1. Products
  2. Interface and Isolation
  3. RS-232 / RS-422 / RS-485 / RS-562
  4. RS-485 and RS-422
  5. LTC2852


Overview

Features and Benefits

  • 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

Product Details

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.

Applications

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

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Tools & Simulations

IBIS Models

Product Recommendations

LTC2852 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
LTC2852CDD#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
LTC2852CDD#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
LTC2852CMS#PBF Material Declaration Reliability Data 10-Lead MSOP
LTC2852CMS#TRPBF Material Declaration Reliability Data 10-Lead MSOP
LTC2852CS#PBF Material Declaration Reliability Data 14-Lead SOIC (Narrow 0.15 Inch)
LTC2852CS#TRPBF Material Declaration Reliability Data 14-Lead SOIC (Narrow 0.15 Inch)
LTC2852HDD#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
LTC2852HDD#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
LTC2852HMS#PBF Material Declaration Reliability Data 10-Lead MSOP
LTC2852HMS#TRPBF Material Declaration Reliability Data 10-Lead MSOP
LTC2852HS#PBF Material Declaration Reliability Data 14-Lead SOIC (Narrow 0.15 Inch)
LTC2852HS#TRPBF Material Declaration Reliability Data 14-Lead SOIC (Narrow 0.15 Inch)
LTC2852IDD#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
LTC2852IDD#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
LTC2852IMS#PBF Material Declaration Reliability Data 10-Lead MSOP
LTC2852IMS#TRPBF Material Declaration Reliability Data 10-Lead MSOP
LTC2852IS#PBF Material Declaration Reliability Data 14-Lead SOIC (Narrow 0.15 Inch)
LTC2852IS#TRPBF Material Declaration Reliability Data 14-Lead SOIC (Narrow 0.15 Inch)
LTC2852MPDD#PBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
LTC2852MPDD#TRPBF Material Declaration Reliability Data 10-Lead DFN (3mm x 3mm w/ EP)
LTC2852MPMS#PBF Material Declaration Reliability Data 10-Lead MSOP
LTC2852MPMS#TRPBF Material Declaration Reliability Data 10-Lead MSOP
LTC2852MPS#PBF Material Declaration Reliability Data 14-Lead SOIC (Narrow 0.15 Inch)
LTC2852MPS#TRPBF Material Declaration Reliability Data 14-Lead SOIC (Narrow 0.15 Inch)
Wafer Fabrication Data R521 Reliability Data

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Sample & Buy


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Lead Times


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Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.