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LTC1688

Features: ·Ultrahigh Speed: 100Mbps·Guaranteed Propagation Delay: 8ns ±4ns Over Temperature·Low Channel-to-Channel Skew: 500ps Typ·Hot SwapTM Capable·50Mbps Operation with VDD = 3V·Low tPLH/tPHL Skew: 500ps Typ·Driver Outputs Maintain High Impedance in Three-State or with Power Off·Short-Circuit P...

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SeekIC No. : 004401797 Detail

LTC1688: Features: ·Ultrahigh Speed: 100Mbps·Guaranteed Propagation Delay: 8ns ±4ns Over Temperature·Low Channel-to-Channel Skew: 500ps Typ·Hot SwapTM Capable·50Mbps Operation with VDD = 3V·Low tPLH/tPHL Ske...

LTC1688 Data Sheet

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Part Number:
LTC1688
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·Ultrahigh Speed: 100Mbps
·Guaranteed Propagation Delay: 8ns ±4ns Over Temperature
·Low Channel-to-Channel Skew: 500ps Typ
·Hot SwapTM Capable
·50Mbps Operation with VDD = 3V
·Low tPLH/tPHL Skew: 500ps Typ
·Driver Outputs Maintain High Impedance in Three-State or with Power Off
·Short-Circuit Protected: 3mA Typ Output Current for an Indefinite Short
·Thermal Shutdown Protected
·Single 5V or 3V Supply
·Pin Compatible with LTC486/LTC487


Application

·High Speed RS485 Twisted-Pair Drivers
·High Speed Backplane Drivers
·Complementary Clock Drivers
·STS-1/OC-1 Data Drivers
·SCSI Drivers


Pinout

Connection Diagram


Specifications

Supply Voltage (VDD) ................................................ 7V
Enable Input Voltages ................. 0.5V to (VDD + 0.5V)
Enable Input Currents ..................... 100mA to 100mA
Driver Input Voltages .................. 0.5V to (VDD + 0.5V)
Driver Output Voltages ................. ( 12V + VDD) to 12V
Driver Input Currents ...................... 100mA to 100mA
Short-Circuit Duration (VOUT: 7V to 10V) ...... Indefinite
Operating Temperature Range
LTC1688C/LTC1689C ................................ 0°C to 70°C
LTC1688I/LTC1689I ............................. 40°C to 85°C
Storage Temperature Range .............. 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C


Description

The LTC®1688/LTC1689 are ultrahigh speed, differential bus/line drivers that can operate at data rates up to 100Mbps. Propagation delay is guaranteed at 8ns ±4ns over the full operating temperature range. These devices operate over the full RS485 common mode range (7V to 12V), and also meet RS422 requirements.

The driver of LTC1688 outputs are Hot Swap capable, maintaining backplane data integrity during board insertion and removal. The drivers feature three-state outputs, maintaining high impedance over the entire common mode range ( 7V to 12V). Outputs also remain high impedance during power-up and with the power off. A short-circuit feature detects bus contention and substantially reduces driver output current. Thermal shutdown circuitry protects the parts from excessive power dissipation.

The LTC1688 allows all four drivers to be enabled together, while the LTC1689 allows two drivers at a time to be enabled.

The LTC1688/LTC1689 operate from a single 5V or 3V supply and draw only 9mA of supply current.




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