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| 型号： | LTC1487CN8 |
| 厂商： | Linear Technology |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485 LOW EMI LOPWR 8DIP |
| 标准包装： | 50 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS422，RS485 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
1
LTC1487
sn1487 1487fs
Ultra-Low Power RS485
with Low EMI, Shutdown
and High Input Impedance
S
FEATURE
D
U
ESCRIPTIO
The LTC
1487 is an ultra-low power differential line trans-
ceiver designed with high impedance inputs allowing up to
256 transceivers to share a single bus. It meets the
requirements of RS485 and RS422. The LTC1487 features
output drivers with controlled slew rate, decreasing the
EMI radiated from the RS485 lines, and improving signal
fidelity with misterminated lines. The CMOS design offers
significant power savings without sacrificing ruggedness
against overload or ESD damage. Typical quiescent cur-
rent is only 80
A while operating and 1A in shutdown.
The driver and receiver feature three-state outputs, with
the driver outputs maintaining high impedance over the
entire common-mode range. 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. I/O pins are protected against multiple
ESD strikes of over
±10kV using the Human Body Model.
The LTC1487 is fully specified over the commercial tem-
perature range and is available in 8-pin DIP and SO
packages.
s
High Input Impedance: Up to 256 Transceivers
on the Bus
s
Low Power: ICC = 120A Max with Driver Disabled
s
ICC = 200A Max with Driver Enabled, No Load
s
1
A Quiescent Current in Shutdown Mode
s
Controlled Slew Rate Driver for Reduced EMI
s
Single 5V Supply
s
ESD Protection to
±10kV On Receiver Inputs and
Driver outputs
s
– 7V to 12V Common-Mode Range Permits
±7V
Ground Difference Between Devices on the Data Line
s
Thermal Shutdown Protection
s
Power Up/Down Glitch-Free Driver Outputs Permit
Live Insertion or Removal of Transceiver
s
Driver Maintains High Impedance in Three-State
or with the Power Off
s
Pin Compatible with the LTC485
U
A
O
PPLICATI
TYPICAL
s
Battery-Powered RS485/RS422 Applications
s
Low Power RS485/RS422 Transceiver
s
Level Translator
U
S
A
O
PPLICATI
R
1
RO
120
RE
DE
DI
2
3
7
6
7
6
4
1
2
3
4
D
R
D
RO
RE
DE
DI
LTC1487 TA01
120
330
LTC1487
EQUIVALENT LOAD OF 256
LTC1487 TRANSCEIVERS
2000 FEET OF TWISTED-PAIR WIRE
4.7nF
DI
A
B
RO
RECEIVER
INPUT
LTC1487 TA02
, LTC and LT are registered trademarks of Linear Technology Corporation.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1487CN8#PBF | 功能描述:IC TXRX RS485 LOW EMI LOPWR 8DIP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:121 系列:- 类型:收发器 驱动器/接收器数:1/1 规程:RS422，RS485 电源电压:3 V ~ 3.6 V 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-DFN（3x3） 包装:管件 |
| LTC1487CN8PBF | 制造商:Linear Technology 功能描述:LTC1487CN8PBF |
| LTC1487CS8 | 功能描述:IC TXRX RS485 LOW EMI LOPWR8SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:121 系列:- 类型:收发器 驱动器/接收器数:1/1 规程:RS422，RS485 电源电压:3 V ~ 3.6 V 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-DFN（3x3） 包装:管件 |
| LTC1487CS8#PBF | 功能描述:IC TXRX RS485 LOW EMI LOPWR8SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:RS-232 & USB Transceiver 标准包装:2,000 系列:- 类型:收发器 驱动器/接收器数:1/1 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-SSOP（0.209"，5.30mm 宽） 供应商设备封装:16-SSOP 包装:带卷 (TR) 其它名称:296-19849-2 |
| LTC1487CS8#TR | 功能描述:IC TXRX RS485 LO EMI SHTDN 8SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:121 系列:- 类型:收发器 驱动器/接收器数:1/1 规程:RS422，RS485 电源电压:3 V ~ 3.6 V 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-DFN（3x3） 包装:管件 |
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