UM3156_14 Datasheet, PDF (6/9 Pages) Union Semiconductor, Inc. – Low-Voltage SPDT Analog Switch

UM3156
Generator
VS
RS
GND
VIN nBn
VCC
Input-Vsel
Off
VOUT
CL*
nSn
GND
Vsel
CL* includes fixture and stray capacitance
GND
0V
VOUT
Figure 5. Charge Injection Test
On
Off
Q=ΔVOUT*CL
ΔVOUT
Vsel
GND
Off-isolation=20Log(V_OUT/V_IN)
RT
GND
GND
GND
Figure 6. Off-Isolation
Network Analyzer
RS
VIN
VS
GND
VOUT
RT
GND
Vsel
GND
RT
GND
RS and RT are functions of the application
environment (50, 75 or 100)
GND
GND
Network Analyzer
RS
VIN
VS
GND
VOUT
RT
GND
Crosstalk=20Log(V_OUT/V_IN)
Figure 7. Non-Adjacent Channel-to-Channel Crosstalk
Capacitance
Meter
f=1MHz
A
A
S
Vsel=0 or Vcc
Capacitance
Meter
S
Vsel=0 or Vcc
Bn
f=1MHz
Bn
Channel On Capacitance
Channel Off Capacitance
Figure 8. On/Off Capacitance Measurement Setup
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http://www.union-ic.com Rev.02 Dec.2014
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