TMUX7411F datasheet(20/30 Pages) TI

Teilenummer	TMUX7411F

Bauteilbeschribung	TMUX741xF 짹60 V Fault-protected, 1:1 (SPST), 4-Channel Switches with 1.8-V Logic

PDF	30 Pages

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Hersteller	TI [Texas Instruments]

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8.8 Charge Injection

Charge injection is a measure of the glitch impulse transferred from the digital input to the analog output during

switching, and is denoted by the symbol QINJ. Figure 8-8 shows the setup used to measure charge injection from

the source to drain.

VOUT

Output

0 V

3 V

VSELx

QINJ = CL ×

VOUT

tr < 20 ns

tf < 20 ns

GND

Output

VDD

VSS

VDD

VSS

GND

0.1 µF

GND

0.1 µF

SELx

VSELx

Figure 8-8. Charge-Injection Measurement Setup

8.9 Off Isolation

Off isolation is defined as the voltage at the drain pin (Dx) of the device when a 1-VRMS signal is applied to the

source pin (Sx) of an OFF switch. Figure 8-9 shows the setup used to measure off isolation.

SELx

GND

VSELx

VOUT

50Ÿ

Network Analyzer

1BB +OKH=PEKJ = 20 × .KC

8176

VDD

VSS

VDD

VSS

GND

0.1 µF

GND

0.1 µF

50Ÿ

Other

Sx/ Dx

pins

Figure 8-9. Off Isolation Measurement Setup

TMUX7411F, TMUX7412F, TMUX7413F

SCDS404 – MARCH 2021

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