DG444BDY datasheet(5/7 Pages) VISHAY

Part #	DG444BDY

Description	Improved Quad SPST CMOS Analog Switches

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Manufacturer	VISHAY [Vishay Siliconix]

Direct Link	http://www.vishay.com

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5 / 7 page

DG444B/445B

Vishay Siliconix

New Product

Document Number: 72626

S-32554—Rev. A, 15-Dec-03

www.vishay.com

5

SCHEMATIC DIAGRAM (TYPICAL CHANNEL)

FIGURE 1.

Level

Shift/

Drive

VIN

VL

S

V+

GND

V−

D

V−

V+

TEST CIRCUITS

FIGURE 2. Switching Time

FIGURE 3. Charge Injection

0 V

Logic

Input

Switch

Input

Switch

Output

3 V

50%

0 V

VO

VS

tr <20 ns

tf <20 ns

tOFF

tON

Note:

Logic input waveform is inverted for DG445.

OFF

ON

OFF

ON

OFF

VO

DVO

INX

Q = DVO x CL

(DG444B)

(DG445B)

50%

80%

"10 V

CL (includes fixture and stray capacitance)

V−

VL

IN

S

D

3 V

RL

1 kW

CL

35 pF

VO

−15 V

GND

+5 V

CL

1 nF

IN

D

VO

V−

V+

S

3 V

Vg

Rg

−15 V

GND

+15 V

V+

+15 V

VL

+5 V

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DG444BDY Datasheet(PDF) 5 Page - Vishay Siliconix

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