MAX1487E Просмотр технического описания (PDF) - Maxim Integrated
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производитель
MAX1487E
Maxim Integrated
MAX1487E Datasheet PDF : 16 Pages
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±15kV ESD-Protected, Slew-Rate-Limited,
Low-Power, RS-485/RS-422 Transceivers
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
MDEA,XD4I8,8R–—EE–/M=A0XV48o9r EV,CC
120
250
MDEA,XD4I9,0R–—EE–/M=A0XV49o1r EV,CC
300
500
No-Load Supply Current
(Note 3)
ICC
M–R—E–AX=408V1Eo/rMVACXC485E,
DE = VCC
DE = 0V
M–R—E–AX=104V87oEr,VCC
DE = VCC
DE = 0V
500
900
300
500
µA
300
500
230
400
Supply Current in Shutdown
ISHDN
MAX483E
M–R—E–AX=408V3Eo/rMVACXC487E, DE = VCC MAX487E
DE = 0V
MAX481E/483E/487E, DE = 0V, –R—E– = VCC
350
650
250
400
120
250
0.5
10
µA
Driver Short-Circuit Current,
VO = High
IOSD1 -7V ≤ VO ≤12V (Note 4)
35
250
mA
Driver Short-Circuit Current,
VO = Low
IOSD2 -7V ≤ VO ≤12V (Note 4)
35
250
mA
Receiver Short-Circuit Current
IOSR 0V ≤ VO ≤ VCC
7
95
mA
ESD Protection
A, B, Y and Z pins, tested using Human Body Model
±15
kV
SWITCHING CHARACTERISTICS—MAX481E/MAX485E, MAX490E/MAX491E, MAX1487E
(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Driver Input to Output
tPLH
tPHL
Figures 10 and 12, RDIFF = 54Ω,
CL1 = CL2 = 100pF
10
40
60
ns
10
40
60
Driver Output Skew to Output
tSKEW Figures 10 and 12, RDIFF = 54Ω, CL1 = CL2 = 100pF
5
10
ns
Driver Rise or Fall Time
Figures 10 and 12, MAX481E,MAX485E,MAX1487E 3
20
40
tR, tF RDIFF = 54Ω,
ns
CL1 = CL2 = 100pF MAX490EC/E, MAX491EC/E 5
20
25
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
tZH Figures 11 and 13, CL = 100pF, S2 closed
tZL Figures 11 and 13, CL = 100pF, S1 closed
tLZ Figures 11 and 13, CL = 15pF, S1 closed
tHZ Figures 11 and 13, CL = 15pF, S2 closed
45
70
ns
45
70
ns
45
70
ns
45
70
ns
Receiver Input to Output
Figures 10 and 14, MAX481E,MAX485E,MAX1487E 20
tPLH, tPHL RDIFF = 54Ω,
CL1 = CL2 = 100pF MAX490EC/E, MAX491EC/E 20
60
200
ns
60
150
| tPLH - tPHL | Differential
Receiver Skew
tSKD
Figures 10 and 14, RDIFF = 54Ω,
CL1 = CL2 = 100pF
5
ns
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable Time from Low
Receiver Disable Time from High
Maximum Data Rate
Time to Shutdown
tZL
tZH
tLZ
tHZ
fMAX
tSHDN
Figures 9 and 15, CRL = 15pF, S1 closed
Figures 9 and 15, CRL = 15pF, S2 closed
Figures 9 and 15, CRL = 15pF, S1 closed
Figures 9 and 15, CRL = 15pF, S2 closed
MAX481E (Note 5)
20
50
ns
20
50
ns
20
50
ns
20
50
ns
2.5
Mbps
50
200 600
ns
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