High-Speed, Low-Voltage, CMOS Analog
Multiplexers/Switches
_________________________________Test Circuits/Timing Diagrams (continued)
V
CC
10nF
NETWORK
ANALYZER
V
IN
V
50Ω
50Ω
OUT
V
CC
OFF-ISOLATION = 20log
V
X_, Y_, Z_
A
B
C
IN
CHANNEL
SELECT
V
MAX4617
MAX4618
MAX4619
OUT
ON-LOSS = 20log
V
IN
V
OUT
MEAS.
REF.
ENABLE
X, Y, Z
V
OUT
CROSSTALK = 20log
GND
V
IN
50Ω
50Ω
NOTES: 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 (MAX4618/MAX4619) IS MEASURED FROM ONE CHANNEL (A, B, C) TO ALL OTHER CHANNELS.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Figure 6. Off-Isolation, On-Loss, and Crosstalk
78/MAX4619
V
CC
V
CC
X_, Y_, Z_
A
B
C
CHANNEL
SELECT
MAX4617
MAX4618
MAX4619
1MHz
ENABLE
X, Y, Z
CAPACITANCE
ANALYZER
GND
Figure 7. Capacitance
14 ______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
