LTC2877 - ±60V Rugged PROFIBUS RS485 Transceivers

Features

  • PROFIBUS IEC 61158-2 Compliant
  • Protected from Overvoltage Line Faults to ±60V
  • ±52kV ESD Interface Pins, ±15kV All Other Pins
  • ±2kV (Level 4) IEC61000-4-4 Fast Transient Burst
  • ±25V Working Common Mode Range
  • 20Mbps Maximum Baud Rate
  • 1.65V to 5.5V Logic Supply Pin for Flexible Digital Interfacing (LTC2877)
  • 5V Supply Can Operate Down to 3V for Low Power, Low Swing Applications
  • Fully Balanced Differential Receiver Thresholds with
  • 240mV Hysteresis for Superior Noise Tolerance and
  • Low Duty Cycle Distortion
  • Receiver Failsafe for Open, Shorted and Terminated Conditions
  • Wide Operating Temperature Range: –40°C to 125°C
  • Available in Small DFN and MSOP Packages

Typical Application

LTC2877 Typical Application
LTC2877 Typical Application

Description

The LTC®2876 and LTC2877 are PROFIBUS RS485 transceivers designed to meet the test specifications for PROFIBUS-DP masters and PROFIBUS-DP slaves, fully compatible with IEC 61158-2, type 3: medium attachment unit (MAU). With operation up to 20Mbps, the LTC2876/ LTC2877 supports all PROFIBUS data rates up to 12Mbps.

The LTC2876 and LTC2877 are exceptionally robust, tolerating ±60V faults on the bus pins and protected to ±52kV ESD. These devices are suitable for harsh environments or where 24V power might be inadvertently connected. Extended ±25V input common mode range and full failsafe operation improve data communication reliability in noisy systems.

The LTC2876 and LTC2877 meet PROFIBUS and RS485 specifications with a supply voltage of 4.5V to 5.5V but can operate down to 3V with reduced supply current.

Product Selection Guide
PART NUMBER LOGIC SUPPLY PIN PACKAGE
LTC2876 NO DFN-8, MSOP-8
LTC2877 YES DFN-10, MSOP-10

Packaging

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

Part Number Package Code Temp Package
Drawing
RoHS
LTC2877CDD#PBF 3x3 DFN-10 DD C 05-08-1699 Yes
LTC2877CDD#TRPBF 3x3 DFN-10 DD C 05-08-1699 Yes
LTC2877CMSE#PBF MS-10E MSE C 05-08-1664 Yes
LTC2877CMSE#TRPBF MS-10E MSE C 05-08-1664 Yes
LTC2877HDD#PBF 3x3 DFN-10 DD H 05-08-1699 Yes
LTC2877HDD#TRPBF 3x3 DFN-10 DD H 05-08-1699 Yes
LTC2877HMSE#PBF MS-10E MSE H 05-08-1664 Yes
LTC2877HMSE#TRPBF MS-10E MSE H 05-08-1664 Yes
LTC2877IDD#PBF 3x3 DFN-10 DD I 05-08-1699 Yes
LTC2877IDD#TRPBF 3x3 DFN-10 DD I 05-08-1699 Yes
LTC2877IMSE#PBF MS-10E MSE I 05-08-1664 Yes
LTC2877IMSE#TRPBF MS-10E MSE I 05-08-1664 Yes


LTC2877 Package Drawing
LTC2877 Package Drawing
LTC2877 Package Drawing
LTC2877 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTC2877CDD#PBF 3x3 DFN-10 C $3.90 $2.73 Yes
LTC2877CDD#TRPBF 3x3 DFN-10 C $3.96 $2.79 Yes
LTC2877CMSE#PBF MS-10E C $3.90 $2.73 Yes
LTC2877CMSE#TRPBF MS-10E C $3.96 $2.79 Yes
LTC2877HDD#PBF 3x3 DFN-10 H $5.16 $3.61 Yes
LTC2877HDD#TRPBF 3x3 DFN-10 H $5.22 $3.67 Yes
LTC2877HMSE#PBF MS-10E H $5.16 $3.61 Yes
LTC2877HMSE#TRPBF MS-10E H $5.22 $3.67 Yes
LTC2877IDD#PBF 3x3 DFN-10 I $4.49 $3.14 Yes
LTC2877IDD#TRPBF 3x3 DFN-10 I $4.55 $3.20 Yes
LTC2877IMSE#PBF MS-10E I $4.49 $3.14 Yes
LTC2877IMSE#TRPBF MS-10E I $4.55 $3.20 Yes
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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

  • PROFIBUS-DP
  • Industrial Communication Networks
  • RS485 and RS422 Systems
  • 3V Low Voltage Differential Signaling

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Design Tools

Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:

  • LTspice - A powerful SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators
  • LTpowerCAD - A complete power supply selection, synthesis and design tool
  • LTpowerPlay - A development environment supporting Linear Technology's Digital Power System Management (PSM) products
  • PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
  • Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
  • LinearLab Tools - A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards
  • And More!

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