DG401B_11 Datasheet, PDF (9/14 Pages) Vishay Siliconix – Low-Power, High-Speed CMOS Analog Switches

APPLICATIONS
DG401B, DG403B, DG405B
Vishay Siliconix
+ 15 V
Source 1
Source 2
Left
Right
Left
Right
V+
S₁
D₁
S₃
D₃
IN₁
S₂
D₂
S₄
D₄
Left
Right
TTL
Channel
Select
IN₂
DG403B
GND
V-
- 15 V
Figure 9. Stereo Source Selector
Dual Slope Integrators
The DG403B is well suited to configure a selectable slope
integrator. One control signal selects the timing capacitor C₁
or C₂. Another one selects e_in or discharges the capacitor in
preparation for the next integration cycle.
Band-Pass Switched Capacitor Filter
Single-pole double-throw switches are a common element
for switched capacitor networks and filters. The fast
switching times and low leakage of the DG403B allow for
higher clock rates and consequently higher filter operating
frequencies.
e_in
Integrate/
Reset
TTL
Slope
Select
+ 15 V
V+
S₁
D₁
+
-
e_out
S₃
D₃
IN₁
C₁
S₂
D₂
S₄
D₄
C₂
IN₂
DG403B
GND
V-
- 15 V
Figure 10. Dual Slope Integrator
e_in
Clock
+ 15 V
V+
S₁
D₁
S₃
D₃
IN₁
S₂
D₂
S₄
D₄
IN₂
DG403B
GND V-
- 15 V
+
-
e_out
Figure 11. Band-Pass Switched Capacitor Filter
Document Number: 73069
S11-0179-Rev. B, 07-Feb-11
www.vishay.com
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