DG441L(2003) Ver la hoja de datos (PDF) - Vishay Semiconductors

Número de pieza

componentes Descripción

Fabricante

DG441L
(Rev.:2003)

Precision Monolithic Quad SPST Low-Voltage CMOS Analog Switches

Vishay Semiconductors 

APPLICATIONS

+12 V

IN

+12 V

DG442L V+

GND V -

0 = Load Off

1 = Load On

150 W

+24 V

RL

I = 3A

VN0300L, M

10 kW

+12 V

VIN

+

-

IN

DG441L/442L

Vishay Siliconix

+12 V

1/4 DG442L

S

D

CH +

-

VOUT

0V

H = Sample

L = Hold

FIGURE 7. Power MOSFET Driver

FIGURE 8. Open Loop Sample-and-Hold

VIN

GAIN1

AV = 1

GAIN2

AV = 10

GAIN3

AV = 20

GAIN4

AV = 100

+

-

+12 V

V+

DG441L or DG442L

V-

GND

)V

VOUT

Gain error is determined only by the resistor

tolerance. Op amp offset and CMRR will limit ac-

curacy of circuit.

R1

90 kW

R2

5 kW

R3

4 kW

R4

1 kW

With SW4 Closed

VOUT =

VIN

R1 + R2 + R3 + R4

R4

= 100

FIGURE 9. Precision-Weighted Resistor Programmable-Gain Amplifier

Document Number: 71399

S-03294—Rev. D, 17-Mar-03

www.vishay.com

9

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