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)