TMUX1308: analog & digital signals

Piet Vaes

Part Number: TMUX1308
Other Parts Discussed in Thread: TXU0204, , LM324B, DRV8873

Dear All,

I want to use the TMUX1308 for 4 sensor readings via LM324B (analog) and 2 current readings (analog) from DRV8873 and 2 RPM digital signals (3V) from TXU0204 is this possible. The Fan's are CUI Devices CFM-4010-13-22 and Delta FFB0412UHN-SP4Z.

Thanks in advance

Piet

1 month ago

0 Nir Gilgur 1 month ago

TI__Mastermind 20675 points

Hello Piet,

The TMUX1308 can support this application as long as the signals you are passing are within its specifications.

What is the voltage supply level you are planning to power the mux with?

What is the voltage signal level of the signals you are planning to pass through the mux?

Also, what is the frequency of the signals?

Thanks,

Nir

+1 Piet Vaes 1 month ago

Intellectual 420 points

Dear Nir Gilgur,

See schematic

Best Regards,

Piet

0 Nir Gilgur 1 month ago in reply to Piet Vaes

TI__Mastermind 20675 points

Hello Piet,

It looks like you are powering the mux with 3V and passing 3V signals.
This is normal operation for the TMUX1308. I don't see any issues or concerns here.

Thanks,

Nir

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TMUX1308: analog & digital signals