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8

Document Number: 70050

S-71241–Rev. E, 25-Jun-07

Vishay Siliconix

DG411/412/413

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

and V- is tied to 0 V. See Input Switching Threshold vs.

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.

Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon

Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and

Figure 6. Off Isolation

50

Ω

D

0 V, 2.4 V

V+

- 15 V

GND

V-

C

Off Isolation = 20 log

IN

+ 5 V

C

+ 15 V

S

C

C = RF Bypass

Figure 7. Source/Drain Capacitances

D

IN

S

V+

- 15 V

GND

V-

C

0 V, 2.4 V

Meter

HP4192A

Impedance

Analyzer

or Equivalent

+ 5 V

C

+ 15 V

C

Figure 8. Summing Amplifier

+

–

DG413