Datasheet > LTC1690C

LTC1690C

更新时间： 2022-11-30 12:16:04

品牌	Logo	应用领域
凌特 - Linear		驱动器
页数	文件大小	规格书
12页	225K
描述
Differential Driver and Receiver Pair with Fail-Safe Receiver Output

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LTC1690C 数据手册

LTC1690

Differential Driver and

Receiver Pair with Fail-Safe

Receiver Output

DESCRIPTIO

FEATURES

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.

■

No Damage or Latchup to

Model), IEC1000-4-2 Level 4 (

15kV ESD (Human Body

8kV) Contact and

Level 3 (±8kV) Air Discharge

■

Guaranteed High Receiver Output State for

Floating, Shorted or Terminated Inputs with No

Signal Present

■

Drives Low Cost Residential Telephone Wires

I_CC= 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

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 shut-

down circuit which forces the driver outputs into a high

impedance state.

■

The LTC1690 is fully specified over the commercial and

industrialtemperatureranges. TheLTC1690isavailablein

8-Pin SO, MSOP and PDIP packages.

Pin Compatible with the SN75179 and LTC490

Available in SO, MSOP and PDIP Packages

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

APPLICATIO S

■

Battery-Powered RS485/RS422 Applications

■

Low Power RS485/RS422 Transceiver

■

Level Translator

Line Repeater

■

TYPICAL APPLICATIO

Driving a 1000 Foot STP Cable

LTC1690

120Ω

DRIVER

RECEIVER

120Ω

RECEIVER

DRIVER

1690 TA01a

1690 TA01

12 3 4 5 6 7...12

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