ISL32470E Datasheet, PDF (15/19 Pages) Intersil Corporation – Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers

ISL32470E, ISL32472E, ISL32475E, ISL32478E
Typical Performance Curves V_CC = 5V, T_A = +25°C; Unless Otherwise Specified. (Continued)
85
R_D = 54Ω, C_D = 50pF
80
4.0
R_D = 54Ω, C_D = 50pF
3.5
75
70
t_PLH
65
t_PHL
60
55
50
-40 -25
0
25
50
TEMPERATURE (°C)
75 85
FIGURE 18. DRIVER DIFFERENTIAL PROPAGATION DELAY vs
TEMPERATURE (ISL32475E)
3.0
2.5
|t_PLH - t_PHL|
2.0
-40 -25
0
25
50
TEMPERATURE (°C)
75 85
FIGURE 19. DRIVER DIFFERENTIAL SKEW vs TEMPERATURE
(ISL32475E)
27
R_D = 54Ω, C_D = 50pF
25
23
t_PLH
21
19
t_PHL
17
15
-40 -25
0
25
50
TEMPERATURE (°C)
75 85
FIGURE 20. DRIVER DIFFERENTIAL PROPAGATION DELAY vs
TEMPERATURE (ISL32478E)
3.4
R_D = 54Ω, C_D = 50pF
3.2
3.0
2.8
2.6
2.4
2.2
|t_PLH - t_PHL|
2.0
-40 -25
0
25
50
TEMPERATURE (°C)
75 85
FIGURE 21. DRIVER DIFFERENTIAL SKEW vs TEMPERATURE
(ISL32478E)
A
15
B
10
5
RO
0
V_ID = ±1V
A
15
B
10
5
RO
0
V_ID = ±1V
5
RO
0
-5
-10
A
-15
B
TIME (1µs/DIV)
FIGURE 22. RECEIVER PERFORMANCE WITH ±15V CMV
(ISL32470E, ISL32472E)
5
RO
0
-5
-10
A
-15
B
TIME (400ns/DIV)
FIGURE 23. RECEIVER PERFORMANCE WITH ±15V CMV
(ISL32475E)
15
FN7784.0
January 21, 2011