DG506A_12 Datasheet, PDF (6/10 Pages) Maxim Integrated Products – Monolithic CMOS Analog Multiplexers

Monolithic CMOS Analog Multiplexers
Switching Time Test Circuits (continued)
+15V
LOGIC
INPUT
50Ω
V⁺
EN
S1
A3
S2 THRU S16
A2 _DG506A
A1
A0
GND
D
V^-
-5V
1kΩ
-15V
Figure 2a. Enable Switching Time
SWITCH
OUTPUT
VO
35pF
+15V
V⁺
EN
S_1b -5V
S1a THRU S4a, Da,
LOGIC
INPUT
A2
A1
S2b, S3b, S4b
DG507A
A0
GND
Db
V^-
50Ω
1kΩ
-15V
Figure 2b. Enable Switching Time
SWITCH
OUTPUT
VO
35pF
+2.4V
+15V
LOGIC
INPUT
V⁺
EN
ALL S AND Da
DG506A
DG507A
VS = +5V
A0 A1 A2 A3
GND
50Ω
Db, D
V-
1kΩ
SWITCH
OUTPUT
VO
35pF
-15V
Figure 3. Break-Before-Make
LOGIC INPUT
3V
tr < 20ns
50%
ti < 20ns
0
SWITCH OUTPUT
V_O
(SEE FIGURE 1)
TRANSITION
TIME
SWITCH OUTPUT
V_O
(SEE FIGURE 2)
ENABLE t_(ON)/t_(OFF)
TIME
VS1
0.8 VS1
0
0.8 VS8
VS8
ttransition
S1 ON
t_ON (En)
0
0.1 VO
0.9 V_O
VO
VS
S8 ON
t_transition
toff (En)
SWITCH OUTPUT
VS
VO
50%
(SEE FIGURE 3)
0V
OPEN TIME
BREAK-BEFORE-MAKE
INTERVAL
tOPEN
Figure 4. Timing Diagrams for Figures 1, 2, and 3
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