LTC2850 Datasheet | Linear Technology

Features n 3.3V Supply Voltage n 20Mbps Maximum Data Rate n No Damage or Latchup Up to ±15k V HBM n High Input Impedance Supports 256 Nodes (C-, I‑Grade) n Operation Up to 125°C (H-Grade) n Guaranteed Failsafe Receiver Operation Over the Entire mon Mode Range n Current Limited Drivers and Thermal Shutdown n Delayed Micropower Shutdown: 5µA Maximum (C-, I-Grade) n Power Up/Down Glitch-Free Driver Outputs n Low Operating Current: 370µA Typical in Receive Mode n patible with TIA/EIA-485-A Specifications n Available in 8-Pin and 10-Pin 3mm × 3mm DFN, 8-Pin and 10-Pin MSOP, and 8-Pin and 14-Pin SO Packages APPLICATIONS n Low Power RS485/RS422 Transceiver n Level Translator n Backplane Transceiver LTC2850/LTC2851/LTC2852 3.3V 20Mbps RS485/RS422 Transceivers DESCRIPTION The LTC®2850, LTC2851 and LTC2852 are low power, 20Mbps RS485/RS422 transceivers 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 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 mon 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 ±15k V (human body model) on the transceiver interface pins without latchup or damage. PART NUMBER LTC2850 LTC2851 LTC2852 DUPLEX Half Full Full PACKAGE SO-8, MSOP-8, DFN-8 SO-8, MSOP-8, DFN-8 SO-14, MSOP-10, DFN-10 L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION RO1 R RE1 DE1 DI1 VCC1 RT GND1 RO2 R RE2 RT VCC2 DE2 DI2 GND2...