specifications. It is particularly useful for solving interface problems in various electronic systems by providing a single 5 V supply solution for RS-232 communication.
Key Specifications
| Parameter | Rating/Value |
|---|---|
| Voltage Supply | 4.75 V to 5.25 V |
| Number of Drivers/Receivers | 4/5 |
| Data Rate | Up to 120 kbps |
| Output Swing | ±9 V with 5 V supply |
| Output Enable Time (TEN) | 250 ns (ADM236L, ADM239L, ADM241L) |
| Output Disable Time (TDIS) | 50 ns (ADM236L, ADM239L, ADM241L) |
| Propagation Delay | 0.3 µs |
| Transition Region Slew Rate | 8 V/µs (RL = 3 kΩ, CL = 2500 pF) |
| Output Resistance | 300 Ω (VCC = V+ = V– = 0 V, VOUT = ±2 V) |
| RS-232 Output Short-Circuit Current | ±10 mA |
| Package | 28-SSOP (0.209", 5.30mm Width) |
Key Features
- Single 5 V power supply
- Meets all EIA-232-E and V.28 specifications
- On-board dc-to-dc converters for ±9 V output swing
- Internal 400 kΩ pull-up resistors on TTL/CMOS inputs and 5 kΩ pull-down resistors on RS-232 inputs
- Active low enable input for receiver outputs (ADM236L, ADM239L, and ADM241L)
- High data rate up to 120 kbps
Applications
The ADM241LJR-REEL is suitable for a variety of applications requiring RS-232 communication, including:
- Industrial control systems
- Medical devices
- Point-of-sale terminals
- Computer peripherals
- Telecommunication equipment
Q & A
- What is the voltage supply range for the ADM241LJR-REEL? The voltage supply range is 4.75 V to 5.25 V.
- How many drivers and receivers does the ADM241LJR-REEL have? It has 4 drivers and 5 receivers.
- What is the maximum data rate supported by the ADM241LJR-REEL? The maximum data rate is up to 120 kbps.
- What is the output swing of the ADM241LJR-REEL with a 5 V supply? The output swing is ±9 V.
- What is the package type of the ADM241LJR-REEL? The package type is 28-SSOP (0.209", 5.30mm Width).
- Does the ADM241LJR-REEL meet EIA-232-E specifications? Yes, it meets all EIA-232-E and V.28 specifications.
- What is the propagation delay of the ADM241LJR-REEL? The propagation delay is 0.3 µs.
- Are there internal pull-up and pull-down resistors on the inputs? Yes, there are internal 400 kΩ pull-up resistors on TTL/CMOS inputs and 5 kΩ pull-down resistors on RS-232 inputs.
- How do you enable/disable the receiver outputs on the ADM241LJR-REEL? The receiver outputs can be enabled/disabled using the active low enable input (EN).
- What is the short-circuit current rating for the RS-232 outputs? The short-circuit current rating is ±10 mA.
