The ADM3491ARUZ-1 is a low power Differential Line Transceiver designed to operate using a single 3.3V power supply. Low power consumption, coupled with a shutdown mode, makes it ideal for power-sensitive applications. It is suitable for communication on multipoint bus transmission lines. The ADM3491-1 is intended for balanced data transmission and complies with both Electronic Industries Association (EIA) standards RS-485 and RS-422. It contains a differential line driver and a differential line receiver, making it suitable for full-duplex data transfer. The input impedance is 19kR, allowing up to 50 transceivers to be connected on the bus. A thermal shutdown circuit prevents excessive power dissipation caused by bus contention or by output shorting. This feature forces the driver output into a high impedance state if a significant temperature increase is detected in the internal driver circuitry during fault conditions.
- EIA RS-422 and RS-485 compliant over full CM range
- 20Mbps Data rate
- Short-circuit protection
- Specified over full temperature range
- Thermal shutdown
- Interoperable with 5V logic
- 840μA Supply current
- 2nA Shutdown current
- 8ns Skew
- Upgrade for MAX3491, SN75ALS180
自动化与过程控制, 通信与网络
(EN)
