LTC1322ISW#TR

The LTC1322ISW#TR is a versatile, low-power CMOS bidirectional transceiver manufactured by LT. It features two reconfigurable interface ports that can be configured as two RS485 differential ports, two single-ended ports, or one of each. The device supports RS232 or EIA562 compatible single-ended outputs and operates at up to 120kbaud in these modes.

For RS485 and RS422 communication, the transceivers operate at up to 10Mbaud and are in full compliance with respective specifications. All interface drivers include short-circuit and thermal shutdown protection. The driver outputs can be forced into a high-impedance state via an enable pin, which is maintained even when outputs are forced beyond supply rails or power is off. Both driver outputs and receiver inputs feature ±10kV ESD protection. A loopback mode is available for diagnostic self-testing.

The LTC1322ISW#TR supports RS232 voltage levels when VDD is between 6.5V and 10V, and VEE is between -6.5V and -10V. It has a typical supply current of 1mA, which reduces to 15µA in shutdown mode. The device is suitable for applications such as low power RS485/RS422/EIA562/RS232 interfaces, cable repeaters, and level translators.