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7.3 Off-Leakage Current

There are two types of leakage currents associated with a switch during the off state:

1. Source off-leakage current IS(OFF): the leakage current flowing into or out of the source pin when the switch

is off.

2. Drain off-leakage current ID(OFF): the leakage current flowing into or out of the drain pin when the switch is

off.

The setup used to measure both off-leakage currents is shown in Figure 7-2.

Is (OFF)

VDD

VSS

GND

IS(OFF)

Is (OFF)

GND

VDD

VSS

GND

ID(OFF)

GND

ID (OFF)

Figure 7-2. Off-Leakage Measurement Setup

7.4 On-Leakage Current

Source on-leakage current (IS(ON)) and drain on-leakage current (ID(ON)) denote the channel leakage currents

when the switch is in the on state. IS(ON) is measured with the drain floating, while ID(ON) is measured with the

source floating. Figure 7-3 shows the circuit used for measuring the on-leakage currents.

Is (OFF)

VDD

VSS

GND

IS(ON)

Is (OFF)

GND

N.C.

ID (OFF)

VDD

VSS

GND

ID(ON)

ID (OFF)

GND

N.C.

Figure 7-3. On-Leakage Measurement Setup

7.5 Device Turn On Time

Turn-on time (tON) is defined as the time taken by the output of the TMUX8211, TMUX8212, and TMUX8213

to rise to a 90% final value after the SELx signal has risen (for NC switches) or fallen (for NO switches) to a

50% final value. Turn off time (tOFF) is defined as the time taken by the output of the TMUX8211, TMUX8212,

and TMUX8213 to fall to a 10% initial value after the SELx signal has fallen (for NC switches) or risen (for NO

switches) to a 50% initial value. Figure 7-4 shows the setup used to measure tON and tOFF.

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TMUX8212

SCDS434 – OCTOBER 2021

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