LTC1690 Differential Driver and Receiver Pair with Fail-Safe Receiver Output
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
产品特点 Features
- No Damage or Latchup to ±15kV ESD (Human Body
Model), IEC1000-4-2 Level 4 (±8kV) Contact and Level 3 (±8kV)
- Guaranteed High Receiver Output State for
Floating, Shorted or Terminated Inputs with No
Signal 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
典型应用图
参数
 |
LTC1690 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) * |
| LTC1690CMS8 |
MSOP |
8 |
C |
$2.85 |
$2.00 |
| LTC1690CMS8#PBF |
MSOP |
8 |
C |
$2.85 |
$2.00 |
| LTC1690CMS8#TR |
MSOP |
8 |
C |
|
$2.06 |
| LTC1690CMS8#TRPBF |
MSOP |
8 |
C |
|
$2.06 |
| LTC1690CN8 |
PDIP |
8 |
C |
$2.25 |
$1.65 |
| LTC1690CN8#PBF |
PDIP |
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 |
PDIP |
8 |
I |
$2.90 |
$2.15 |
| LTC1690IN8#PBF |
PDIP |
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 |
LTC1690 数据手册及相关资料下载
- 数据手册 (英文) : LTC1690 - Differential Driver and Receiver Pair with Fail-Safe Receiver Output.PDF
- 设计要点 (英文) : DN168 - RS485 Transceivers Operate at 52Mbps Over 100 Feet of Unshielded Twisted Pair.PDF
- 可靠性数据 : R410 Reliability Data .PDF
- 产品选型卡 : Ultra Rugged ±60V RS485 Transceivers.PDF
- 产品选型卡 : RS485 Quick Guide.PDF
