V

DD

V

DD

OUTPUT

C

L

SELx

SA

D

GND

0.1

F

V

OUT

Output

V

S

Q

C = CL ×

V

OUT

V

OUT

V

SEL

V

D

SB

N.C.

0 V

V

DD

VSEL

Figure 6-11. Charge Injection Measurement Setup

6.12 Bandwidth

Bandwidth is defined as the range of frequencies that are attenuated by less than 3dB when the input is applied

to the source pin (Sx) of an on-channel, and the output is measured at the drain pin (Dx) of the device. Figure

6-12 shows the setup used to measure bandwidth.

RL

CL

VDD

0.1 µF

GND

Output

VS

250 mV

0 V

tPD 1

Output

0 V

tProp Delay = max ( tPD 1, tPD 2)

Input

(VS)

tr < 40ps

tf < 40ps

tPD 2

50%

50%

50%

50%

50 Ω

RL

CL

Output

VS

50 Ω

D1

S1B

S1A

D2

S2B

S2A

Figure 6-12. Bandwidth Measurement Setup

6.13 Off Isolation

Off isolation is defined as the ratio of the signal at the drain pin (D) of the device when a signal is applied to

the source pin (Sx) of an off-channel. Figure 6-13 shows the setup used to measure, and the equation used to

calculate off isolation.

www.ti.com

TMUX2821, TMUX2819

SCDS488 – DECEMBER 2025

Copyright © 2025 Texas Instruments Incorporated

Submit Document Feedback

17

Product Folder Links: TMUX2821 TMUX2819