74HC139 (2-to-4 line decoder/demultiplexer) but for analog?

[stenzer]

Hi,

have a look at the MAX14778 fom Maxim Integrated [1], that one should fit for your application.

[1] https://datasheets.maximintegrated.com/en/ds/MAX14778.pdf

greets

 

[michcfr]

Hi,

have a look at the MAX14778 fom Maxim Integrated [1], that one should fit for your application.

[1] https://datasheets.maximintegrated.com/en/ds/MAX14778.pdf

greets

Thank you stenzer.
This is excatly what I am looking for, but...it is very expensive and has the same footprint compared to two standard 74HC4051.

Finally, would I find better (in size and price) than taking two 74HC4051?

 

[stenzer]

Hi,

yes the MAX14778 is pricy, but it is an beyond the rails switch, can source/sinke a high current, has a low on resistance as well as a good on-resistance matching. Further, it has large-signal bandwith of 75 MHz. Thus the MAX14778 is well suited for analog measurement applications.

A further solution would be a 8 x SPST switch, but those switches like the ADG714/ADG715 are using a I²C or SPI interface to select the desired switch setting.

greets