ISO7420 Datasheet, PDF (14/19 Pages) Texas Instruments – Low-Power Dual Digital Isolators

ISO7420, ISO7420M
ISO7421, ISO7421M
SLLS984A – JUNE 2009 – REVISED DECEMBER 2009
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TYPICAL CHARACTERISTICS (continued)
FAIL-SAFE VOLTAGE THRESHOLD
vs
FREE-AIR TEMPERATURE
2.62
2.61
2.60
FS+
2.59
2.58
2.57
2.56
2.55
FS−
2.54
2.53
2.52
−55 −35 −15 5
25 45 65 85 105 125
HIGH-LEVEL OUTPUT CURRENT
vs
HIGH-LEVEL OUTPUT VOLTAGE
0
−10 ^{TA = 25°C}
−20
−30
−40
−50
V_CC1, V_CC2 at 3.3 V
−60
−70
V_CC1, V_CC2 at 5 V
−80
−90
0
1
2
3
4
5
6
T_A − Free-Air Temperature − °C
G006
Figure 12.
V_OH − High-Level Output Voltage − V
G007
Figure 13.
LOW-LEVEL OUTPUT CURRENT
vs
LOW-LEVEL OUTPUT VOLTAGE
80
T_A = 25°C
70
60
V_CC1, V_CC2 at 5 V
50
40
30
V_CC1, V_CC2 at 3.3 V
20
10
0
0
1
2
3
4
5
V_OL − Low-Level Output Voltage − V
Figure 14.
6
G008
Figure 15. Eye Diagram at 250 MBPS, 5-V V_CC, Typical
Figure 16. Eye Diagram at 200 MBPS, 5-V V_CC, 125°C
14
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