MUX508 Datasheet, PDF (16/37 Pages) Texas Instruments – Low-Capacitance, Low-Charge-Injection, Precision, Analog Multiplexers

MUX508, MUX509
SBAS758A – JANUARY 2016 – REVISED MARCH 2016
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8.4 On-Leakage Current
On-leakage current is defined as the leakage current that flows into or out of the drain pin when the switch is in
the on state. The source pin is left floating during the measurement. Figure 28 shows the circuit used for
measuring the on-leakage current, denoted by I_D(ON).
S
NC
ID (ON)
D
A
NC = No Connection
VD
Figure 28. On-Leakage Measurement Setup
8.5 Transition Time
Transition time is defined as the time taken by the output of the MUX50x to rise or fall to 90% of the transition
after the digital address signal has fallen or risen to the 50% of the transition. Figure 29 shows the setup used to
measure transition time, denoted by the symbol t_t.
VDD
VSS
3V
Address
Signal (VIN)
0V
50%
tt
VS1
Output
50%
VIN
tt
90%
VDD
VSS
S1
VS1
A0
A1
S2-S7
A2
S8
VS8
MUX508
Output
2V
EN
D
90%
VS8
GND
300 Ÿ
35 pF
Figure 29. Transition-Time Measurement Setup
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