Precision, Single-Supply,

SPST Analog Switches

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7

GND

NC

or NO

V+

IN

OFF

ON

OFF

Q = (

COM

IN DEPENDS ON SWITCH CONFIGURATION;

INPUT POLARITY DETERMINED BY SENSE OF SWITCH.

OFF

ON

OFF

IN

+5V

IN

MAX323

MAX324

MAX325

Figure 4. Charge Injection

tr < 20ns

tf < 20ns

50%

0V

LOGIC

INPUT

1k

Ω

NO

or NC

GND

(

)

SWITCH

INPUT

IN

+3V

0V

COM

SWITCH

OUTPUT

SWITCH

OUTPUT

LOGIC

INPUT

LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES

THAT HAVE THE OPPOSITE LOGIC SENSE.

V+

35pF

+5V

0V

MAX323

MAX324

MAX325

50%

+3V

0V

0V

LOGIC

INPUT

SWITCH

OUTPUT 2

0V

tD

tD

LOGIC

INPUT

300

Ω

GND

COM2

IN

COM1

V+

+5V

35pF

300

Ω

35pF

NO1

NC2

SWITCH

OUTPUT 1

MAX325

Figure 2. Switching Time

Figure 3. Break-Before-Make Interval (MAX325 only)

______________________________________________Test Circuits/Timing Diagrams