Overview
The ADM241LJRZ-REEL is a 5 V-powered CMOS RS-232 transceiver produced by Analog Devices, Inc. This component is part of the ADM231L–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 power supply solution for RS-232 communication.
The device features integrated step-up voltage converters that enable it to deliver the required ±9 V output swing from a single 5 V supply, making it highly efficient and compact. The ADM241LJRZ-REEL is packaged in a 28-lead SOIC (Small Outline Integrated Circuit) and is available in reel form, making it suitable for high-volume production and automated assembly processes.
Key Specifications
| Parameter | Rating/Description |
|---|---|
| Voltage - Supply | 4.75 V to 5.25 V |
| Number of Drivers/Receivers | 4/5 |
| Data Rate | 120 kbps |
| Operating Temperature | 0°C to 70°C (Commercial), -40°C to +85°C (Industrial) |
| Package/Case | 28-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
| Output Enable Time (TEN) | 250 ns |
| Output Disable Time (TDIS) | 50 ns |
| Propagation Delay | 0.3 µs |
| RS-232 Output Short-Circuit Current | ±10 mA |
Key Features
- Single 5 V Power Supply: Meets all EIA-232-E and V.28 specifications using a single digital 5 V supply.
- Integrated Step-Up Voltage Converters: Delivers ±9 V output swing from a single 5 V supply.
- High Data Rate: Supports data rates up to 120 kbps.
- Low Power Consumption: Efficient design for low power applications.
- Enable/Disable Functionality: Active low enable input for receiver outputs.
- Internal Pull-Up and Pull-Down Resistors: Internal 400 kΩ pull-up resistors on TTL/CMOS inputs and 5 kΩ pull-down resistors on RS-232 inputs.
- RoHS Compliant: Lead-free and compliant with RoHS standards.
Applications
- Industrial Automation: Used in control systems, data loggers, and other industrial automation equipment.
- Medical Devices: Suitable for medical equipment requiring reliable serial communication.
- Point of Sale (POS) Systems: Used in POS terminals and other retail systems.
- Embedded Systems: Ideal for embedded systems requiring serial communication interfaces.
- Telecommunications: Used in various telecommunications equipment for serial data transmission.
Q & A
- What is the voltage supply range for the ADM241LJRZ-REEL?
The voltage supply range is 4.75 V to 5.25 V.
- How many drivers and receivers does the ADM241LJRZ-REEL have?
The device has 4 drivers and 5 receivers.
- What is the maximum data rate supported by the ADM241LJRZ-REEL?
The maximum data rate is 120 kbps.
- What is the operating temperature range for the ADM241LJRZ-REEL?
The operating temperature range is 0°C to 70°C for commercial versions and -40°C to +85°C for industrial versions.
- What type of package does the ADM241LJRZ-REEL come in?
The device is packaged in a 28-lead SOIC (Small Outline Integrated Circuit).
- Is the ADM241LJRZ-REEL RoHS compliant?
Yes, the device is lead-free and RoHS compliant.
- What is the purpose of the enable input on the ADM241LJRZ-REEL?
The enable input is used to enable or disable the receiver outputs and is active low.
- What are the internal resistors on the TTL/CMOS inputs and RS-232 inputs?
There are internal 400 kΩ pull-up resistors on TTL/CMOS inputs and 5 kΩ pull-down resistors on RS-232 inputs.
- What is the propagation delay of the ADM241LJRZ-REEL?
The propagation delay is 0.3 µs.
- What is the RS-232 output short-circuit current of the ADM241LJRZ-REEL?
The RS-232 output short-circuit current is ±10 mA.
