VIH

VIL

tTRANSITION

10%

90%

OUTPUT

0 V

ADDRESS

DRIVE

(VSEL)

VDD

tTRANSITION

VS

OUTPUT

RL

CL

SELx

D

GND

VSEL

0 V

tr < 5 ns

tf < 5 ns

VDD

VDD

0.1 F

SA

SB

Figure 14-7. Transition-Time Measurement Setup

14.8 Break-Before-Make

Break-before-make delay is a safety feature that prevents two inputs from connecting when the device is

switching. The output first breaks from the on-state switch before making the connection with the next on-state

switch. The time delay between the break and the make is known as break-before-make delay. Figure 14-8

shows the setup used to measure break-before-make delay, denoted by the symbol tOPEN(BBM).

VDD

0 V

tBBM 1

90%

Output

0 V

tOPEN (BBM) = min ( tBBM 1, tBBM 2)

tBBM 2

ADDRESS

DRIVE

(VSEL)

tr < 5 ns

tf < 5 ns

VS

OUTPUT

RL

CL

SELx

D

GND

VSEL

VDD

VDD

0.1 F

SA

SB

Figure 14-8. Break-Before-Make Delay Measurement Setup

14.9 THD + Noise

The total harmonic distortion (THD) of a signal is a measurement of the harmonic distortion, and is defined as

the ratio of the sum of the powers of all harmonic components to the power of the fundamental frequency at the

mux output. The on-resistance of the device varies with the amplitude of the input signal and results in distortion

when the drain pin is connected to a low-impedance load. Total harmonic distortion plus noise is denoted as

THD + N.

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TMUX4821, TMUX4819

SCDS487A – OCTOBER 2025 – REVISED DECEMBER 2025

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