Statistical design of the four-MOSFET structure
The statistical design of the four-MOSFET structure is presented in this paper. The quantitative measure of the effect of mismatch between the four transistors on nonlinearity and offset current is provided through contours. Statistical optimization of the transistor W and L values is demonstrated. The four-MOSFET structure was fabricated through the MOSIS 2 mum process using MOS transistor Level-3 model parameters. Experimental results are included in the paper.
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