Overview
The ADM3222ARU, produced by Analog Devices Inc., is a dual transmitter/receiver RS-232 transceiver designed for low-power consumption and high-performance data transmission. This component is part of the ADM3202/ADM3222/ADM1385 family, which conforms to the EIA-232E and CCITT V.28 specifications. It operates from a single 3.3 V supply, making it ideal for battery-powered portable instruments and other applications where power efficiency is crucial. The ADM3222ARU features advanced circuitry, including a charge pump voltage converter, level-shifting transmitters, and receivers, allowing for RS-232 signal levels while maintaining low power dissipation through CMOS technology.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Type | Dual Transmitter/Receiver | RS-232 transceiver |
| Number of Drivers/Receivers | 2/2 | Two transmitters and two receivers |
| Protocol | RS-232 | Compliant with EIA-232E and CCITT V.28 specifications |
| Voltage - Supply | 3 V ~ 5.5 V | Single supply operation |
| Mounting Type | Surface Mount | |
| Package | 20-TSSOP | Thin Shrink Small Outline Package |
| Data Rate | Up to 460 kbps | High baud rate capability |
| Shutdown Current | < 0.5 μA | Low quiescent current in shutdown mode |
| Enable/Shutdown Circuitry | EN and SD inputs | Receiver enable and shutdown control |
Key Features
- Low Power Consumption: The ADM3222ARU is designed for low power consumption, making it suitable for battery-powered devices.
- Shutdown Facility: The component includes enable and shutdown circuitry, allowing the charge pump and transmitter outputs to be powered down, reducing quiescent current to less than 0.5 μA.
- High Baud Rate: Supports data transmission rates up to 460 kbps, making it suitable for high-speed data links and ISDN modem standards.
- CMOS Technology: Uses CMOS technology to minimize power dissipation and maximize battery life in portable applications.
- RS-232 Compliance: Conforms to EIA-232E and CCITT V.28 specifications, ensuring compatibility with RS-232 standards.
- Charge Pump Voltage Converter: Includes a charge pump voltage converter to generate RS-232 signal levels from a single 3.3 V supply).
Applications
- Battery-Powered Portable Instruments: Ideal for devices that require low power consumption and high data transmission rates).
- ISDN Modem Standards: Suitable for applications requiring data rates of up to 230 kbps, such as ISDN modem standards).
- High-Speed Data Links: Used in applications that require high-speed data transmission between terminals).
- Embedded Systems: Can be integrated into various embedded systems where RS-232 communication is necessary).
Q & A
- What is the primary function of the ADM3222ARU?
The ADM3222ARU is a dual transmitter/receiver RS-232 transceiver designed for low-power consumption and high-performance data transmission.
- What are the key specifications of the ADM3222ARU?
It includes two transmitters and two receivers, operates from a single 3.3 V to 5.5 V supply, and supports data rates up to 460 kbps.
- What type of package is the ADM3222ARU available in?
The ADM3222ARU is available in a 20-TSSOP (Thin Shrink Small Outline Package) package.
- How does the shutdown facility work in the ADM3222ARU?
The shutdown facility allows the charge pump and transmitter outputs to be powered down using the SD input, reducing the quiescent current to less than 0.5 μA.
- What is the maximum data rate supported by the ADM3222ARU?
The ADM3222ARU supports data transmission rates up to 460 kbps.
- Is the ADM3222ARU compliant with industry standards?
Yes, it conforms to the EIA-232E and CCITT V.28 specifications.
- What technology is used in the ADM3222ARU to minimize power dissipation?
The ADM3222ARU uses CMOS technology to minimize power dissipation.
- Can the ADM3222ARU be used in battery-powered devices?
Yes, it is ideal for battery-powered portable instruments due to its low power consumption.
- How does the charge pump voltage converter work in the ADM3222ARU?
The charge pump voltage converter generates RS-232 signal levels from a single 3.3 V supply using external capacitors.
- What are some common applications of the ADM3222ARU?
Common applications include battery-powered portable instruments, ISDN modem standards, and high-speed data links.
