DG412AK 데이터 시트보기 (PDF) - Vishay Semiconductors
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DG412AK Datasheet PDF : 8 Pages
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DG411/412/413
Vishay Siliconix
TEST CIRCUITS
VS
Rg = 50 W
0V, 2.4 V
+5 V
C
VL
S
IN
GND
+15 V
C
V+
D
VO
V–
C
RL
50 W
–15 V
VS
Off Isolation = 20 log
VO
C = RF Bypass
FIGURE 6. Off Isolation
+5 V
C
VL
+15 V
C
V+
S
IN
0 V, 2.4 V
GND
D
V–
C
Meter
HP4192A
Impedance
Analyzer
or Equivalent
–15 V
FIGURE 7. Source/Drain Capacitances
APPLICATIONS
Single Supply Operation:
The DG411/412/413 can be operated with unipolar supplies
from 5 V to 44 V. These devices are characterized and tested
for unipolar supply operation at 12 V to facilitate the majority of
applications. In single supply operation, V+ is tied to VL and V–
is tied to 0 V. See Input Switching Threshold vs. Supply
Voltage curve for VL versus input threshold requirments.
Summing Amplifier
When driving a high impedance, high capacitance load such
as shown in Figure 8, where the inputs to the summing
amplifier have some noise filtering, it is necessary to have
shunt switches for rapid discharge of the filter capacitor, thus
preventing offsets from occurring at the output.
VIN 1
VIN 2
www.vishay.com S FaxBack 408-970-5600
4-8
R1
R2
C1
R3
R4
DG413
C2
R6
FIGURE 8. Summing Amplifier
R5
–
+
VOUT
Document Number: 70050
S-52433—Rev. D, 06-Sep-99
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