LTC1690是Differential Driver and Receiver Pair with Fail-Safe Receiver Output

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LTC1690 - LTC1690是Differential Driver and Receiver Pair with Fail-Safe Receiver Output

LTC1690是Linear公司的一款RS485 / RS422 收发器产品，LTC1690是Differential Driver and Receiver Pair with Fail-Safe Receiver Output，本站介绍了LTC1690的封装应用图解、特点和优点、功能等，并给出了与LTC1690相关的凌力尔特元器件型号供参考。

LTC1690 - Differential Driver and Receiver Pair with Fail-Safe Receiver Output

LTC1690 - Differential Driver and Receiver Pair with Fail-Safe Receiver Output - Linear Technology（凌力尔特）

功能描述

The LTC®1690 is a low power receiver/driver pair that is compatible with the requirements of RS485 and RS422. The receiver offers a fail-safe feature that guarantees a high receiver output state when the inputs are left open, shorted together or terminated with no signal present. No external components are required to ensure the high receiver output state.Separate driver output and receiver input pins allow full duplex operation. Excessive power dissipation caused by bus contention or faults is prevented by a thermal shutdown circuit which forces the driver outputs into a high impedance state.The LTC1690 is fully specified over the commercial and industrial temperature ranges. The LTC1690 is available in 8-Pin SO, MSOP and PDIP packages.

特点

No Damage or Latchup to ±15kV ESD (Human BodyModel), IEC1000-4-2 Level 4 (±8kV) Contact and Level 3 (±8kV)

Guaranteed High Receiver Output State for Floating, Shorted or Terminated Inputs with NoSignal Present

Drives Low Cost Residential Telephone Wires

ICC = 600µA Max with No Load

Single 5V Supply

?7V to 12V Common Mode Range Permits ±7V Ground Difference Between Devices on the Data Line

Power-Up/Down Glitch-Free Driver Outputs Permit Live Insertion or Removal of Transceiver

Driver Maintains High Impedance with the Power Off

Up to 32 Transceivers on the Bus

Pin Compatible with the SN75179 and LTC490

Available in SO, MSOP and PDIP Packages

应用

Battery-Powered RS485/RS422 Applications

Low Power RS485/RS422 Transceiver

Level Translator

Line Repeater

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)
LTC1690CMS8	MS-8	C	$2.85	$2.00
LTC1690CMS8#PBF	MS-8	C	$2.85	$2.00
LTC1690CMS8#TR	MS-8	C		$2.06
LTC1690CMS8#TRPBF	MS-8	C		$2.06
LTC1690CN8	N-8	C	$2.25	$1.65
LTC1690CN8#PBF	N-8	C	$2.25	$1.65
LTC1690CS8	SO-8	C	$2.35	$1.75
LTC1690CS8#PBF	SO-8	C	$2.35	$1.75
LTC1690CS8#TR	SO-8	C		$1.81
LTC1690CS8#TRPBF	SO-8	C		$1.81
LTC1690IN8	N-8	I	$2.90	$2.15
LTC1690IN8#PBF	N-8	I	$2.90	$2.15
LTC1690IS8	SO-8	I	$3.10	$2.25
LTC1690IS8#PBF	SO-8	I	$3.10	$2.25
LTC1690IS8#TR	SO-8	I		$2.31
LTC1690IS8#TRPBF	SO-8	I		$2.31