ADM202JRW

Product Overview

Category: Integrated Circuit (IC)

Use: The ADM202JRW is a dual-channel RS-232 line driver/receiver IC. It is designed to interface between TTL logic and RS-232 signals, providing reliable communication between devices operating at different voltage levels.

Characteristics: - Dual-channel RS-232 line driver/receiver - TTL logic to RS-232 signal conversion - Supports data rates up to 120 kbps - Low power consumption - Wide supply voltage range: 4.5V to 5.5V - ESD protection for robust operation

Package: The ADM202JRW is available in a small outline integrated circuit (SOIC) package.

Essence: The essence of the ADM202JRW lies in its ability to facilitate communication between devices using different voltage levels, ensuring compatibility and reliable data transmission.

Packaging/Quantity: The ADM202JRW is typically sold in reels containing a quantity of 250 units.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Data Rate: Up to 120 kbps
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOIC-16

Pin Configuration

The ADM202JRW features a 16-pin configuration with the following pin assignments:

1. VCC1: Positive power supply for Channel 1
2. RIN1: Receiver input for Channel 1
3. ROUT1: Driver output for Channel 1
4. GND1: Ground for Channel 1
5. GND: Common ground
6. ROUT2: Driver output for Channel 2
7. RIN2: Receiver input for Channel 2
8. VCC2: Positive power supply for Channel 2
9. C1-: External capacitor connection for Channel 1
10. C1+: External capacitor connection for Channel 1
11. C2-: External capacitor connection for Channel 2
12. C2+: External capacitor connection for Channel 2
13. VCC3: Positive power supply for charge pump
14. V-: Negative voltage output of charge pump
15. V+ : Positive voltage output of charge pump
16. GND2: Ground for Channel 2 and charge pump

Functional Features

The ADM202JRW offers the following functional features:

• TTL to RS-232 signal conversion
• Dual-channel operation for simultaneous communication
• ESD protection for enhanced reliability
• Low power consumption for energy efficiency
• Wide supply voltage range for flexibility in various applications

Advantages and Disadvantages

Advantages: - Reliable interface between TTL logic and RS-232 signals - Supports high data rates up to 120 kbps - Robust ESD protection ensures reliable operation - Low power consumption extends battery life in portable devices

Disadvantages: - Limited to dual-channel operation - Requires external capacitors for proper functionality

Working Principles

The ADM202JRW utilizes a charge pump to generate the required RS-232 voltage levels from the lower TTL logic levels. The charge pump generates positive and negative voltages, which are used to drive the RS-232 signals. The receiver section converts the RS-232 signals back to TTL logic levels.

Application Field Plans

The ADM202JRW finds application in various fields where communication between devices operating at different voltage levels is required. Some potential application areas include: - Industrial automation - Telecommunications - Networking equipment - Medical devices - Consumer electronics

Alternative Models

For those seeking alternatives to the ADM202JRW, the following models can be considered: - MAX202E: Dual RS-232 line driver/receiver IC - SP202E: Dual RS-232 transceiver IC - LTC1387: Dual RS-232 transceiver with shutdown mode

These alternative models offer similar functionality and can be suitable replacements for the ADM202JRW in various applications.

In conclusion, the ADM202JRW is a dual-channel RS-232 line driver/receiver IC that enables communication between devices operating at different voltage levels. With its reliable performance, low power consumption, and wide supply voltage range, it finds application in diverse fields such as industrial automation, telecommunications, and consumer electronics.