ADM3222ARW

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Interface - Drivers, Receivers, Transceivers

The ADM3222ARW is an RS-232 line driver/receiver containing two driver and two receiver channels. It is fully compliant with the EIA/TIA-232-F interface standard, to support communication between any two devices that comply with the interface standard.

The ADM3222ARW has four channel pairs, so that it can support the transmission of high-speed serial data without the need for an additional device on the daisy-chained end of the serial bus. The direction of the transmission in each branch can also be controlled independently.

The ADM3222ARW also features a dedicated output enable line, which allows for more efficient communication across a serial bus. It also features adjustable output drive strength, adjustable input threshold levels and a selectable ESD protection circuit. In addition, it features a built-in noise filtering circuit, to further reduce crosstalk and reduce electromagnetic interference.

The ADM3222ARW is ideal for applications where low power dissipation is important and where a wide range of voltages is required to support different applications. It is also well suited for use in high speed, low power RS232 systems, where noise immunity is an important requirement.

Application Field

The ADM3222ARW is an excellent solution for all types of serial communication, including automotive applications, consumer electronics, communication systems, industrial automation, medical systems and network control controllers. It is also ideal for military systems and applications, where reliable, high-speed operation is required even in harsh environments.

It has been designed to support full-duplex communication between two nodes, such as a modem and a PC, or between two PCs, as well as for communication in a daisy-chain application, such as between a PC and a number of slave devices. It is also suitable for point-to-point applications, such as between a computer and a security system or an embedded controller.

Working Principle

The ADM3222ARW is based on a linear, fully differential, bi-directional RS-232 driver/receiver. It supports data transmission speeds of up to 10 Mbps and uses the RS-232 standard to ensure error-free data communication over long distances. The ADM3222ARW features a series regulator, designed to provide the regulated voltage needed for the circuit\'s operation without the need for external voltage level shifting.

The driver/receiver is designed to operate in a full-duplex, two-wire mode, with one wire for transmitting data and the other for receiving data. The driver/receiver has two output lines, one for transmitting data and one for receiving data. These output lines provide the signals necessary to drive the RS-232 cable. The driver/receiver is also capable of detecting and correcting any data loss due to signal attenuation or signal interference.

The receiver channel incorporates an adjustable input threshold, which can be adjusted to match the incoming signal’s amplitude and ensure error-free data communication. The receiver channel is also able to detect and reject spurious signals, preventing data transmission errors.

The driver channel also has adjustable output drive strength, enabling it to support data transmission speeds up to 10 Mbps without experiencing signal attenuation due to excessive drive strength. The driver channel is also able to detect and correct any data loss due to signal interference.

The ADM3222ARW also features a built-in noise filtering circuit, to reduce crosstalk and electromagnetic interference. It also features selectable ESD protection and adjustable input threshold levels. It also has an output enable line, which can be used to control the direction of transmission for more efficient communication across a serial bus.

Conclusion

The ADM3222ARW is a highly integrated, low power, bi-directional RS-232 driver/receiver with four independent channels, suitable for a wide range of applications. It is compliant with the EIA/TIA-232-F interface standard, has adjustable output drive strength and adjustable input threshold levels, and is capable of detecting and correcting errors due to signal interference. It also includes a built-in noise filtering circuit and selectable ESD protection, enabling it to provide reliable and error-free data communication even in harsh environments.

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