Overview
The ADM232AARNZ-REEL7, produced by Analog Devices Inc., is a high-speed RS-232 line driver/receiver. This device is part of the ADM222, ADM232A, and ADM242 family, which offers transmission rates up to 200 kB/s. Fabricated using BiCMOS technology, it combines low power CMOS with high-speed bipolar circuitry, enabling efficient and high-speed data transmission. The ADM232A operates from a single 5 V power supply and utilizes an on-chip charge pump to generate the necessary RS-232 bipolar levels using small external capacitors (0.1 µF).
Key Specifications
| Specification | Value |
|---|---|
| Transmission Rate | Up to 200 kB/s |
| Power Supply | Single 5 V |
| Number of Drivers/Receivers | 2 Drivers, 2 Receivers |
| Output Voltage Swing | ±9 V (loaded with 3 kΩ to ground) |
| Receiver Input Level | ±30 V |
| Transition Region Slew Rate | 8 V/µs (typical, CL = 50 pF to 1000 pF, RL = 3 kΩ to 7 kΩ) |
| Power Supply Current | 4 mA (typical, no load) |
| Shutdown Power Supply Current | 0.1 µA (typical) |
| Operating Temperature Range | -40°C to +85°C |
| Package Style | 16-lead SOIC-N |
Key Features
- High-speed transmission rates up to 200 kB/s
- Single 5 V power supply with on-chip charge pump using small (0.1 µF) external capacitors
- BiCMOS technology combining low power CMOS with high-speed bipolar circuitry
- Pin-compatible with MAX222/MAX232A/MAX242
- Internal charge pump voltage doubler and inverter generating ±10 V from 5 V input
- Low power consumption with quiescent current under 5 mA
- Shutdown function to minimize power consumption (ADM222 and ADM242)
- Enable function for receiver outputs (ADM242)
Applications
- Computers
- Peripherals
- Modems
- Printers
- Instruments
Q & A
- What is the transmission rate of the ADM232A?
The transmission rate of the ADM232A is up to 200 kB/s.
- What power supply does the ADM232A require?
The ADM232A operates from a single 5 V power supply.
- How many RS-232 drivers and receivers does the ADM232A have?
The ADM232A has two RS-232 drivers and two RS-232 receivers.
- What is the output voltage swing of the ADM232A?
The output voltage swing of the ADM232A is ±9 V when loaded with 3 kΩ to ground.
- What is the receiver input level of the ADM232A?
The receiver input level of the ADM232A is ±30 V.
- What is the typical power supply current of the ADM232A?
The typical power supply current of the ADM232A is 4 mA at no load.
- What is the shutdown power supply current of the ADM232A?
The shutdown power supply current of the ADM232A is typically 0.1 µA.
- What is the operating temperature range of the ADM232A?
The operating temperature range of the ADM232A is -40°C to +85°C.
- In what package style is the ADM232A available?
The ADM232A is available in a 16-lead SOIC-N package.
- Is the ADM232A pin-compatible with other devices?
Yes, the ADM232A is pin-compatible with MAX222/MAX232A/MAX242.
