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参数资料
型号： MAX485
厂商： Maxim Integrated Products, Inc.
英文描述： Low-Power, Slew-Rate-Limited RS-485Transceivers(2.5Mbps,半双工, RS-485收发器,直接LTC485代用件)
中文描述： 低功耗、限摆率、RS-485/RS-422收发器
文件页数： 3/16页
文件大小： 205K
代理商： MAX485
M
Low-Power, S lew-Rate-Limited
RS -485/RS -422 Transc eivers
_______________________________________________________________________________________
3
SWITCHING CHARACTERISTICS—MAX481/MAX485, MAX490/MAX491, MAX1487
(V
CC
= 5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 1, 2)
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 1, 2)
mA
7
95
0V
≤
V
O
≤
V
CC
I
OSR
Receiver Short-Circuit Current
mA
35
250
-7V
≤
V
O
≤
12V (Note 4)
I
OSD2
Driver Short-Circuit Current,
V
O
= Low
mA
35
250
-7V
≤
V
O
≤
12V (Note 4)
I
OSD1
Driver Short-Circuit Current,
V
O
= High
MAX1487,
CC
250
120
400
250
350
650
ns
10
30
5
15
15
15
40
60
10
40
25
40
70
t
PHL
t
SKEW
Driver Rise or Fall Time
Figures 6 and 8, R
DIFF
= 54
, C
L1
= C
L2
= 100pF
MAX481, MAX485, MAX1487
Figures 6 and 8,
R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
Figures 7 and 9, C
L
= 100pF, S2 closed
Figures 7 and 9, C
L
= 100pF, S1 closed
Figures 7 and 9, C
L
= 15pF, S1 closed
Figures 7 and 9, C
L
= 15pF, S2 closed
ns
ns
MAX490M, MAX491M
MAX490C/E, MAX491C/E
20
20
90
90
150
200
MAX481, MAX485, MAX1487
MAX490M, MAX491M
MAX490C/E, MAX491C/E
Figures 6 and 8, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
MAX481 (Note 5)
Figures 5 and 11, C
RL
= 15pF, S2 closed
Figures 5 and 11, C
RL
= 15pF, S1 closed
Figures 5 and 11, C
RL
= 15pF, S2 closed
Figures 5 and 11, C
RL
= 15pF, S1 closed
Figures 6 and 10, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
Figures 6 and 10,
R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
CONDITIONS
ns
ns
50
200
600
t
SHDN
Time to Shutdown
Mbps
2.5
f
MAX
Maximum Data Rate
ns
20
50
t
HZ
Receiver Disable Time from High
ns
10
30
60
t
PLH
20
50
t
LZ
Receiver Disable Time from Low
ns
20
50
t
ZH
Driver Input to Output
Receiver Enable to Output High
ns
20
50
t
ZL
Receiver Enable to Output Low
20
90
200
ns
ns
13
40
70
t
HZ
t
SKD
Driver Disable Time from High
|
t
PLH
- t
PHL
|
Differential
Receiver Skew
40
70
t
LZ
Driver Disable Time from Low
ns
40
70
t
ZL
Driver Enable to Output Low
3
5
3
ns
ns
t
R
, t
F
Driver Output Skew to Output
t
PLH
, t
PHL
Receiver Input to Output
t
ZH
Driver Enable to Output High
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
230
400
300
500
MAX481/MAX485,
CC
500
300
900
500
MAX490/MAX491,
CC
300
500
MAX488/MAX489,
CC
120
250
DE = V
CC
DE = 0V
DE = V
CC
DE = 0V
μA
MAX481/483/487, DE = 0V, –—= V
CC
0.1
10
I
SHDN
Supply Current in Shutdown
I
CC
No-Load Supply Current
(Note 3)
DE = 5V
DE = 0V
MAX483
MAX487
MAX483/MAX487,
CC
μA
相关PDF资料
PDF描述
MAX1487 Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers(2.5Mbps，半双工，RS-485/RS-422收发器)
MAX487 Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers(250kbps,±15kvESD保护,半双工,RS-485/RS-232收发器)
MAX488 Low-Power, Slew-Rate-Limited RS-485Transceivers(250kbps,全双工, RS-485收发器)
MAX492 Dual, Micropower, Single-Supply Rail-to-Rail Op Amps(输入失调电压500μV,单电源满量程运放)
MAX494 Quad, Micropower, Single-Supply Rail-to-Rail Op Amps(输入失调电压500μV,单电源满量程运放)
相关代理商/技术参数
参数描述
MAX4850ETE 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16
MAX4850ETE+ 功能描述:模拟开关 IC High-Bandwidth Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16
MAX4850ETE+T 功能描述:模拟开关 IC High-Bandwidth Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16
MAX4850ETE-T 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16
MAX4850HETE 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16
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