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LTC1688 - LTC1688是100Mbps RS485 Hot Swapable Quad Drivers

LTC1688是LINEAR凌力尔特公司的一款RS485 / RS422 收发器产品，LTC1688是LTC1688是100Mbps RS485 Hot Swapable Quad Drivers，本站介绍了LTC1688的封装应用图解、特点和优点、功能等，并给出了与LTC1688相关的LINEAR元器件型号供参考。

LTC1688 - LTC1688是100Mbps RS485 Hot Swapable Quad Drivers - RS485 / RS422 收发器 - 接口器件 - 凌力尔特

LTC1688 - 100Mbps RS485 Hot Swapable Quad Drivers

LTC1688 - 100Mbps RS485 Hot Swapable Quad Drivers - Linear Technology（凌力尔特）

功能描述

The LTC1688/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 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.

特点

Ultrahigh Speed:100Mbps

Guaranteed Propagation Delay: 8ns ±4ns Over Temperature

Low Channel-to-Channel Skew: 500ps Typ

Hot Swap™ 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

应用

High Speed RS485 Twisted-Pair Drivers

High Speed Backplane Drivers

Complementary Clock Drivers

STS-1/OC-1 Data Drivers

SCSI Drivers

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC1688CS	SO-16	C	$5.80	$4.95
LTC1688CS#PBF	SO-16	C	$5.80	$4.95
LTC1688CS#TR	SO-16	C		$5.01
LTC1688CS#TRPBF	SO-16	C		$5.01
LTC1688IS	SO-16	I	$7.75	$5.65
LTC1688IS#PBF	SO-16	I	$7.75	$5.65
LTC1688IS#TR	SO-16	I		$5.71
LTC1688IS#TRPBF	SO-16	I		$5.71

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