Product Details
●The ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 are low power, differential line transceivers designed to operate using a single 3.3 V power supply. Low power consumption, coupled with a shutdown mode, makes the ADM3483/ADM3485/ADM3488/ ADM3490/ADM3491 ideal for power-sensitive applications.
●The ADM3488/ADM3490/ADM3491 feature full-duplex com-munication, while the ADM3483/ADM3485 are designed for half-duplex communication.
●The ADM3483/ADM3488 feature slew rate limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250 kbps.
●The ADM3485/ADM3490/ADM3491 transmit at up to 10 Mbps. The receiver input impedance is 12 kΩ, allowing up to 32 trans-ceivers to be connected on the bus. A thermal shutdown circuit prevents excessive power dissipation caused by bus contention or by output shorting. If a significant temperature increase is detected in the internal driver circuitry during fault conditions, then the thermal shutdown circuit forces the driver output into a high impedance state. If the inputs are unconnected (floating), the receiver contains a fail-safe feature that results in a logic high output state. The parts are fully specified over the commercial and industrial temperature ranges. The ADM3483/ADM3485/ ADM3488/ADM3490 are available in 8-lead SOIC_N; the ADM3491 is available in a 14-lead SOIC_N.
●Applications
● Low-Power RS-485/RS-422 Applications
● Telecom
● Industrial Process Control
● HVAC
●### Features and Benefits
● Operate with 3.3 V supply
● Interoperable with 5 V logic
● EIA RS-485/RS-422 Compliant over Full Common-mode Range
● Data Rate Options:250kbps
● Half and Full Duplex Options
● Reduced Slew Rates for Low EMI
● 2nA Supply Current in Shutdown Mode
● Up to 32 Transceivers on a Bus
● -7V to +12V Bus Common Mode Range
● Specified over –40°C to +85°C Temperature Range
● Available in 8-Lead SOIC
