DG308A Datasheet, PDF (5/5 Pages) Intersil Corporation – Quad Monolithic SPST, CMOS Analog Switch

TEST CIRCUITS
DG308A/DG309
Vishay Siliconix
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
FIGURE 2. Switching Time
50%
t_r <20 ns
t_f <20 ns
90%
t_OFF
t_ON
APPLICATIONS
Single Supply Operation
The DG308A and DG309 will switch positive analog signals
while using a single positive supply. This will allow use in many
applications where only one supply is available. The trade-offs
or performance given up while using single supplies are:
1) increased r_DS(on) and 2) slower switching speed. As stated
in the absolute maximum ratings section of the data sheet, the
analog voltage should not go above or below the supply
voltages which in single supply operation are V+ and 0 V.
Document Number: 70046
S-52882—Rev. E, 28-Apr-97
www.vishay.com S FaxBack 408-970-5600
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