LTC1485CS8

IC TXRX DIFFERNTIAL BUS 8-SOIC

DESCRIPTION

The LTC® 1485 is a low power differential bus/line transceiver designed for multipoint data transmission standard RS485 applications with extended common-mode range 12V to – 7V. It also meets the requirements of RS422.

The CMOS with Schottky design offers significant power savings over its bipolar counterpart without sacrificing ruggedness against overload or ESD damage.

FEATURE

■ ESD Protection over ±10kV

■ Low Power: ICC= 1.8mA Typ

■ 28ns Typical Driver Propagation Delays with 4ns Skew

■ Designed for RS485 or RS422 Applications

■ Single 5V Supply

■ – 7V to 12V Bus Common-Mode Range Permits ±7V Ground Difference Between Devices on the Bus

■ Thermal Shutdown Protection

■ Power-Up/Down Glitch-Free Driver Outputs

■ Driver Maintains High Impedance in Three-State or with the Power Off

■ Combined Impedance of a Driver Output and Receiver Allows up to 32 Transceivers on the Bus

■ 60mV Typical Input Hysteresis

■ Pin Compatible with the SN75176A, DS75176A, and SN75LBC176