DG401 Datasheet, PDF (9/10 Pages) Intersil Corporation – Monolithic CMOS Analog Switches

Applications
DG401/403/405
+5 V +15 V
+5 V +15 V
V_L
V+
Left
S₁
D₁
V_L
V+
e_in
S₁
D₁
+
–
e_out
Source 1
Right
S₃
D₃
Left
S₃
D₃
Left
IN₁
IN₁
C₁
S₂
D₂
Integrate/
S₂
D₂
Source 2
Reset
Right
S₄
D₄
Right
TTL
S₄
D₄
TTL
Channel
Select
IN₂
DG403
GND V–
Slope
Select
C₂
IN₂
DG403
GND V–
–15 V
–15 V
Figure 9. Stereo Source Selector
Figure 10. Dual Slope Integrator
Stereo Source Selector:
A single logic signal controls the status of all four switches of
the device, simplifying stereo source switching.
The low on-resistance (<35 W) minimizes total harmonic
distortion.
Dual Slope Integrators:
e_in
The DG403 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.
Clock
+5 V +15 V
V_L
S₁
S₃
IN₁
S₂
S₄
V+
D₁
D₃
D₂
D₄
IN₂
DG403
GND V–
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 DG403 allow for
higher clock rates and consequently higher filter operating
frequencies.
Siliconix
S-53748—Rev. E, 05-Jun-97
–15 V
+
–
e_out
Figure 11. Band-Pass Switched Capacitor Filter
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