LTC2857C Datasheet - Linear Technology

DESCRIPTION
The LTC®2856-1, LTC2856-2, LTC2857-1, LTC2857-2, LTC2858-1 and LTC2858-2 are low power, RS485/RS422 transceivers operating on 5V supplies at maximum data rates of 20Mbps or 250kbps for low EMI. 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.

FEATURES
■ 20Mbps or Low EMI 250kbps Maximum Data Rate
■ No Damage or Latchup to ESD: ±15kV HBM
■ High Input Impedance Supports 256 Nodes
   (C, I-Grade)
■ Operation Up to 125°C (H-Grade)
■ Guaranteed Failsafe Receiver Operation Over the
   Entire Common Mode Range
■ Current Limited Drivers and Thermal Shutdown
■ Delayed Micropower Shutdown: 5μA Maximum
   (C, I-Grade)
■ Power Up/Down Glitch-Free Driver Outputs
■ Low Operating Current: 900μA Maximum in Receive
   Mode
■ Compatible with TIA/EIA-485-A Specifi cations
■ Available in 8-Lead and 10-Lead 3mm × 3mm DFN
   and 8-Lead and 10-Lead MSOP Packages

APPLICATIONS
■ Low Power RS485/RS422 Transceiver
■ Level Translator
■ Backplane Transceiver