AS1744, AS1745
Data Sheet
Figure 14. NOx, NCx, and COMx Capacitance
V+
10nF
AS1744/
AS1745
V+
COMx
VINH or
VINL
INx
GND
NCx or
NOx
austriamicrosystems
Timing Diagrams and Test Setups
1MHz
Capacitance
Analyzer
Figure 15. Off-Isolation, On-Loss, and Crosstalk
V+
10nF
V+
50Ω
COMx
V+
AS1744/
AS1745
NCx
NOx
INx
GND
VIN
VOUT
Network Analyzer
50Ω
50Ω
Measure
Reference
50Ω
50Ω
Notes:
1. Measurements are standardized against short-circuit at all terminals.
2. Off-isolation is measured between COMx and the off NCx/NOx terminal of each switch. Off-isolation =
20log(VOUT/VIN).
3. Crosstalk is measured from one channel to all other channels.
4. Signal direction through the switch is reversed; worst values are recorded.
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