DG309B Datasheet, PDF (5/8 Pages) Vishay Siliconix – Improved Quad CMOS Analog Switches

DG308B/309B
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Off Isolation vs. Frequency
120
V+ = 15 V
110
V– = –15 V
100
90
R_L = 50 W
80
70
60
50
40
10 k
100 k
1M
f – Frequency (Hz)
10 M
SCHEMATIC DIAGRAM (TYPICAL CHANNEL)
V+
IN_X
GND
V–
TEST CIRCUITS
Level
Shift/
Drive
FIGURE 1.
S_X
V–
V+
D_X
V_S = +3 V
12 V
+15 V
V+
S
D
IN
GND
V–
R_L
1 kW
V_O
C_L
35 pF
–15 V
V_O = V_S
R_L
R_L + r_DS(on)
Logic
Input
12 V
0V
Switch
Output
V_O
50%
t_r <20 ns
t_f <20 ns
90%
t_OFF
t_ON
Document Number: 70047
S-52896—Rev. E, 14-Jul-97
FIGURE 2. Switching Time
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