Analog Devices ADM3491 Manuals

The ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 are 3.3V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers from Analog Devices. They are compatible with 5V logic, meet EIA RS-422 and RS-485 standards, support data rates of 250kbps and 10Mbps, support half-duplex and full-duplex modes, and have low EMI and low power consumption. They are suitable for low-power RS-485/RS-422 applications such as telecommunications, industrial process control, and HVAC.

This document is the datasheet of ADM3491. ADM3491 is a low power differential line transceiver designed to operate using a single +3.3 V power supply. Low power consumption coupled with a shutdown mode make it ideal for portable devices.

The ADM3491 is a low power differential line transceiver designed to operate using a single +3.3V power supply. Low power consumption and a shutdown mode make it ideal for battery powered or other applications with limited power supplies.

This document describes the features of ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 3.3V slew rate limited, half- and full-duplex RS-485/RS-422 transceivers. These transceivers are interoperable with 5V logic, compliant with EIA RS-422 and RS-485 standards over full common-mode range, offer multiple data rate options, reduced slew rates for low EMI, low power shutdown mode, support up to 32 transceivers on the bus, and more. They are suitable for low power RS-485/RS-422 applications, telecom, industrial process control, HVAC, and other fields.

ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 are low power, 3.3V supply RS-485/RS-422 transceivers that are interoperable with 5V logic and compliant with EIA RS-422 and RS-485 standards over the full common-mode range. The products offer multiple data rate options and support both half-duplex and full-duplex modes. ADM3483 and ADM3488 have reduced slew rates for low electromagnetic interference. In shutdown mode, ADM3483/ADM3485/ADM3491 have a supply current of only 2nA. Up to 32 transceivers can be supported on the bus, with a bus common-mode range of -7V to +12V. The products are suitable for low power RS-485/RS-422 applications such as telecom, industrial process control, and HVAC.