MAX4684-MAX4685 Maxim, MAX4684-MAX4685 Datasheet - Page 8

• Manufacturer Part Number: MAX4684-MAX4685
• Description: 0.5 /0.8 Low-Voltage / Dual SPDT Analog Switches in UCSP
• Manufacturer: Maxim

0.5 Ω /0.8 Ω Low-Voltage, Dual SPDT
Analog Switches in UCSP
Figure 4. Charge Injection
Figure 5. On-Loss, Off-Isolation, and Crosstalk
Figure 6. Channel Off/On-Capacitance
8
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CAPACITANCE
MAX4684
MAX4685
f = 1MHz
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN COM_ AND "OFF" NO_ OR NC_ TERMINAL ON EACH SWITCH.
ON-LOSS IS MEASURED BETWEEN COM_ AND "ON" NO_ OR NC_ TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO ALL OTHER CHANNELS.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
METER
V
GEN
50Ω
0V OR V+
R
GEN
IN_
NC_
10nF
OR NO_
NC_
COM_
NC_ or
NO_
GND
MAX4684
MAX4685
GND
V+
V+
+5V
GND
V+
10nF
IN_
MAX4684
MAX4685
V
COM
IL
NO
TO V
COM_
V+
V+
IH
IN
V
OR
V
V
V
IL
IH
IN
OUT
Test Circuits/Timing Diagrams (continued)
C
L
V
OUT
MEAS
50Ω
50Ω
ANALYZER
NETWORK
V
OUT
IN
IN
Pin Configurations (continued)
TOP VIEW
50Ω
OFF
OFF
50Ω
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
REF
COM1
NO1
NC1
IN1
V+
Q = (∆V
1
2
3
4
5
MAX4684/MAX4685
3 3 THIN QFN
ON
ON
OUT
OFF-ISOLATION = 20log
)(C
CROSSTALK = 20log
L
)
ON-LOSS = 20log
∆V
10
OUT
9
8
7
6
OFF
OFF
NO2
COM2
IN2
NC2
GND
V
V
V
V
V
V
OUT
OUT
OUT
IN
IN
IN