Datasheet > LTC1686

LTC1686

更新时间： 2023-12-20 18:44:40

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
12页	184K
描述
52Mbps、精准延迟、RS485 故障保险收发器

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中文翻译

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数据手册

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LTC1686 数据手册

LTC1686/LTC1687

52Mbps Precision Delay

RS485 Fail-Safe Transceivers

DESCRIPTION

FEATURES

The LTC^®1686/LTC1687 are high speed, precision delay,

full-duplex RS485 transceivers that can operate at data

rates as high as 52Mbps. The devices also meet the

requirements of RS422.

■

Precision Propagation Delay Over Temperature:

Receiver/Driver: 18.5ns

High Data Rate: 52Mbps

Low t_PLH/t_PHLSkew:

±3.5ns

■

Receiver/Driver: 500ps Typ

A unique architecture provides very stable propagation

delays and low skew over a wide common mode and

ambient temperature range.

■

–7V to 12V RS485 Input Common Mode Range

Guaranteed Fail-Safe Operation Over the Entire

Common Mode Range

High Input Resistance: ≥22k, Even When Unpowered

Short-Circuit Protected

Thermal Shutdown Protected

Driver Maintains High Impedance in Three-State or

with Power Off

Single 5V Supply

Pin Compatible with LTC490/LTC491

45dB CMRR at 26MHz

■

The driver and receiver feature three-state outputs, with

disabled driver outputs maintaining high impedance over

the entire common mode range. A short-circuit feature

detects shorted outputs and substantially reduces driver

output current. A similar feature also protects the receiver

output from short circuits. Thermal shutdown circuitry

protects from excessive power dissipation.

■

The receiver has a fail-safe feature that guarantees a high

output state when the inputs are shorted or are left floating.

The LTC1686/LTC1687 RS485 transceivers guarantee

receiver fail-safe operation over the entire common mode

range (–7V to 12V). Receiver input resistance remains

≥22k when the device is unpowered or disabled.

APPLICATIONS

■

High Speed RS485/RS422 Full Duplex Transceivers

■

Level Translator

■

Backplane Transceiver

■

The LTC1686/LTC1687 operate from a single 5V supply

and draw only 7mA of supply current.

STS-1/OC-1 Data Transceiver

■

Signal Repeaters

, LTC and LT are registered trademarks of Linear Technology Corporation.

TYPICAL APPLICATION

10Mbps Data Pulse

400 Feet Category 5 UTP

LTC1686

DRIVER INPUT

2V/DIV

CABLE DELAY

100Ω

DRIVER

RECEIVER

INPUT

1V/DIV

5V/DIV

100Ω

DRIVER

RECEIVER

OUTPUT

400 FT OF CATEGORY 5 UTP

100ns/DIV

1686/87 TA02

LTC1686/87 • TA01

12 3 4 5 6 7...12

中文翻译

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与LTC1686相关器件

型号	品牌	获取价格	描述	数据表
LTC1686_15	Linear	获取价格	52Mbps Precision Delay RS485 Fail-Safe Transceivers
LTC1686CS8	Linear	获取价格	52Mbps Precision Delay RS485 Fail-Safe Transceivers
LTC1686CS8#PBF	Linear	获取价格	LTC1686 - 52Mbps Precision Delay RS485 Fail-Safe Transceivers; Package: SO; Pins: 8; Tempe
LTC1686CS8#TRPBF	Linear	获取价格	LTC1686 - 52Mbps Precision Delay RS485 Fail-Safe Transceivers; Package: SO; Pins: 8; Tempe
LTC1686IS8#TR	Linear	获取价格	LTC1686 - 52Mbps Precision Delay RS485 Fail-Safe Transceivers; Package: SO; Pins: 8; Tempe
LTC1687	Linear	获取价格	52Mbps Precision Delay RS485 Fail-Safe Transceivers
LTC1687	ADI	获取价格	52Mbps、精准延迟、RS485 故障保险收发器
LTC1687_15	Linear	获取价格	52Mbps Precision Delay RS485 Fail-Safe Transceivers
LTC1687CS	Linear	获取价格	52Mbps Precision Delay RS485 Fail-Safe Transceivers
LTC1687CS#PBF	Linear	获取价格	LTC1687 - 52Mbps Precision Delay RS485 Fail-Safe Transceivers; Package: SO; Pins: 14; Temp

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