12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012

PS320/PS321/PS322

Precision, Dual-Supply Analog Switches

4

PS8183D

01/11/01

Test Circuits/Timing Diagrams

Figure 2. Switching Time

Figure 3. Break-Before-Make Interval (PS322 only)

Figure 4. Charge Injection

-5V

V-

+5V

NO

or NC

COM

V

COM = 3V

Logic

Input

IN

tr <20ns

tf <20ns

()

300

Ω

35pF

LOGIC INPUT WAVEFORMS INVERTED FOR

SWITCHES THAT HAVE OPPOSITE LOGIC

t

OFF

t

ON

V

OUT

90%

Logic

Input

Switch

Output

+5V

0V

0V

50%

90%

V+

NO1

NC2

-5V

V-

V

COM1

COM2

+3V

IN

+5V

+5V

0V

50%

90%

90%

90%

50%

Logic

Input

Logic

Input

35

0V

t

OUT2

300

INCLUDES FIXTURE AND STRAY CAPACITANCE.

D

tD

pF

V

35

OUT1

300

pF

V+

+5V

NO or

NC

-5V

COM

R

GEN

1nF

V

OUT

∆V

OUT

IN

V

GEN

ON

ON

OFF

OFF

OFF

OFF

IN

Q = (

∆V

IN

Logic

Input

IN POLARITY DEPENDS ON NO OR NC SWITCH FUNCTION