ADM232AAN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Level Translator
• Characteristics: High-speed, low-power, dual-channel RS-232 driver/receiver
• Package: DIP (Dual In-line Package)
• Essence: ADM232AAN is a voltage level translator IC designed for bidirectional communication between RS-232 and TTL/CMOS logic levels.
• Packaging/Quantity: Available in tubes of 25 units or reels of 1000 units.

Specifications

• Supply Voltage: +5V
• Data Rate: Up to 120 kbps
• Operating Temperature Range: -40°C to +85°C
• Number of Channels: 2 (dual-channel)
• Input Logic Levels: TTL/CMOS compatible
• Output Logic Levels: RS-232 compliant
• Package Type: DIP-16

Pin Configuration

The ADM232AAN IC has a total of 16 pins. The pin configuration is as follows:

1. V+ (Positive Supply Voltage)
2. V- (Negative Supply Voltage)
3. GND (Ground)
4. T1IN (Channel 1 Transmit Data Input)
5. R1OUT (Channel 1 Receive Data Output)
6. T1OUT (Channel 1 Transmit Data Output)
7. R1IN (Channel 1 Receive Data Input)
8. T2IN (Channel 2 Transmit Data Input)
9. R2OUT (Channel 2 Receive Data Output)
10. T2OUT (Channel 2 Transmit Data Output)
11. R2IN (Channel 2 Receive Data Input)
12. C1- (Channel 1 Capacitor Negative Terminal)
13. C1+ (Channel 1 Capacitor Positive Terminal)
14. C2- (Channel 2 Capacitor Negative Terminal)
15. C2+ (Channel 2 Capacitor Positive Terminal)
16. VCC (Positive Supply Voltage)

Functional Features

• Bidirectional voltage level translation between RS-232 and TTL/CMOS logic levels.
• Supports data rates up to 120 kbps.
• Low power consumption.
• ESD protection on all pins.
• Suitable for battery-powered applications.

Advantages

• High-speed communication between RS-232 and TTL/CMOS devices.
• Easy integration due to its DIP package.
• Wide operating temperature range allows usage in various environments.
• Provides reliable bidirectional data transmission.

Disadvantages

• Limited to dual-channel communication.
• Requires external capacitors for proper operation.
• Not suitable for high-speed applications exceeding 120 kbps.

Working Principles

The ADM232AAN IC utilizes charge pumps to generate the required RS-232 voltage levels from a single +5V supply. It employs internal voltage doublers and inverters to achieve the necessary voltage translation. The device also incorporates ESD protection circuitry to safeguard against electrostatic discharge events.

Application Field Plans

The ADM232AAN is commonly used in various applications, including:

1. Industrial automation systems
2. Data communication equipment
3. Point-of-sale terminals
4. Networking devices
5. Medical equipment
6. Test and measurement instruments

Alternative Models

Here are some alternative models that can be considered as replacements for ADM232AAN:

1. MAX232 - Maxim Integrated
2. SP232 - Exar Corporation
3. ST232 - STMicroelectronics
4. LTC232 - Linear Technology

These alternatives offer similar functionality and can be used as drop-in replacements for ADM232AAN in most applications.

In conclusion, the ADM232AAN is a versatile voltage level translator IC that enables seamless communication between RS-232 and TTL/CMOS logic levels. Its high-speed operation, low power consumption, and wide operating temperature range make it suitable for a variety of applications in different industries.

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