3.3V 20Mbps RS485/RS422 Transceivers
FEATURES
n 3.3V Supply Voltage n 20Mbps Maximum Data Rate n No Damage or Latchup Up to ±15kV HBM n High Input Impedance ...
Description
FEATURES
n 3.3V Supply Voltage n 20Mbps Maximum Data Rate n No Damage or Latchup Up to ±15kV 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 Common 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 Compatible 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 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 latchup or damage.
PART ...
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