LTC2850IMS8#PBF Datasheet PDF - Linear Technology

The LTC2850IMS8#PBF is a low power 20Mbps RS485/RS422 Transceiver operating on 3.3V supplies. The receiver has a one-eighth unit load supporting up to 256 nodes per bus (C, I-grade) and a fail-safe 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 up to ±15kV (human body model) on the transceiver interface pins without latch up or damage.

● 3.3V Supply voltage

● 20Mbps Maximum data rate

● No damage or latch-up up to ±15kV HBM

● High input impedance supports 256 nodes (C, I-grade)

● Operation up to 125°C (H-grade)

● Guaranteed fail-safe receiver operation over the entire common mode range

● Current limited drivers and thermal shutdown

● Delayed micro power shutdown (5µA maximum, C, I-Grade)

● Power up/down glitch-free driver outputs

● Low operating current (370µA typical in receive mode)

● Compatible with TIA/EIA-485-A specifications