DG508A Datasheet, PDF (7/11 Pages) Maxim Integrated Products – Monolithic CMOS Analog Multiplexers

Monolithic CMOS Analog Multiplexers
LOGIC
INPUT
+2.4V
EN
+15V
DG508A
DG509A
ALL S
+5V
AND DA
A0, A1, (A2)
GND
50Ω
DB, D
V-
-15V
SWITCH
OUTPUT
V_D
1kΩ
35pF
Figure 3. Break-Before-Make Test Circuit
LOGIC INPUT
3V
t_r < 20ns
50%
t_f < 20ns
0
SWITCH
OUTPUT
V_D
(SEE FIG. 1)
TRANSITION
TIME
V_S1
0.8V_S1
0
0.8V_S8
V_S8
t_transition
S₁ON
0
SWITCH
OUTPUT
0.1V₀
V_D
(SEE FIG. 2)
TENABLE t_(ON) t_(OFF)
TIME
0.9V₀
V₀
V_S
SWITCH
V_S
OUTPUT
50%
V_D
(SEE FIG. 3)
OPEN TIME
0V
(B.B.M INTERVAL)
S₈ON
t_ON
(EN)
t_open
Figure 4. Timing Diagram for Figures 1, 2, and 3
t_transition
t_OFF
(EN)
Table 1a. DG508A Truth Table
A2
A1
X
X
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
X = Don’t care.
A0
EN
ON SWITCH
X
0
NONE
0
1
1
1
1
2
0
1
3
1
1
4
0
1
5
1
1
6
0
1
7
1
1
8
Table 1 b. DG509A Truth Table
A1
A0
X
X
0
0
0
1
1
0
1
1
X = Don’t care.
EN
ON SWITCH
0
NONE
1
1
1
2
1
3
1
4
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