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Test circuits
Delay and rise time
Input
Z0 = 50 Ω
tr < 2ns
0
-16 V
200 ns
SMBT2907A/MMBT2907A
-30 V
200 Ω
Osc.
1 kΩ
tr < 5 ns
50 Ω
EHN00053
Storage and fall time
Input
Z0 = 50 Ω
tr < 2 ns
0
-30 V
200 ns
-6 V
+15 V
1 kΩ
1 kΩ
37 Ω
Osc.
tr < 5 ns
50 Ω
EHN00054
Oscillograph: R > 100Ω, C < 12pF, tr < 5ns
4
Jun-12-2002