TMUX7308F datasheet(21/34 Pages) TI

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14.4 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 14-3 shows the circuit used for measuring the on-leakage currents.

GND

IS(ON)

GND

N.C.

GND

ID(ON)

GND

N.C.

VDD

VSS

VDD

VSS

Figure 14-3. On-Leakage Measurement Setup

14.5 Break-Before-Make Delay

The break-before-make delay is a safety feature of the TMUX7308F and TMUX7309F. The ON switches first

break the connection before the OFF switches make connection. The time delay between the break and the

make is known as break-before-make delay. Figure 14-4 shows the setup used to measure break-before-make

delay, denoted by the symbol tBBM.

3 V

0 V

tBBM 1

0.8 VS

Output

0 V

tBBM = min ( tBBM 1, tBBM 2)

tBBM 2

tr < 20 ns

tf < 20 ns

GND

Decoder

GND

VEN

VDD

VSS

VDD

VSS

GND

0.1 µF

GND

0.1 µF

Figure 14-4. Break-Before-Make Delay Measurement Setup

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TMUX7308F, TMUX7309F

SCDS403 – FEBRUARY 2021

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