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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： 4/16页
文件大小： 205K
代理商： MAX485
M
Low-Power, S lew-Rate-Limited
RS -485/RS -422 Transc eivers
4
_______________________________________________________________________________________
SWITCHING CHARACTERISTICS—MAX483, MAX487/MAX488/MAX489
(V
CC
= 5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 1, 2)
SWITCHING CHARACTERISTICS—MAX481/MAX485, MAX490/MAX491, MAX1487 (continued)
(V
CC
= 5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 1, 2)
300
1000
Figures 7 and 9, C
L
= 100pF, S2 closed
Figures 7 and 9, C
L
= 100pF, S1 closed
Figures 5 and 11, C
L
= 15pF, S2 closed,
A - B = 2V
CONDITIONS
ns
40
100
t
ZH(SHDN)
Driver Enable from Shutdown to
Output High (MAX481)
ns
Figures 5 and 11, C
L
= 15pF, S1 closed,
B - A = 2V
t
ZL(SHDN)
Receiver Enable from Shutdown
to Output Low (MAX481)
ns
40
100
t
ZL(SHDN)
Driver Enable from Shutdown to
Output Low (MAX481)
ns
300
1000
t
ZH(SHDN)
Receiver Enable from Shutdown
to Output High (MAX481)
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
t
PLH
t
PHL
t
SKEW
Figures 6 and 8, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
Figures 6 and 8, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
Driver Input to Output
Driver Output Skew to Output
ns
100
800
ns
ns
2000
MAX483/MAX487, Figures 7 and 9,
C
L
= 100pF, S2 closed
MAX483/MAX487, Figures 7 and 9,
C
L
= 100pF, S1 closed
t
ZH(SHDN)
Driver Enable from Shutdown to
Output High
Driver Enable from Shutdown to
Output Low
250
2000
ns
2500
MAX483/MAX487, Figures 5 and 11,
C
L
= 15pF, S1 closed
t
ZL(SHDN)
Receiver Enable from Shutdown
to Output Low
ns
2500
MAX483/MAX487, Figures 5 and 11,
C
L
= 15pF, S2 closed
t
ZH(SHDN)
Receiver Enable from Shutdown
to Output High
ns
2000
t
ZL(SHDN)
ns
50
200
600
MAX483/MAX487 (Note 5)
t
SHDN
Time to Shutdown
t
PHL
t
PLH
, t
PHL
< 50% of data period
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 7 and 9, C
L
= 15pF, S2 closed
Figures 6 and 10, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
Figures 7 and 9, C
L
= 15pF, S1 closed
Figures 7 and 9, C
L
= 100pF, S1 closed
Figures 7 and 9, C
L
= 100pF, S2 closed
CONDITIONS
kbps
250
f
MAX
250
800
2000
Maximum Data Rate
ns
20
50
t
HZ
Receiver Disable Time from High
ns
250
800
2000
20
50
t
LZ
Receiver Disable Time from Low
ns
20
50
t
ZH
Receiver Enable to Output High
ns
20
50
t
ZL
Receiver Enable to Output Low
ns
ns
100
300
250
3000
2000
t
HZ
t
PLH
t
SKD
Driver Disable Time from High
I
t
PLH
- t
PHL
I
Differential
Receiver Skew
Figures 6 and 10, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
ns
300
3000
t
LZ
Driver Disable Time from Low
ns
250
2000
t
ZL
Driver Enable to Output Low
ns
Figures 6 and 8, R
DIFF
= 54
,
C
L1
= C
L2
= 100pF
ns
250
2000
t
R
, t
F
Driver Rise or Fall Time
ns
Receiver Input to Output
250
2000
t
ZH
Driver Enable to Output High
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
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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