DG540APSLASH883 datasheet(7/10 Pages) TEMIC

Teilenummer	DG540AP/883

Bauteilbeschribung	Wideband/Video T Switches

PDF	10 Pages

Scroll/Zoom	100%

Hersteller	TEMIC [TEMIC Semiconductors]

Direct Link	http://www.temic.de

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7 / 10 page

DG540/541/542

Siliconix

S-53694—Rev. E, 28-May-97

Test Circuits

Figure 2.

Switching Time

RL + rDS(on)

VO = VS

CL (includes fixture and stray capacitance)

V–

V+

35 pF

3 V

1 k

–3 V

GND

+15 V

3 V

90%

50%

tOFF

tON

tr <20 ns

tf <20 ns

Logic

Input

Switch

Input

Switch

Output

+15 V

Figure 3.

Charge Injection

OFF

DVO

INX

DVO = measured voltage error due to charge injection

The charge injection in coulombs is

DQ = CL x DVO

1000 pF

3 V

–3 V

GND

V+

V–

+15 V

Figure 4.

Off Isolation

Rg = 75 W

0 V, 2.4 V

Off Isolation = 20 log

V+

–3 V

GND

V–

+15 V

C = RF Bypass

Rg = 50 W

–3 V

GND

V+

V–

Figure 5.

Bandwidth

0 V, 2.4 V

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