ANALOG DEVICES LTC2856CMS8-1#PBF RS422/RS485 Transceiver, 20Mbps, Open, Short, 4.5 to 5.5V, 0°C to 70°C, MSOP-8

LTC2856CMS8-1#PBF is a low power, RS485/RS422 transceiver operating on 5V supplies. The receiver has a one-eighth unit load, supporting up to 256 nodes per bus, and a failsafe feature that guarantees a high output state under conditions of floating or shorted inputs. The driver maintains a high output impedance over the entire common mode range when disabled or when the supply is removed. Excessive power dissipation caused by bus contention or a fault is prevented by current limiting all outputs and by thermal shutdown. Enhanced ESD protection allows these parts to withstand ±15KV (human body model) on the transceiver interface pins without latch-up or damage. It is used in applications such as low-power RS485/RS422 transceiver, level translator, backplane transceiver.

• Current limited drivers and thermal shutdown
• Power up/down glitch-free driver outputs
• 20Mbps maximum data rate, half duplex
• Receiver input resistance is 125Kohm typical at (RE = VCC or 0V, DE = TE = 0V)
• Receiver input hysteresis is 25mV typical at (TA = 25°C. VCC = 5V)
• Supply current in shutdown mode is 5µA max at (TA = 25°C. VCC = 5V)
• Logic input current is ±10µA maximum at (TA = 25°C. VCC = 5V)
• Driver rise or fall time is 4ns typical at (RDIFF = 54 ohm, CL = 100pF)
• Operating temperature range from 0°C to 70°C
• 8-lead plastic MSOP package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party