ADM3222ARWZ-REEL7

Product Overview

Category

ADM3222ARWZ-REEL7 belongs to the category of integrated circuits (ICs) and specifically falls under the category of RS-232 Interface ICs.

Use

This product is commonly used for serial communication applications, particularly for converting logic level signals to RS-232 voltage levels and vice versa. It enables reliable data transmission between devices that operate at different voltage levels.

Characteristics

• Voltage Supply: 3 V to 5.5 V
• Data Rate: Up to 1 Mbps
• Number of Channels: 2
• Package Type: WSOIC (Wide Small Outline Integrated Circuit)
• Operating Temperature Range: -40°C to +85°C

Package and Quantity

ADM3222ARWZ-REEL7 is available in a WSOIC package, which provides a compact form factor suitable for space-constrained designs. It is typically supplied in reels containing a specific quantity, usually around 2500 units per reel.

Specifications

• Supply Voltage Range: 3 V to 5.5 V
• Logic Input High Voltage (VIH): 2 V to VDD + 0.3 V
• Logic Input Low Voltage (VIL): -0.3 V to 0.8 V
• Operating Temperature Range: -40°C to +85°C
• Data Rate: Up to 1 Mbps
• Number of Channels: 2
• ESD Protection: ±15 kV (Human Body Model)

Pin Configuration

The ADM3222ARWZ-REEL7 has a total of 20 pins, which are assigned as follows:

1. VCC1: Positive power supply for Channel 1
2. RIN1: Receiver input for Channel 1
3. TOUT1: Transmitter output for Channel 1
4. GND1: Ground for Channel 1
5. VCC2: Positive power supply for Channel 2
6. RIN2: Receiver input for Channel 2
7. TOUT2: Transmitter output for Channel 2
8. GND2: Ground for Channel 2
9. C1-: Capacitor connection for Channel 1
10. C1+: Capacitor connection for Channel 1
11. NC: No Connection
12. C2-: Capacitor connection for Channel 2
13. C2+: Capacitor connection for Channel 2
14. SHDN: Shutdown control input
15. GND: Ground
16. TOUT: Transmitter output (combined)
17. RIN: Receiver input (combined)
18. VCC: Positive power supply
19. VCC3: Positive power supply for charge pump
20. GND3: Ground for charge pump

Functional Features

• Logic Level Conversion: The ADM3222ARWZ-REEL7 provides bidirectional voltage level conversion between logic levels and RS-232 voltage levels, allowing seamless communication between devices operating at different voltage levels.
• ESD Protection: With ±15 kV ESD protection (Human Body Model), this IC offers robust protection against electrostatic discharge events, ensuring the reliability of the connected devices.
• Low Power Consumption: The ADM3222ARWZ-REEL7 is designed to minimize power consumption, making it suitable for battery-powered applications or energy-efficient designs.
• Shutdown Mode: The SHDN pin allows the device to be put into a low-power shutdown mode, reducing power consumption when not in use.

Advantages and Disadvantages

Advantages

• Wide voltage supply range enables compatibility with various systems.
• High data rate capability supports fast serial communication.
• Compact package size allows for space-efficient designs.
• ESD protection ensures device reliability in harsh environments.
• Low power consumption extends battery life in portable applications.

Disadvantages

• Limited to RS-232 interface compatibility, not suitable for other serial communication standards.
• May require additional external components (capacitors) for proper operation.

Working Principles

The ADM3222ARWZ-REEL7 utilizes a charge pump architecture to generate the required RS-232 voltage levels. It converts the logic level signals from the connected devices into RS-232 compliant voltage levels, allowing reliable data transmission over longer distances. The device incorporates internal circuitry for level shifting, amplification, and filtering to ensure accurate signal conversion.

Detailed Application Field Plans

The ADM3222ARWZ-REEL7 finds application in various fields, including but not limited to: - Industrial automation systems - Networking equipment - Point-of-sale terminals - Medical devices - Test and measurement instruments - Consumer electronics

Alternative Models

Here are some alternative models that offer similar functionality to the ADM3222ARWZ-REEL7: