LTC2850 - 3.3V 20Mbps RS485/RS422 Transceiver

Features

  • 3.3V Supply Voltage
  • 20Mbps Maximum Data Rate
  • No Damage or Latchup Up to ±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: 370μA Typical in Receive Mode
  • Compatible with TIA/EIA-485-A Specifications
  • Available in 8-Pin and 10-Pin 3mm × 3mm DFN, 8-Pin and 10-Pin MSOP, and 8-Pin and 14-Pin SO Packages

Typical Application

LTC2850 Typical Application
LTC2850 Typical Application

Description

The LTC2850, 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.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

DFN-8, MS-8, SO-8

LTC2850 Package Drawing
LTC2850 Package Drawing
LTC2850 Package Drawing
LTC2850 Package Drawing
LTC2850 Package Drawing
LTC2850 Package Drawing
LTC2850 Package Drawing
LTC2850 Package Drawing
LTC2850 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC2850CDD#PBF DFN 8 C $2.07 $1.45 View
LTC2850CDD#TRPBF DFN 8 C $1.51 View
LTC2850CMS8#PBF MSOP 8 C $2.07 $1.45 View
LTC2850CMS8#TRPBF MSOP 8 C $1.51 View
LTC2850CS8#PBF SO 8 C $2.07 $1.45 View
LTC2850CS8#TRPBF SO 8 C $1.51 View
LTC2850HDD#PBF DFN 8 H $2.80 $1.91 View
LTC2850HDD#TRPBF DFN 8 H $1.97 View
LTC2850HMS8#PBF MSOP 8 H $2.80 $1.91 View
LTC2850HMS8#TRPBF MSOP 8 H $1.97 View
LTC2850HS8#PBF SO 8 H $2.80 $1.91 View
LTC2850HS8#TRPBF SO 8 H $1.97 View
LTC2850IDD#PBF DFN 8 I $2.48 $1.74 View
LTC2850IDD#TRPBF DFN 8 I $1.80 View
LTC2850IMS8#PBF MSOP 8 I $2.48 $1.74 View
LTC2850IMS8#TRPBF MSOP 8 I $1.80 View
LTC2850IS8#PBF SO 8 I $2.48 $1.74 View
LTC2850IS8#TRPBF SO 8 I $1.80 View
LTC2850MPDD DFN 8 MP $6.21 $4.35 View
LTC2850MPDD#PBF DFN 8 MP $6.21 $4.35 View
LTC2850MPDD#TRPBF DFN 8 MP $4.41 View
LTC2850MPMS8 MSOP 8 MP $6.21 $4.35 View
LTC2850MPMS8#PBF MSOP 8 MP $6.21 $4.35 View
LTC2850MPMS8#TRPBF MSOP 8 MP $4.41 View
LTC2850MPS8 SO 8 MP $6.21 $4.35 View
LTC2850MPS8#PBF SO 8 MP $6.21 $4.35 View
LTC2850MPS8#TRPBF SO 8 MP $4.41 View
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

  • Low Power RS485/RS422 Transceiver
  • Level Translator
  • Backplane Transceiver

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