ISL31470E_10 Datasheet, PDF (16/21 Pages) Intersil Corporation – Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers

ISL31470E, ISL31472E, ISL31475E, ISL31478E
Typical Performance Curves V_CC = 5V, T_A = +25°C; Unless Otherwise Specified. (Continued)
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 18. DRIVER DIFFERENTIAL SKEW vs TEMPERATURE (ISL31478E)
A
15
B
10
5
RO
0
VID = ±1V
A
15
B
10
5
RO
0
VID = ±1V
5
RO
0
-5
-10
A
-15
B
TIME (1μs / DIV)
FIGURE 19. ±15V RECEIVER PERFORMANCE
(ISL31470E, ISL31472E)
5
RO
0
-5
-10
A
-15
B
TIME (400ns / DIV)
FIGURE 20. ±15V RECEIVER PERFORMANCE
(ISL31475E)
A
15
B
10
5
RO
0
VID = ±1V
5
RO
0
-5
-10
A
-15
B
TIME (20ns / DIV)
FIGURE 21. ±15V RECEIVER PERFORMANCE
(ISL31478E)
DI
5
RO
0
R_D = 54Ω, C_D = 50pF
5
0
3
2
1
A/Y - B/Z
0
-1
-2
-3
TIME (1μs / DIV)
FIGURE 22. DRIVER AND RECEIVER WAVEFORMS
(ISL31470E, ISL31472E)
16
FN7639.0
June 17, 2010