参数资料
型号: LTC1518IS
厂商: Linear Technology
文件页数: 1/12页
文件大小: 0K
描述: IC LINE RCVR RS485 QUAD 16-SOIC
标准包装: 50
类型: 线路接收器
驱动器/接收器数: 0/4
规程: RS422,RS485
电源电压: 4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SOIC
包装: 管件
1
LTC1518/LTC1519
52Mbps Precision Delay
RS485 Quad Line Receivers
s
Precision Propagation Delay: 18.5ns
±3.5ns Over
0
°C to 70°C Temperature Range
s
High Data Rate:
52Mbps
s
Low tPLH/tPHL Skew: 500ps Typ
s
Low Channel-to-Channel Skew: 500ps Typ
s
Guaranteed Fail-Safe Operation over the Entire
Common Mode Range
s
–7V to 12V RS485 Input Common Mode Range
s
Input Resistance
≥22k, Even When Unpowered
s
Hot Swap
TM Capable
s
High Common Mode Rejection to 26MHz
s
Short-Circuit Protection: 10mA Typ Output Current
for an Indefinite Short
s
Three-State Output Capability
s
Will Not Oscillate with Slow Moving Input Signals
s
Single 5V Supply
s
Pin Compatible with LTC488, LTC489
The LTC
1518/LTC1519 are high speed, precision delay
differential quad bus/line receivers that can operate at data
rates as high as 52Mbps. They are pin compatible with the
LTC488/LTC489 RS485 line receivers and operate over the
entire – 7V to 12V common mode range. A unique architec-
ture provides very stable propagation delays and low skew
over wide input common mode, input overdrive and ambi-
ent temperature ranges. Propagation delay is 18.5ns
±3.5ns
over the commercial temperature range. Typical tPLH/tPHL
and channel-to-channel skew is 500ps.
Each receiver translates differential input levels (
VID
300mV) into valid CMOS and TTL output levels. Its high
input resistance (
≥22k) allows many receivers to be con-
nected to the same driver. The receiver outputs go into a
high impedance state when disabled.
The receivers have a fail-safe feature that guarantees a high
output state when the inputs are shorted or left floating.
Other protection features include thermal shutdown and a
controlled maximum short-circuit current (50mA Max).
Input resistance remains
≥22k when the device is
unpowered or disabled, thus allowing hot swapping with-
out loading the data lines.
The LTC1518/LTC1519 operate from a single 5V supply
and draw 12mA of supply current.
s
High Speed RS485/RS422 Receivers
s
STS-1/OC-1 Data Receivers
s
PECL Line Receivers
s
Level Translators
s
Fast-20/Fast-40 SCSI Receiver
Propagation Delay Guaranteed to Fall
Within Shaded Area (
±3.5ns)
52Mbps Data Communication over Twisted Pair
, LTC and LT are registered trademarks of Linear Technology Corporation.
Hot Swap is a trademark of Linear Technology Corporation.
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
1518/19 TA02
VIN =
3V/DIV
VOUT =
5V/DIV
–5
5
15
TIME (ns)
25
35
0
10203040 45
RECEIVER
INPUT
VID = 1.5V
RECEIVER
OUTPUT
VDD = 5V
TA = 0°C TO 70°C
100
A 1
4
EN
RO
1518/19 F08
1/4 LTC1518
LTC1685
12
3
2 B
7
6
3
2
DE
DI
RO
4
1
100
7
6
3
2
DE
DI
RO
4
1
RE
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LTC1518IS#PBF 功能描述:IC LINE RCVR RS485 QUAD 16-SOIC 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:1 系列:- 类型:线路收发器 驱动器/接收器数:5/3 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC(0.295",7.50mm 宽) 供应商设备封装:28-SOIC 包装:Digi-Reel® 产品目录页面:918 (CN2011-ZH PDF) 其它名称:296-25096-6
LTC1518IS#TR 功能描述:IC LINE RCVR RS485 QUAD 16-SOIC 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:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232,RS485 电源电压:4.75 V ~ 5.25 V 安装类型:表面贴装 封装/外壳:28-SOIC(0.295",7.50mm 宽) 供应商设备封装:28-SOIC 包装:管件
LTC1518IS#TRPBF 功能描述:IC LINE RCVR RS485 QUAD 16-SOIC 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:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232,RS485 电源电压:4.75 V ~ 5.25 V 安装类型:表面贴装 封装/外壳:28-SOIC(0.295",7.50mm 宽) 供应商设备封装:28-SOIC 包装:管件
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