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UM4157 Datasheet, PDF (6/10 Pages) Union Semiconductor, Inc. – 0.8Ω Low-Voltage SPDT Analog Switch
Test Circuits/Timing Diagrams
UM4157
Notes:
6.RL,RS,and CL are functions of the application environment.(see AC Electrical table for specific
values)
7. CL includes test fixture and stray capacitance.
Figure 6. Turn-Off Timing
VB
Control
Input
VCC
VCC
B0
A
B1
CL*
S
GND
VOUT
RL
Control
Input
VCC
0V
VOUT
50%
tr=tf=2.5ns(10-90%)
tBBM
0.9*VOUT
CL* includes fixture and stray capacitance
Figure 7. Break-Before-Make Timing
Figure 8. Off-Isolation
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http://www.union-ic.com Rev.01 Aug.2009
6/10