Precision, 4-Channel/Dual 2-Channel,

Low-Voltage, CMOS Analog Multiplexers

10

______________________________________________________________________________________

+3V

0V

LOGIC

INPUT

+5V

-5V

GND

V+

A1

V-

A0

EN

COM

MAX4518

MAX4519

NO

CHANNEL

SELECT

ON

OFF

OFF

ERROR Q WHEN THE CHANNEL TURNS OFF.

Q =

Figure 5. Charge Injection

_________________________________Test Circuits/Timing Diagrams (continued)

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.

CROSSTALK IS MEASURED BETWEEN COMA AND COMB

TERMINALS ON EACH DEVICE.

SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.

NOTES:

V+

V+

V+

GND

V-

V-

V+

A

EN

NO

COM

MAX4518

MAX4519

OFF ISOLATION = 20log

ON LOSS = 20log

CROSSTALK = 20log

NETWORK

ANALYZER

50

Ω

50

Ω

50

Ω

50

Ω

MEAS.

REF

10nF

10nF

+5V

-5V

GND

V+

A2

V-

A1

A0

NO8

MAX4518

MAX4519

CHANNEL

SELECT

NO1

COM

EN

1MHz

CAPACITANCE

ANALYZER

f = 1MHz

Figure 6. Off Isolation, On Loss, Crosstalk

Figure 7. NO/COM Capacitance