LTC1482 Low Power RS485 Transceiver with Receiver Fail-Safe
The LTC®1484 is a low power RS485 compatible transceiver. In receiver mode, it offers a fail-safe feature which 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. Both driver and receiver feature three-state outputs with separate receiver and driver control pins. The driver outputs maintain high impedance over the entire common mode range when three-stated. Excessive power dissipation caused by bus contention or faults is prevented by a thermal shutdown circuit that forces the driver outputs into a high impedance state. Enhanced ESD protection allows the LTC1484 to withstand ±15kV (human body model), IEC-1000-4-2 level 4 (±8kV) contact and level 3 (±8kV) air discharge ESD without latchup or damage. The LTC1484 is fully specified over the commercial and industrial temperature ranges and is available in 8-lead MSOP, PDIP and SO packages
产品特点 Features
- No Damage or Latchup to ±15kV ESD (Human
Body Model), IEC-1000-4-2 Level 4 Contact (±8kV)
and Level 3 (
- Guaranteed High Receiver Output State for Floating,
Shorted or Terminated Inputs with No Signal
Present
- Drives Low Cost Residential Telephone Wires
- Low Power: ICC = 700µA Max with Driver Disabled
- ICC = 900µA Max for Driver Enable with No Load
- 20µA Max Quiescent Current in Shutdown Mode
- 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
- Up to 32 Transceivers on the Bus
- Pin Compatible with the LTC485
- Available in 8-Lead MSOP, PDIP and SO Packages
|
应用
- Battery-Powered RS485/RS422 Applications
- Low Power RS485/RS422 Transceiver
- Level Translator
典型应用图
参数
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LTC1482 订购信息和价格参考Package Variations and Pricing
| 器件型号 |
封装 |
引脚 |
温度 |
价格 (以 1 ~ 99 片为批量) |
价格 (以 1000 片为批量) * |
| LTC1482CMS8 |
MSOP |
8 |
C |
$3.25 |
$2.30 |
| LTC1482CMS8#PBF |
MSOP |
8 |
C |
$3.25 |
$2.30 |
| LTC1482CMS8#TR |
MSOP |
8 |
C |
|
$2.36 |
| LTC1482CMS8#TRPBF |
MSOP |
8 |
C |
|
$2.36 |
| LTC1482CN8 |
PDIP |
8 |
C |
$2.65 |
$1.95 |
| LTC1482CN8#PBF |
PDIP |
8 |
C |
$2.65 |
$1.95 |
| LTC1482CS8 |
SO |
8 |
C |
$2.75 |
$2.00 |
| LTC1482CS8#PBF |
SO |
8 |
C |
$2.75 |
$2.00 |
| LTC1482CS8#TR |
SO |
8 |
C |
|
$2.06 |
| LTC1482CS8#TRPBF |
SO |
8 |
C |
|
$2.06 |
| LTC1482IN8 |
PDIP |
8 |
I |
$3.50 |
$2.55 |
| LTC1482IN8#PBF |
PDIP |
8 |
I |
$3.50 |
$2.55 |
| LTC1482IS8 |
SO |
8 |
I |
$3.65 |
$2.70 |
| LTC1482IS8#PBF |
SO |
8 |
I |
$3.65 |
$2.70 |
| LTC1482IS8#TR |
SO |
8 |
I |
|
$2.76 |
| LTC1482IS8#TRPBF |
SO |
8 |
I |
|
$2.76 |
LTC1482 数据手册及相关资料下载
- 数据手册 (英文) : LTC1484 - Low Power RS485 Transceiver with Receiver Fail-Safe.PDF
- 设计要点 (英文) : DN102 - RS485 Transceivers Reduce Power and EMI.PDF
- 可靠性数据 : R397 Reliability Data .PDF
- 产品选型卡 : Ultra Rugged ±60V RS485 Transceivers.PDF
- 产品选型卡 : RS485 Quick Guide.PDF
