DG308A_08 Datasheet, PDF (5/6 Pages) Vishay Siliconix – Quad Monolithic SPST CMOS Analog Switches

DG308A/DG309
Vishay Siliconix
TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
10
8
T_A = 25 °C
7
8
6
V- = 0 V
T_A = 25 °C
5
6
4
4
3
2
2
1
0
0
±5
± 10
± 15
± 20
V+, V- Positive & Negative Supplies (V)
Input Switching Threshold
vs. V+ and V- Supply Voltages
0
0
5
10
15
V+ – Positive Supply Voltage (V)
Input Switching Threshold vs. Positive
Supply Voltage
TEST CIRCUITS
V_S = + 3 V
12 V
+ 15 V
V+
S
D
IN
GND
V-
- 15 V
V_O = V_S
12 V
Logic
Input
V_O
0V
R_L
C_L
1k
35 pF
Switch
Output
V_O
R_L
R_L + r_DS(on)
Figure 2. Switching Time
50 %
t_r < 20 ns
t_f < 20 ns
t_OFF
90 %
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.
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Tech-
nology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and reliability
data, see http://www.vishay.com/ppg?70046.
Document Number: 70046
S-71155–Rev. F, 11-Jun-07
www.vishay.com
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