Overview
The MAX232AMLP, produced by Analog Devices Inc./Maxim Integrated, is a +5V-powered, multichannel RS-232 driver/receiver integrated circuit. This component is part of the MAX220–MAX249 family, designed for EIA/TIA-232E and V.28/V.24 communications interfaces. It is particularly useful in applications where ±12V supplies are not available. The MAX232AMLP features integrated charge pump circuitry, which eliminates the need for a bipolar ±12V supply, enabling single supply operation from a +5V supply. This makes it ideal for space-constrained and power-efficient designs.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Supply Voltage | +5V |
| Number of Drivers/Receivers | 2/2 |
| External Capacitors | 4 (0.1µF each) |
| Data Rate | Up to 120 kbps |
| Shutdown Mode Current | 5µW |
| Operating Temperature Range | 0°C to +70°C (up to -55°C to +125°C for some packages) |
| Package Type | 20-TSSOP |
Key Features
- Saves board space with integrated charge pump circuitry.
- Eliminates the need for a bipolar ±12V supply, enabling single supply operation from +5V.
- Ultra-low power consumption with 5µW shutdown mode.
- Industry-standard pinout for easy integration.
- Available in various package options with different temperature ranges.
Applications
- Interface translation and multidrop RS-232 networks.
- Portable diagnostics equipment.
- Automotive interfaces (e.g., CAN, audio, Ethernet).
- Industrial I/O and other serial communication applications where space and power efficiency are critical.
Q & A
- What is the primary function of the MAX232AMLP? The MAX232AMLP is a +5V-powered, multichannel RS-232 driver/receiver IC.
- What is the significance of the integrated charge pump circuitry? It eliminates the need for a bipolar ±12V supply, allowing single supply operation from +5V.
- What is the typical data rate supported by the MAX232AMLP? Up to 120 kbps.
- What is the power consumption in shutdown mode? 5µW.
- What are the common applications of the MAX232AMLP? Interface translation, multidrop RS-232 networks, and portable diagnostics equipment.
- What is the operating temperature range for the MAX232AMLP? 0°C to +70°C (and up to -55°C to +125°C for some packages).
- What package type is the MAX232AMLP available in? 20-TSSOP.
- Does the MAX232AMLP require external capacitors? Yes, it requires four 0.1µF external capacitors.
- Is the MAX232AMLP suitable for automotive applications? Yes, it can be used in various automotive interfaces such as CAN, audio, and Ethernet.
- What is the significance of the ultra-low power shutdown mode? It reduces power requirements, making it suitable for battery-powered and power-sensitive applications.
