need help in switch selection

If the signal you want to switch goes near the positive rail, then you'd better use a transmission gate made from an NMOS and a PMOS.

All CMOS switches have approximately zero supply current.

What is the supply voltage? The signal voltage range? The required bandwidth? What current? How much resistance can you afford?

supply range is from 3V to 4.35V (battery).

the signal voltage range is also 3V to 4.35V. what do you mean by bandwidth? current is the lowest as possible. I'm not sure about the resistance part. how to determine that? 

thank you.

This signal is a battery level signal connected to the battery and charging chip output to the MCU GPIO. We have a switch in between battery / charging chip and MCU. 

There are many analog switches. The cheapest one is the SN74LVC1G66.

Hello Pragash,

Thanks for the inquiry. As Clemens has pointed out, TI has many analog switch products. I am the applications engineer for the power MOSFET product line. How much current does the signal require? Is this a small signal application or a power switching application? We do make some very small N-channel FETs such as the CSD13380F3 and CSD15380F3 which may be of interest.

Hi Pragash,

Just following up to see if your issue has been resolved. If I do not hear back from you today, I will assume you have gotten the answers you need and close out this thread.