Difference between lvt and lvt_mac device in a TSMC65 technology

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Mvitale

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Dear All,
I'm a PhD student who is using the TSMC65N technology to design an ADC pipeline.
I recently finished the design using mosfet MAC and now I should move on to the layout.
But before to start, I would like to now if there are some difference between the
lvt and lvt_mac devices at schematic level and/or layout level in terms of device behavior.
 

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For a standard MOSFET-based ADC pipeline design, the difference between LVT and LVT_MAC devices might be negligible at the schematic level. However, for optimal performance, using LVT_MAC devices can be beneficial due to potential layout optimizations for matching and analog behavior.
 
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LVT_MAC devices are designed to have lower flicker noise and better overall noise performance, important for analog applications like ADCs. LVT devices are less optimized for noise performance.
 
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geometry dash lite​
aliarifat794 said:
LVT_MAC devices are designed to have lower flicker noise and better overall noise performance, important for analog applications like ADCs. LVT devices are less optimized for noise performance.
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Yes, LVT_MAC devices are the superior choice for applications where low noise is crucial.
 
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I'm interested in this too. How specifically do fabricated LVT_MACs change wrt plain LVTs? I ask because in layout view they have exactly the same layers except from an additional LVSDUMMY for MACs.
 

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Alchemist_ said:
I'm interested in this too. How specifically do fabricated LVT_MACs change wrt plain LVTs? I ask because in layout view they have exactly the same layers except from an additional LVSDUMMY for MACs.
Click to expand...
I recently contacted IMEC who ensured me that the layout is the same for both lvt and lvt_MAC. That layer is "DUMMY", so I assume it doesn't affect the layout.
 

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