Vi
90%
0
10%
tr
tp
VCC
R2
R1
Vi
Vo
D.U.T.
PZT2222AT1
Figure 1. Input Waveform and Test Circuit for Determining Delay Time and Rise Time
Vi = – 0.5 V to +9.9 V, VCC = +30 V, R1 = 619 Ω, R2 = 200 Ω.
PULSE GENERATOR:
PULSE DURATION
RISE TIME
DUTY FACTOR
tp ≤
tr ≤
δ=
200 ns
2 ns
0.02
OSCILLOSCOPE:
INPUT IMPEDANCE
INPUT CAPACITANCE
RISE TIME
Zi > 100 kΩ
Ci < 12 pF
tr < 5 ns
Vi
+16.2 V
VCC
R2
0
TIME
– 13.8 V
tf
100 µs
D.U.T.
R1
Vi
D1
VBB
R3
Vo
OSCILLOSCOPE
R4
Figure 2. Input Waveform and Test Circuit for Determining Storage Time and Fall Time
Motorola Small–Signal Transistors, FETs and Diodes Device Data
3