MAX1480E Datasheet, PDF (3/19 Pages) Maxim Integrated Products – 15kV ESD-Protected, Isolated RS-485/RS-422

±15kV ESD-Protected, Isolated RS-485/RS-422
Data Interfaces
ELECTRICAL CHARACTERISTICS (continued)
(V_{CC_} = +5V ±10%, V_FS = V_{CC_}, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at V_{CC_} = +5V and T_A = +25°C.)
(Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Change in Magnitude of
Driver Output Voltage for
Complementary Output States
∆V_OD
R = 27Ω or 50Ω, Figure 4
Differential
Common mode
0.3
V
0.3
Driver Common-Mode Output
V_OC
Input Current (A, B)
ISO I_IN
Receiver Input Resistance
R_IN
Receiver Differential Threshold
Receiver Input Hysteresis
Receiver Output Low Voltage
Receiver Output High Current
Driver Short-Circuit Current
V_TH
∆V_TH
V_OL
I_OH
ISO I_OSD
ESD Protection
ISO I_OSD
R = 27Ω or 50Ω, Figure 4
MAX1490EA/
MAX1490EB
V_IN = +12V _MAX1480EA/
DE´ = 0,
MAX1480EC
V_{CC_} = 0 or +5.5V
MAX1490EA/
MAX1490EB
V_IN = -7V _MAX1480EA/
MAX1480EC
-7V ≤ V_CM ≤ +12V
(MAX1480E_)
(MAX1490E_)
-7V ≤ V_CM ≤ +12V
V_CM = 0
Using resistor values listed in Tables 1 and 2
V_OUT = 5.5V
-7V ≤ V_O ≤ 12V (Note 5)
A, B, Y, and Z pins, tested using Human Body
Model, Figures 1 and 2
4
V
1.0
0.25
mA
0.8
0.2
48
kΩ
12
-0.2
0.2
V
70
mV
0.4
V
250 µA
100
mA
±15
kV
SWITCHING CHARACTERISTICS—MAX1480EA/MAX1490EA
(V_{CC_} = +5V ±10%, V_FS = V_{CC_}, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at V_{CC_} = +5V and T_A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Driver Input to Output
Propagation Delay
Driver Output Skew
Driver Rise or Fall Time
t_PLH
t_PHL
t_SKEW
t_R, t_F
Figures 5 and 7, R_DIFF = 54Ω,
C_L1 = C_L2 = 100pF
Figures 5 and 7, R_DIFF = 54Ω, C_L1 = C_L2 = 100pF
Figures 5 and 7, R_DIFF = 54Ω, C_L1 = C_L2 = 100pF
90 275
ns
60 275
30 100 ns
15
50
ns
Driver Enable to Output High
(MAX1480EA Only)
t_ZH
Figures 6 and 8, C_L = 100pF, S2 closed
1.0
1.8
µs
Driver Enable to Output Low
(MAX1480EA Only)
t_ZL
Figures 6 and 8, C_L = 100pF, S1 closed
1.0
1.8
µs
Driver Disable Time from Low
(MAX1480EA Only)
t_LZ
Figures 6 and 8, C_L = 15pF, S1 closed
0.5
1.8
µs
Driver Disable Time from High
(MAX1480EA Only)
t_HZ
Figures 6 and 8, C_L = 15pF, S2 closed
Receiver Input to Output
Propagation Delay
t_PLH
t_PHL
Figures 5 and 10, R_DIFF = 54Ω, C_L1 = C_L2 = 100pF
0.5
1.8
µs
120 225
ns
90 225
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