LMS1485

OBSOLETE LMS1485 www.ti.com SNOSA29E – MAY 2004 – REVISED OCTOBER 2011 LMS1485 5V Low Power RS-485 Differential Bus Transceiver Check for Samples: LMS1485 FEATURES 1 23 Meet ANSI standard RS-485-A and RS-422-B Data rate 30Mbps Single supply voltage operation, 5V Wide input and output voltage range Thermal shutdown protection Short circuit protection Driver propagation delay 10ns Receiver propagation delay 25ns High impedance outputs with power off Open circuit fail-safe for receiver Extended operating temperature range −40°C to 85°C ESD rating 8kV HBM Drop-in replacement to ADM1485 and LT1485 Available in 8-pin SOIC Low supply current, ICC = 1mA APPLICATIONS Low power RS-485 systems Network hubs, bridges, and routers Point of sales equipment (ATM, barcode scanners,…) Local area networks (LAN) Integrated service digital network (ISDN) Industrial programmable logic controllers High speed parallel and serial applications Multipoint applications with noisy environment DESCRIPTION The LMS1485 is a low power differential bus/line transceiver designed for high speed bidirectional data communication on multipoint bus transmission lines. It is designed for balanced transmission lines. It meets ANSI Standards TIA/EIA RS422-B, TIA/EIA RS485-A and ITU recommendation and V.11 and X.27. The LMS1485 combines a TRI-STATE™ differential line driver and differential input receiver, both of which operate from a single 5.0V power supply. The dri...