DG401B Datasheet, PDF (8/10 Pages) Vishay Siliconix – Low-Power, High-Speed CMOS Analog Switches

DG401B/403B/405B
Vishay Siliconix
APPLICATIONS
New Product
+15 V
Source 1
Source 2
Left
Right
Left
Right
TTL
Channel
Select
V+
S₁
D₁
S₃
D₃
IN₁
S₂
D₂
S₄
D₄
IN₂
DG403B
GND
V−
−15 V
Left
Right
FIGURE 9. Stereo Source Selector
+15 V
V+
e_in
S₁
D₁
+
−
e_out
S₃
D₃
IN₁
Integrate/
S₂
Reset
TTL
S₄
C₁
D₂
D₄
Slope
Select
C₂
IN₂
DG403B
GND
V−
−15 V
FIGURE 10. Dual Slope Integrator
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
e_in
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
Clock
rates and consequently higher filter operating frequencies.
+15 V
V+
S₁
D₁
S₃
D₃
IN₁
S₂
D₂
S₄
D₄
IN₂
DG403B
GND V−
−15 V
+
−
e_out
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8
FIGURE 11. Band-Pass Switched Capacitor Filter
Document Number: 73069
S-42444—Rev. A, 10-Jan-05