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LTC2858-2 Datasheet(PDF) 1 Page - Linear Technology |
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LTC2858-2 Datasheet(HTML) 1 Page - Linear Technology |
1 / 20 page LTC2856-1/LTC2856-2 LTC2857-1/LTC2857-2 LTC2858-1/LTC2858-2 1 285678ff For more information www.linear.com/LTC2856-1 Typical applicaTion FeaTures applicaTions DescripTion 20Mbps and Slew Rate Limited 15kV RS485/RS422 Transceivers 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 outputstateunderconditionsoffloatingorshortedinputs. The driver maintains a high output impedance over the entire common mode range when disabled or when the supplyisremoved.Excessivepowerdissipationcausedby bus contention or a fault is prevented by current limiting all outputs and by thermal shutdown. Enhanced ESD protection allows these parts to withstand ±15kV (human body model) on the transceiver interface pins without latchup or damage. n 20Mbps or Low EMI 250kbps Maximum Data Rate n No Damage or Latchup to ESD: ±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: 900µA Maximum in Receive Mode n Compatible with TIA/EIA-485-A Specifications n Available in 8-Lead and 10-Lead 3mm × 3mm DFN and 8-Lead and 10-Lead MSOP Packages n Low Power RS485/RS422 Transceiver n Level Translator n Backplane Transceiver VCC1 GND1 R RO1 RE1 DE1 DI1 D RT LTC2856-1 LTC2856-1 RT 285678 TA01a VCC2 GND2 R RO2 RE2 DE2 DI2 D PART NUMBER MAX DATA RATE (Mbps) DUPLEX PACKAGE LTC2856-1 20 Half MSOP-8, DFN-8 LTC2856-2 0.25 Half MSOP-8, DFN-8 LTC2857-1 20 Full MSOP-8, DFN-8 LTC2857-2 0.25 Full MSOP-8, DFN-8 LTC2858-1 20 Full MSOP-10, DFN-10 LTC2858-2 0.25 Full MSOP-10, DFN-10 DI Y Z Y-Z 20ns/DIV 2856 TA01b LTC2858-1 at 20Mbps L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. |
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Similar Description - LTC2858-2_15 |
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