TMUX8211 datasheet(12/28 Pages) TI

12 / 28 page

7 Parameter Measurement Information

7.1 Truth Tables

Table 7-1, Table 7-2, and Table 7-3 show the truth tables for the TMUX8211, TMUX8212, and TMUX8213,

respectively.

Table 7-1. TMUX8211 Truth Table

SEL x

CHANNEL x

Channel x ON

Channel x OFF

Table 7-2. TMUX8212 Truth Table

SEL x

CHANNEL x

Channel x OFF

Channel x ON

Table 7-3. TMUX8213 Truth Table

SEL1 SEL2 SEL3 SEL4

ON / OFF CHANNELS

CHANNEL 1 ON

CHANNEL 1 OFF

CHANNEL 2 OFF

CHANNEL 2 ON

CHANNEL 3 OFF

CHANNEL 3 ON

CHANNEL 4 ON

CHANNEL 4 OFF

7.2 On-Resistance

The on-resistance of the TMUX821x is the ohmic resistance across the source (Sx) and drain (Dx) pins of

the device. The on-resistance varies with input voltage and supply voltage. The symbol RON is used to denote

on-resistance. Figure 7-1 shows the measurement setup used to measure RON. ΔRON represents the difference

between the RON of any two channels, while RON_FLAT denotes the flatness that is defined as the difference

between the maximum and minimum value of on-resistance measured over the specified analog signal range.

GND

Figure 7-1. On-Resistance Measurement Setup

TMUX8212

SCDS434 – OCTOBER 2021

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TMUX8211 Datasheet(PDF) 12 Page - Texas Instruments