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参数资料
| 型号： | LTC1483IS8#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/8页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485 LOW EMI LOPWR8SOIC |
| 标准包装： | 2,500 |
| 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： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
3
LTC1483
sn1483 1483fs
VCC = 5V, (Notes 2, 3) unless otherwise noted.
SWITCHI G CHARACTERISTICS
U
Note 2: All currents into device pins are positive; all currents out ot device
pins are negative. All voltages are referenced to device ground unless
otherwise specified.
Note 3: All typicals are given for VCC = 5V and TA = 25°C.
The q denotes specifications which apply over the full operating
temperature range.
Note 1: Absolute maximum ratings are those beyond which the safety of
the device cannot be guaranteed.
Supply Current vs Temperature
Receiver
tPLH – tPHL vs
Temperature
TEMPERATURE (
°C)
–50
14
12
10
8
6
4
2
0
25
75
1483 G02
–25
0
50
100
125
t PLH
–
t
PHL
(ns)
Driver Differential Output Voltage
vs Output Current
OUTPUT VOLTAGE (V)
0
70
60
50
40
30
20
10
0
3
1483 G03
12
4
5
OUTPUT
CURRENT
(mA)
TA = 25°C
TYPICAL PERFORMANCE CHARACTERISTICS
UW
TEMPERATURE (
°C)
–50
SUPPLY
CURRENT
(
A)
50
350
300
250
200
150
100
50
0
1483 G01
0
–25
25
75
125
175
150
100
DRIVER ENABLED
DRIVER DISABLED
THERMAL SHUTDOWN
WITH DRIVER ENABLED
LTC1483
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
tPLH
Driver Input to Output
RDIFF = 54, CL1 = CL2 = 100pF,
q
150
1200
ns
tPHL
Driver Input to Output
q
150
1200
ns
tSKEW
Driver Output to Output
q
100
600
ns
tr, tf
Driver Rise or Fall Time
q
150
1200
ns
tZH
Driver Enable to Output High
CL = 100pF (Figures 4, 6), S2 Closed
q
100
1500
ns
tZL
Driver Enable to Output Low
CL = 100pF (Figures 4, 6), S1 Closed
q
100
1500
ns
tLZ
Driver Disable Time from Low
CL = 15pF (Figures 4, 6), S1 Closed
q
150
1500
ns
tHZ
Driver Disable Time from High
CL = 15pF (Figures 4, 6), S2 Closed
q
150
1500
ns
tPLH
Receiver Input to Output
RDIFF = 54, CL1 = CL2 = 100pF,
q
30
140
200
ns
tPHL
Receiver Input to Output
q
30
140
200
ns
tSKD
tPLH – tPHL Differential Receiver Skew
q
13
ns
tZL
Receiver Enable to Output Low
CRL = 15pF (Figures 2, 8), S1 Closed
q
20
50
ns
tZH
Receiver Enable to Output High
CRL = 15pF (Figures 2, 8), S2 Closed
q
20
50
ns
tLZ
Receiver Disable from Low
CRL = 15pF (Figures 2, 8), S1 Closed
q
20
50
ns
tHZ
Receiver Disable from High
CRL = 15pF (Figures 2, 8), S2 Closed
q
20
50
ns
fMAX
Maximum Data Rate
q
250
kbits/s
tSHDN
Time to Shutdown
DE = 0, RE =
q
50
200
600
ns
tZH(SHDN)
Driver Enable from Shutdown to Output High
CL = 100pF (Figures 4, 6), S2 Closed
q
2000
ns
tZL(SHDN)
Driver Enable from Shutdown to Output Low
CL = 100pF (Figures 4, 6), S1 Closed
q
2000
ns
tZH(SHDN)
Receiver Enable from Shutdown to Output High
CL = 15pF (Figures 2, 8), S2 Closed
q
3500
ns
tZL(SHDN)
Receiver Enable from Shutdown to Output Low
CL = 15pF (Figures 2, 8), S1 Closed
q
3500
ns
(Figures 3, 5)
(Figures 3, 7)
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