Overview
The ADM232LARZ from Analog Devices Inc. is a high-speed RS-232 line driver/receiver integrated circuit. It is part of the ADM222/ADM232A/ADM242 family, known for their efficiency and high-speed transmission capabilities. This device operates from a single 5 V power supply and is designed to meet all EIA-232-E and V.28 specifications. The ADM232LARZ is fabricated using BiCMOS technology, combining low power CMOS with high-speed bipolar circuitry, which enables transmission rates up to 200 kB/s while minimizing power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply | 5 V | V |
| Data Rate | Up to 200 kB/s | kB/s |
| RS-232 Output Levels | ±10 V | V |
| Transmitter Propagation Delay (TTL to RS-232) | 0.85 to 3.5 µs | µs |
| Receiver Propagation Delay (RS-232 to TTL) | 0.1 to 0.5 µs | µs |
| Quiescent Power Supply Current | Under 5 mA | mA |
| Package Type | 16-SOIC |
Key Features
- High-speed RS-232 line driver/receiver with transmission rates up to 200 kB/s.
- Operates from a single 5 V power supply.
- Internal charge pump voltage converter generates ±10 V from the 5 V input.
- Four external 0.1 µF capacitors required for the internal charge pump voltage converter.
- Two RS-232 drivers and two RS-232 receivers.
- BiCMOS technology for low power consumption and high-speed performance.
- Enable and shutdown functions for power management.
Applications
- Computers and peripherals.
- Modems and printers.
- Industrial instruments and control systems.
- Automotive and industrial communication systems.
Q & A
- What is the maximum data rate of the ADM232LARZ?
The ADM232LARZ supports data rates up to 200 kB/s.
- What is the power supply requirement for the ADM232LARZ?
The device operates from a single 5 V power supply.
- How does the ADM232LARZ generate RS-232 bipolar levels?
The device uses an internal charge pump voltage converter to generate ±10 V from the 5 V input.
- What is the quiescent power supply current of the ADM232LARZ?
The quiescent power supply current is under 5 mA.
- What type of package is the ADM232LARZ available in?
The ADM232LARZ is available in a 16-SOIC package.
- What are the key applications of the ADM232LARZ?
The device is used in computers, peripherals, modems, printers, and industrial instruments.
- Does the ADM232LARZ have enable and shutdown functions?
Yes, the device includes enable and shutdown functions for power management.
- How many RS-232 drivers and receivers does the ADM232LARZ have?
The device has two RS-232 drivers and two RS-232 receivers.
- What technology is used in the fabrication of the ADM232LARZ?
The device is fabricated using BiCMOS technology.
- What are the external components required for the charge pump voltage converter?
Four external 0.1 µF capacitors are required.
