DG201AMIL datasheet(6/9 Pages) VISHAY

6 / 9 page

DG201A_MIL/202_MIL

Vishay Siliconix

www.vishay.com

S FaxBack 408-970-5600

4-6

Document Number: 70036

S-00405—Rev. G, 21-Feb-00

TEST CIRCUITS

FIGURE 2. Switching Time

FIGURE 3. Off Isolation

50%

0 V

3 V

tOFF

tON

tr <20 ns

tf <20 ns

Logic

Input

Switch

Output

90%

35 pF

1 k

VO = VS

RL + rDS(on)

VS = +2 V

V–

V+

3 V

–15 V

GND

+15 V

Rg = 50 W

0V, 2.4 V

Off Isolation = 20 log

V+

–15 V

GND

V–

+15 V

IN1

0V, 2.4 V

+15 V

–15 V

GND

V+

V–

XTALK Isolation = 20 log

0V, 2.4 V

IN2

Rg = 50 W

C = RF bypass

FIGURE 4. Channel-to-Channel Crosstalk

FIGURE 5. Charge Injection

1000 pF

3 V

V+

V–

–15 V

GND

+15 V

DVO

INX

OFF

DVO = measured voltage error due to charge injection

The charge injection in coulombs is Q = CL x DVO

VO is the steady state output with switch on. Feedthrough via gate capacitance may result in spikes at leading and trailing edge of output waveform.

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