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TMUX1104: Is the 10-DGS packaged device a pin to pin replacement for MAX4734EUB

Part Number: TMUX1104

Hi,

Could you please let me know if TMUX1104DGSR is a Pin to Pin replacement for MAX4734EUB. If not, what is the best replacement device you can recommend.

Regards,
Sandesh

  • Hi Sandesh,

    The TMUX1104DGSR is in same package/pinout as the MAX4734EUB and there are some parametric differences.

    These can be summarized as follows:

    1. The competitor part has lower supply range (only goes up to 3V for spec'd supplies) while the TI part goes up to 5V.
    2. The competitor part has a higher max current rating of 150mA compared to the 1104's 30mA.
    3. The competitor part is slightly less resistive than the TMUX1104 at 3V supply but this is a minor difference.
    4. The typical Leakage specs for the competitor device are lower but their max ratings are higher than the TI part - but ultimately they are comparable
    5. The competitor part has a lower bandwidth and worse cross-talk/off-isolation than the TMUX1104
    6. The TMUX1104 has much less (~40x less on average) of charge injection than the competitor device. 
    7. The TMUX1104 can operate at a higher temperature range than the competitor device.
    8. Logic Pin Threshold (VIH(min) and VIL(max)) are slightly different - the competitor device has a VIH(min) of 1.4V and VIL(max) of 0.5V while the TMUX1104 has VIH(min) of 1.35V and VIL(max) of 0.8V - so it is a bit more relaxed with the 1104 so the same control should be fine.

    Ultimately the parts can work in similar applications as they both are precision and while they aren't 1:1 the TMUX1104 still has great performance on these specs, is our closest option for a cross, and realistically the largest gap of applications I see is ones where continuous current requirement is higher than 30mA - but we don't have a similar pin to pin device that matches this devices continuous current. 

    If you have any other questions please let me know!

    Best,

    Parker Dodson