Overview
The ADM232LANZ, produced by Analog Devices Inc., is a high-speed, 5 V, CMOS RS-232 driver/receiver. This device is part of the ADM2xx family and is designed to operate from a single 5 V power supply, making it suitable for applications where 12 V is not available. The ADM232LANZ integrates advanced BiCMOS technology, combining low power CMOS with high-speed bipolar circuitry, which enables transmission rates up to 200 kB/s while minimizing power dissipation.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Transmission Rate | Up to 200 kB/s | |
| Power Supply | Single 5 V | |
| Drivers/Receivers | 2 Drivers, 2 Receivers | |
| RS-232 Compliance | Meets EIA-232-E and V.28 specifications | |
| RS-232 Output Levels | ±10 V | |
| RS-232 Input Levels | ±30 V | |
| Charge Pump Capacitors | 4 external 0.1 µF capacitors | |
| Quiescent Power Supply Current | < 5 mA | |
| Shutdown Supply Current | 0.1 µA (ADM222), 0.1 mA (ADM242) | Varies by model |
| Package Options | 16-lead DIP, narrow and wide SOIC |
Key Features
- High-speed transmission rates up to 200 kB/s
- Single 5 V power supply with on-chip charge pump voltage converters
- Low power dissipation using CMOS technology
- Two RS-232 drivers and two RS-232 receivers on each device
- Internal 400 kΩ pull-up resistors on TTL/CMOS inputs and 5 kΩ pull-down resistors on RS-232 inputs
- Shutdown function to reduce power consumption (ADM222 and ADM242 models)
- Enable function to disable receiver outputs (ADM242 model)
- Pin-compatible with MAX222/MAX232A/MAX242
Applications
- Computers and peripherals
- Modems
- Printers
- Instruments
- Battery-powered equipment (especially models with low power shutdown)
Q & A
- What is the transmission rate of the ADM232LANZ?
The transmission rate of the ADM232LANZ is up to 200 kB/s.
- What type of power supply does the ADM232LANZ require?
The ADM232LANZ operates from a single 5 V power supply.
- How many drivers and receivers are included in the ADM232LANZ?
The device includes two RS-232 drivers and two RS-232 receivers.
- Does the ADM232LANZ meet RS-232 standards?
Yes, it meets EIA-232-E and V.28 specifications.
- What are the RS-232 output levels of the ADM232LANZ?
The RS-232 output levels are ±10 V.
- What is the quiescent power supply current of the ADM232LANZ?
The quiescent power supply current is less than 5 mA.
- Does the ADM232LANZ have a shutdown function?
Yes, the ADM222 and ADM242 models have a shutdown function to reduce power consumption.
- What are the package options for the ADM232LANZ?
The device is available in 16-lead DIP and both narrow and wide SOIC packages.
- Is the ADM232LANZ pin-compatible with other devices?
Yes, it is pin-compatible with MAX222/MAX232A/MAX242.
- What are some typical applications of the ADM232LANZ?
Typical applications include computers, peripherals, modems, printers, and instruments.
