Quad SPDT Switch with Independent channel control

Suhas Raja Chandragupta55

Other Parts Discussed in Thread: TS3A44159, TS5A23157, TS12A44513, TS3A5223

Hi Team,

There is a requirement of using 8 SPDT switches in an application at my customer. The switch device needs to be compatible with 3.3 V supply operation.

The application requires board space optimization and hence quad channel SPDT switch device is needed. I found TS3A44159 device to be good fit here. However,

it does not have independent control for the four channels and it is multiplexed. The application requires all the four channels to have independent control.

Can you help provide suggestion on Quad SPDT switch device with Independent control?

Thank you!

-Best Regards,

Suhas R C

over 9 years ago

0 ShreyasRao over 9 years ago

TI__Guru 61790 points

Hi Suhas ,

www.ti.com/.../slyb125d.pdf
according to the analog switch guide there are couple of products which 4xSPDT and neither of them have independent controls . You could possibly have 2 of dual channel SPDT , which have independent control like TS5A23157 /59.

0 Adam Torma over 9 years ago in reply to ShreyasRao

TI__Mastermind 45575 points

Suhas,

I couldn't find a 4-channel 1:2 SPDT switch with each channel having independent control. I found some 4-channel 1:1 SPST switches with each channel having independent control like the TS12A44513 /4/5. The best I can think of is using 4x tiny 2-channel SPDT devices.

I used the TI.com switch selection tool to select 2 channel 1:2 SPDT and sorted the package size column smallest to largest. It looks like you could use 4x TS3A5223 devices with total package area 10mm^2

Thank you,

Adam

0 Suhas Raja Chandragupta55 over 9 years ago in reply to Adam Torma

TI__Intellectual 1690 points

Adam,

Thank you for your inputs. I suppose in that case we have to look at 2 channel SPDT switches for space optimization.

We will discuss with customer and get back to you in case of any queries. Thank you for your help!

-Best Regards,

Suhas R C

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Quad SPDT Switch with Independent channel control