Precision, CMOS Analog Switches

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7

_____________________________________________________Test Circuits/Timing Diagrams

50%

0V

LOGIC

INPUT

V-

-15V

300

Ω

NC

OR NO

GND

(

)

SWITCH

INPUT

IN

+3V

0V

COM

SWITCH

OUTPUT

0.9V0

0.9V0

SWITCH

OUTPUT

SWITCH

INPUT

LOGIC

INPUT

LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES

THAT HAVE THE OPPOSITE LOGIC SENSE.

VL

V+

35pF

+5V

+15V

MAX317

MAX318

50%

0V

LOGIC

INPUT

V-

-15V

1000

Ω

COM

GND

LOGIC

INPUT

NC

IN

+3V

V+

NO

SWITCH

OUTPUT

VL

MAX319

+15V

+5V

35pF

Figure 2. MAX317/MAX318 Switching-Time Test Circuit

Figure 3. MAX319 Transition Time