JAJSO44A June 2023 – September 2024 TMUX582F-SEP
PRODUCTION DATA
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The TMUX582F-SEP conducts equally well from source (Sx) to drain (D or Dx) or from drain (D or Dx) to source (Sx). Each signal path has very similar characteristics in both directions. It is important to note, however, that the overvoltage protection is implemented only on the source (Sx) side. The voltage on the drain is only allowed to swing between VFP and VFN and no overvoltage protection is available on the drain side.
The primary supplies (VDD and VSS) define the on-resistance profile of the switch channel, whereas the fault voltage supplies (VFP and VFN) define the signal range that can be passed through from source to drain of the device. It is good practice to use voltages on VFP and VFN that are lower than VDD and VSS to take advantage of the flat on-resistance region of the device for better input-to-output linearity. The flattest on-resistance region is roughly 3V below VDD. Once the signal is within 3V of VDD the on-resistance will exponentially increase and may impact desired signal transmission.