Datasheet

SN74S1051
12-BIT SCHOTTKY BARRIER DIODE
BUS-TERMINATION ARRAY
SDLS018B – SEPTEMBER 1990 – REVISED MARCH 2003
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
90%
10%
DUT
t
r
V
FM
(See Note A) (See Note B)
50 Ω
450 Ω
Pulse
Generator
V
F
Sampling
Oscilloscope
Input Pulse
(See Note A)
Output
Waveform
(See Note B)
NOTES: A. The input pulse is supplied by a pulse generator having the following characteristics: t
r
= 20 ns, Z
O
= 50 Ω, freq = 500 Hz,
duty cycle = 1%.
B. The output waveform is monitored by an oscilloscope having the following characteristics: t
r
≤ 350 ps, R
i
= 50 Ω, C
i
≤ 5 pF.
Figure 1. Forward Recovery Voltage
I
F
DUT
90%
10%
t
f
I
f
Pulse
Generator
(See Note A)
(See Note B)
I
R(REC)
t
rr
I
RM(REC)
Sampling
Oscilloscope
Input Pulse
(See Note A)
Output
Waveform
(See Note B)
0
NOTES: A. The input pulse is supplied by a pulse generator having the following characteristics: t
f
= 0.5 ns, Z
O
= 50 Ω, t
w
≥ 50 ns,
duty cycle = 1%.
B. The output waveform is monitored by an oscilloscope having the following characteristics: t
r
≤ 350 ps, R
i
= 50 Ω, C
i
≤ 5 pF.
Figure 2. Reverse Recovery Time