TMUX4052: Support differential signal

Jimmy WANG

Genius 3725 points

Part Number: TMUX4052
Other Parts Discussed in Thread: TPS65132, , TMUX6236, TMUX7436F

Tool/software:

Hi team,

Can MUX4052 support differential signals?

use TPS65132 provide +-6V and signal speed is 5MHz and +-5V

block as below. pls help to check. thanks

0 Nir Gilgur 3 months ago

Hello Jimmy,

The TMUX4052 can support differential signals up to +-12V and has a typical bandwidth of 600MHz.

It will fit in your application.

Thanks,

Nir

0 Clemens Ladisch 3 months ago

Guru 304250 points

The TMUX4052 has an on-resistance of about 60 Ω, which will attenuate the signal quite a lot. Better use the TMUX6236 or TMUX7436F.

0 Jimmy WANG 3 months ago in reply to Nir Gilgur

Genius 3725 points

Hi team,

If the input signal is +- 5V~
Does the MUX power input have to have positive and negative voltages?

0 Clemens Ladisch 3 months ago in reply to Jimmy WANG

Guru 304250 points

As shown in the recommended operating conditions, you must not try to switch signals voltages that go beyond the power rails.

0 Jimmy WANG 3 months ago in reply to Clemens Ladisch

Genius 3725 points

Hi team,

I didn't clearly describe my question.

I mean, does the VCC of the MUX have to be positive and negative voltages? if an input signal is bipolar. thanks

0 Clemens Ladisch 3 months ago in reply to Jimmy WANG

Guru 304250 points

If the signals to be switched have positive and negative voltages, then V_DD and V_SS must be positive and negative.

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