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LTC490 - 典型应用图例：
LTC490典型应用图例一
LTC490 - 封装图解：
LTC490封装图解一
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LINEAR产品 - LTC490介绍

LTC490 - LTC490是Differential Driver and Receiver Pair

LTC490是LINEAR凌力尔特公司的一款RS485 / RS422 收发器产品，LTC490是LTC490是Differential Driver and Receiver Pair，本站介绍了LTC490的封装应用图解、特点和优点、功能等，并给出了与LTC490相关的LINEAR元器件型号供参考。

LTC490 - LTC490是Differential Driver and Receiver Pair - RS485 / RS422 收发器 - 接口器件 - 凌力尔特

LTC490 - Differential Driver and Receiver Pair

LTC490 - Differential Driver and Receiver Pair - Linear Technology（凌力尔特）

功能描述

The LTC490 is a low power differential bus/line transceiver designed for multipoint data transmission standard RS485 applications with extended common mode range (12V to –7V). It also meets the requirements of RS422.

The CMOS design offers significant power savings over its bipolar counterpart without sacrificing ruggedness against overload or ESD damage.

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 receiver has a fail safe feature which guarantees a high output state when the inputs are left open.

Both AC and DC specifications are guaranteed from 0°C to 70°C and 4.75V to 5.25V supply voltage range.

特点
  • Low Power: ICC = 300µA Typical
  • Designed for RS485 or RS422 Applications
  • Single 5V Supply
  • -7V to 12V Bus Common-Mode Range Permits ±7V Ground Difference Between Devices on the Bus
  • Thermal Shutdown Protection
  • Power-Up/Down Glitch-Free Driver Outputs Permit Live Insertion or Removal of Package
  • Driver Maintains High Impedance with the Power Off
  • Combined Impedance of a Driver Output and Receiver Allows up to 32 Transceivers on the Bus
  • 70mV Typical Input Hysteresis
  • 28ns Typical Driver Propagation Delays with 5ns Skew for 2.5MB Operation
  • Pin Compatible with the SN75179
  • Available in 8-Lead PDIP and SO Packages
    • 应用
  • Low Power RS485/RS422 Transceiver
  • Level Translator
    • 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)
    LTC490CN8 N-8 C $2.92 $2.40
    LTC490CN8#PBF N-8 C $2.92 $2.40
    LTC490CS8 SO-8 C $3.58 $2.95
    LTC490CS8#PBF SO-8 C $3.58 $2.95
    LTC490CS8#TR SO-8 C $3.01
    LTC490CS8#TRPBF SO-8 C $3.01
    LTC490IN8 N-8 I $3.58 $2.95
    LTC490IN8#PBF N-8 I $3.58 $2.95
    LTC490IS8 SO-8 I $4.25 $3.35
    LTC490IS8#PBF SO-8 I $4.25 $3.35
    LTC490IS8#TR SO-8 I $3.41
    LTC490IS8#TRPBF SO-8 I $3.41
    下面可能是您感兴趣的Linear Technology（凌力尔特）元器件
  • LTM2881 - 完整的隔离型 RS485 / RS422 μModule 收发器和电源
  • LTC485 - 低功率 RS485 接口收发器
  • LT3080 - 可调 1.1A、单电阻、低压差稳压器
  • LTC491 - Differential Driver and Receiver Pair
  • LT1785 - 具故障保护功能的 60V RS485/RS422 收发器
  • LTC1690 - Differential Driver and Receiver Pair with Fail-Safe Receiver Output
  • LT4320 / LT4320-1 - 理想二极管桥控制器
  • LTC1535 - 隔离型 RS485 收发器
  • LT5400 - 四个匹配的电阻器
  • LT1763 - 500mA、低噪声、LDO 微功率稳压器
    • 下面可能是您感兴趣的凌力尔特公司RS485 / RS422 收发器元器件
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