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ADM1487JR Folha de dados(PDF) 3 Page - Analog Devices

Nome de Peças ADM1487JR
Descrição Electrónicos  Ultra-Low Power RS-485/RS-422 Transceiver with Low EMI and /-10kV ESD Protection
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

ADM1487JR Folha de dados(HTML) 3 Page - Analog Devices

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ADM1487
Rev. PrC
–3–
ADM1487SPECIFICATIONS(continued)
ELECTRICAL CHARACTERISTICS
(VCC = +5V ±5%, TA = -40°C TO +85°C, UNLESS OTHERWISE NOTED)
Parameter
Min
Typ
Max
Units Test Conditions/Comments
Differential Driver Output Voltage, VOD1
5
V
Unloaded, IO = 0
Differential Driver Output Voltage, VOD2
2.0
V
Figure 1, R = 50
(RS-422)
1.5
5
V
Figure 1, R = 27
(RS-485)
Driver Common-Mode
3
V
Figure 1, R = 27
or R = 50
Output Voltage, VOC
Differential Input Threshold
–0.2
0.2
V
–7V
VCM
12V
Voltage for Receiver, VTH
Receiver Input Hysteresis,
VTH
45
m V
VCM = 0V
Supply Current, ICC
120
200
µ A
No Load, Output Enabled
80
120
µ A
No Load, Output Disabled
Supply Current in Shutdown Mode, ISHDN
1
10
µ A
DE = 0V,
RE = V
CC
Driver Input to Output High, tDPLH
150
1200
ns
Figures 2, 3, RDIFF= 54 ,
CL1 = CL2 = 100pF
Driver Input to Output Low, tDPHL
150
1200
ns
Figures 2, 3, RDIFF= 54 ,
CL1 = CL2 = 100pF
Driver Output to Output, tSKEW
100
600
ns
Figures 2, 3, RDIFF= 54 ,
CL1 = CL2 = 100pF
Driver Rise or Fall Time, tDR, tDF
150
2000
ns
Figures 2, 3, RDIFF= 54 ,
CL1 = CL2 = 100pF
Receiver Input to Output High, tRPLH
30
140
250
ns
Figures 2, 4, RDIFF= 54 ,
CL1 = CL2 = 100pF
Receiver Input to Output Low, tRHL
30
140
250
ns
Figures 2, 4, RDIFF= 54 ,
CL1 = CL2 = 100pF
Differential Receiver Skew, tSKD
13
ns
Figures 2, 4, RDIFF= 54 ,
|tRPLH-tRPHL|
CL1 = CL2 = 100pF
Maximum Data Rate, fMAX
250
kbps
SWITCHING CHARACTERISTICS
(VCC = +5V ±5%, TA = -40°C TO +85°C, UNLESS OTHERWISE NOTED)
Parameter
Min
Typ
Max
Units
Test Conditions/Comments
Driver Input to Output High, tDPLH
150
1200
ns
Figures 2, 3, RDIFF= 54 ,
CL1 = CL2 = 100pF
Driver Input to Output, tDPHL
150
1200
ns
Figures 2, 3, RDIFF= 54 ,
CL1 = CL2 = 100pF
Driver Output to Output, tSKEW
250
600
ns
Figures 2, 3, RDIFF= 54 ,
CL1 = CL2 = 100pF
Driver Rise or Fall Time, tDR, tDF
150
1200
ns
Figures 2, 3, RDIFF= 54 ,
CL1 = CL2 = 100pF
Driver Enable to Output High, tDZH
100
1500
ns
Figures 5, 6, CL = 100pF, S2 Closed
Driver Enable to Output Low, tDZL
100
1500
ns
Figures 5, 6, CL = 100pF, S1 Closed
Driver Disable Time from Low, tDLZ
150
1500
ns
Figures 5, 6, CL = l5pF, S1 Closed
PRELIMINARY TECHNICAL DATA


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