Low-Voltage, CMOS Analog

Multiplexers/Switches

14

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MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT SOCKET TERMINALS.

OFF-ISOLATION IS MEASURED BETWEEN COM AND "OFF" NO TERMINAL ON EACH SWITCH.

ON-LOSS IS MEASURED BETWEEN COM AND "ON" NO TERMINAL ON EACH SWITCH.

CROSSTALK (MAX4582/MAX4583) IS MEASURED FROM ONE CHANNEL (A, B, C) TO ALL OTHER CHANNELS.

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

VOUT

VIN

GND

VIN

VOUT

MEAS.

NETWORK

ANALYZER

50

Ω

50

Ω

50

Ω

OFF-ISOLATION = 20log

ON-LOSS = 20log

CROSSTALK = 20log

50

Ω

REF.

B

VOUT

VIN

VOUT

VIN

A

CHANNEL

SELECT

C

ENABLE

X_, Y_, Z_

X, Y, Z

10nF

10nF

MAX4581

MAX4582

MAX4583

Figure 6. Off Isolation, On Loss, and Crosstalk

GND

B

A

CHANNEL

SELECT

1MHz

CAPACITANCE

ANALYZER

C

ENABLE

X_, Y_, Z_

X, Y, Z

MAX4581

MAX4582

MAX4583

Figure 7. Capacitance

_________________________________Test Circuits/Timing Diagrams (continued)