DG300B_11 Datasheet, PDF (8/14 Pages) Vishay Siliconix – CMOS Analog Switches

DG300B, DG301B, DG302B, DG303B
Vishay Siliconix
APPLICATIONS HINTS^a
V+
Positive Supply
Voltage
(V)
15
20
15
V-
Negative Supply
Voltage
(V)
- 15
- 20
0
GND
Voltage
(V)
0
0
0
V_IN
Logic Input Voltage
V_INH(min)/V_INL(max)
(V)
4/0.8
4/0.8
4/0.8
Notes:
a. Application hints are for DESIGN AID ONLY, not guaranteed and not subject to production testing.
V_S or V_D
Analog Voltage
Range
(V)
- 15 to 15
- 20 to 20
0 to 15
APPLICATIONS
The DG300B series of analog switches will switch positive
analog signals while using a single positive supply. This
facilitates their use in applications where only one supply is
available. The trade-offs of using single supplies are:
1) Increased R_DS(on).
2) Slower switching speed. The analog voltage should not go
above or below the supply voltages which in single
operation are V+ and 0 V. (See Input Switching Threshold
vs. Positive Supply Voltage Curve.)
+ 15 V
10 k
5 k
50 k
+ 15 V
10 µF
+ 15 V
5 k
100 k
DG301B
10 k
V_OUT
+5V
TTL Input
Figure 5. Single Supply Op. Amp. Switching
www.vishay.com
8
Document Number: 71402
S11-0303-Rev. C, 28-Feb-11