DG401/403/405
Vishay Siliconix
Document Number: 70049
S-52433—Rev. F, 06-Sep-99
www.vishay.com FaxBack 408-970-5600
4-9
DG403
Right
Right
Left
Left
Channel
Select
Source 1
Source 2
TTL
Left
Right
–15 V
+15 V+5 V
GND V–
V+
S
1
IN
2
S
3
S
2
S
4
D
1
D
3
D
2
D
4
V
L
IN
1
DG403
Integrate/
Reset
Slope
Select
TTL
+
–
–15 V
+15 V+5 V
GND V–
V+
S
1
IN
2
S
3
S
2
S
4
D
1
D
3
D
2
D
4
V
L
IN
1
C
1
C
2
e
out
e
in
FIGURE 9. Stereo Source Selector FIGURE 10.Dual Slope Integrator
Dual Slope Integrators:
The DG403 is well suited to configure a selectable slope
integrator. One control signal selects the timing capacitor C
1
or
C
2
. 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 DG403 allow for higher clock
rates and consequently higher filter operating frequencies.
–15 V
+15 V+5 V
GND V–
V+
Clock
+
–
V
L
e
out
e
in
DG403
S
1
IN
2
S
3
S
2
S
4
D
1
D
3
D
2
D
4
IN
1
FIGURE 11.Band-Pass Switched Capacitor Filter
