MAX1487CSA Datasheet, PDF (3/17 Pages) Maxim Integrated Products – Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers

MAX481/MAX483/MAX485
MAX487–MAX491/MAX1487
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
DC ELECTRICAL CHARACTERISTICS (continued)
(V_CC = 5V ±5%, T_A = T_MIN to T_MAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
MAX488/MAX489,
DE, DI, RE = 0V or V_CC
120
250
MAX490/MAX491,
DE, DI, RE = 0V or V_CC
300
500
No-Load Supply Current
(Note 3)
MAX481/MAX485,
I_CC
RE = 0V or V_CC
MAX1487,
RE = 0V or V_CC
DE = V_CC
DE = 0V
DE = V_CC
DE = 0V
500
900
300
500
µA
300
500
230
400
Supply Current in Shutdown
I_SHDN
MAX483/MAX487,
RE = 0V or V_CC
DE = 5V
DE = 0V
MAX483
MAX487
MAX481/483/487, DE = 0V, RE = V_CC
350
650
250
400
120
250
0.1
10
µA
Driver Short-Circuit Current,
V_O = High
I_OSD1 -7V ≤ V_O ≤12V (Note 4)
35
250
mA
Driver Short-Circuit Current,
V_O = Low
I_OSD2 -7V ≤ V_O ≤12V (Note 4)
35
250
mA
Receiver Short-Circuit Current
I_OSR 0V ≤ V_O ≤ V_CC
7
95
mA
SWITCHING CHARACTERISTICS—MAX481/MAX485, MAX490/MAX491, MAX1487
(V_CC = 5V ±5%, T_A = T_MIN to T_MAX, unless otherwise noted.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
Driver Input to Output
t_PLH
t_PHL
Figures 6 and 8, R_DIFF = 54Ω,
C_L1 = C_L2 = 100pF
10
30
60
10
30
60
Driver Output Skew to Output
t_SKEW Figures 6 and 8, R_DIFF = 54Ω, C_L1 = C_L2 = 100pF
5
10
Driver Rise or Fall Time
Figures 6 and 8, ^{MAX481, MAX485, MAX1487 3}
t_R, t_F R_DIFF = 54Ω,
MAX490C/E, MAX491C/E
5
C_L1 = C_L2 = 100pF _{MAX490M, MAX491M}
3
15
40
15
25
15
40
Driver Enable to Output High
Driver Enable to Output Low
t_ZH Figures 7 and 9, C_L = 100pF, S2 closed
t_ZL Figures 7 and 9, C_L = 100pF, S1 closed
40
70
40
70
Driver Disable Time from Low
Driver Disable Time from High
t_LZ Figures 7 and 9, C_L = 15pF, S1 closed
t_HZ Figures 7 and 9, C_L = 15pF, S2 closed
40
70
40
70
Receiver Input to Output
Figures 6 and 10, ^{MAX481, MAX485, MAX1487 20}
t_PLH, t_PHL RDIFF = 54Ω,
MAX490C/E, MAX491C/E
20
C_L1 = C_L2 = 100pF _{MAX490M, MAX491M}
20
90
200
90
150
90
200
| t_PLH - t_PHL | Differential
Receiver Skew
t_SKD
Figures 6 and 10, R_DIFF = 54Ω,
C_L1 = C_L2 = 100pF
13
Receiver Enable to Output Low
t_ZL Figures 5 and 11, C_RL = 15pF, S1 closed
Receiver Enable to Output High t_ZH Figures 5 and 11, C_RL = 15pF, S2 closed
Receiver Disable Time from Low t_LZ Figures 5 and 11, C_RL = 15pF, S1 closed
20
50
20
50
20
50
Receiver Disable Time from High
Maximum Data Rate
Time to Shutdown
t_HZ
f_MAX
t_SHDN
Figures 5 and 11, C_RL = 15pF, S2 closed
MAX481 (Note 5)
20
50
2.5
50
200 600
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Mbps
ns
Maxim Integrated
3