ADM1487E Series

5 V, ±15 kV ESD Protected, Half Duplex RS-485/RS-422 Transceiver (2.5 Mbps, ¼ Load)

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

5 V, ±15 kV ESD Protected, Half Duplex RS-485/RS-422 Transceiver (2.5 Mbps, ¼ Load)

Part	Operating Temperature (Min)	Operating Temperature (Max)	Number of Drivers	Number of Receivers	Mounting Type	Data Rate	Receiver Hysteresis	Package Length	Package Name	Package Width	Duplex	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Protocol	Type
Analog Devices Inc./Maxim Integrated ADM1487EARZ	-40 °C	85 °C	1	1	Surface Mount	2.5 MBd	70 mV	0.154 in	8-SOIC	3.9 mm	Half	5.25 V	4.75 V	RS422 RS485	Transceiver
Analog Devices Inc./Maxim Integrated ADM1487EARZ-REEL7	-40 °C	85 °C	1	1	Surface Mount	2.5 MBd	70 mV	0.154 in	8-SOIC	3.9 mm	Half	5.25 V	4.75 V	RS422 RS485	Transceiver

Catalog

5 V, ±15 kV ESD Protected, Half Duplex RS-485/RS-422 Transceiver (2.5 Mbps, ¼ Load)

Description

TheADM485E/ADM487E/ ADM1487E are 5 V low power data transceivers with ±15 kV ESD protection suitable for halfduplex communication on multipoint bus transmission lines. They are designed for balanced data transmission and comply with TIA/EIA standards RS-485 and RS-422. The ADM487E and the ADM1487E have a 1/4 unit load receiver input impedance that allows up to 128 transceivers on a bus, while the ADM485E allow up to 32 transceivers on a bus. Since only one driver is enabled at any time, the output of a disabled or powerdown driver is three-stated to avoid overloading the bus.The driver outputs are slew rate-limited in order to reduce EMI and data errors caused by reflections from improperly terminated buses. Excessive power dissipation caused by bus contention or output shorting is prevented with a thermal shutdown circuit. The parts are fully specified over the industrial temperature ranges and are available in 8-lead SOIC packages.APPLICATIONSEnergy/power meteringLighting systemsIndustrial controlTelecommunicationsSecurity systemsInstrumentation