Low-Voltage, Combination Single-Ended

8-to-1/Differential 4-to-1 Multiplexer

10

______________________________________________________________________________________

Test Circuits/Timing Diagrams (continued)

50%

50%

V+

0V

0V

+5V

-5V

GND

V+

NLATCH

A1

V-

A0

EN

LATCH

A3

NO1

NO2–NO8

COMA

+3V

50

Ω

MAX4598

1k

35pF

A2

90%

90%

Figure 3. Enable Switching Time

V+

0V

LOGIC

INPUT

+5V

-5V

GND

V+

NLATCH

A1

V-

A0

EN

COMA

MAX4598

1nF

NO

CHANNEL

SELECT

OFF

ON

ON

ERROR Q WHEN THE CHANNEL TURNS OFF.

Q = (

A2

A3

Figure 4. Charge Injection

MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT SOCKET TERMINALS.

OFF-ISOLATION IS MEASURED BETWEEN COM AND “OFF” TERMINAL ON EACH SWITCH.

ON LOSS IS MEASURED BETWEEN COM AND “ON” TERMINAL ON EACH SWITCH.

NOTES:

+5V

V+

V+

GND

V-

LATCH

-5V

10nF

V-

A_

EN

NLATCH

NO_

COM_

MAX4598

OFF-ISOLATION = 20log

CROSSTALK = 20log

NETWORK

ANALYZER

50

Ω

50

Ω

50

Ω

50

Ω

MEAS.

REF

10nF

Figure 5. Off-Isolation/Crosstalk