A fast settling multipath CMOS OTA for high speed switched capacitor applications is presented here. With the basic topology similar to folded-cascode, bandwidth and DC gain of the OTA are enhanced by adding extra paths for signal from input to output. Designed circuit is simulated with HSPICE using level 49 parameters (BSIM 3v3) in 0.35 um standard CMOS technology. The DC gain achieved is 56.7...

In this paper, a formal design approach for the differential cascode voltage switch with pass gate (DCVSPG) logic is presented. This permits the design of any combinational logic function by the use of a k-map or by a modified QuineMcCluskey algorithm. The basic design approach used is based on pass logic and shows that a DCVSPG logic gate designed with minimum number of transistors may not alw...

In this paper we propose a design path for optimization-based device sizing of analog circuits. The design path offers an efficient and reliable way to implement high-performance analog integrated circuits without the explicit knowledge of an experienced designer. A key feature is that the partial cost functions are generated directly from the circuit topology. To demonstrate the functionality ...

background   and   objectives:    the   toxin   co-regulated   pilus   a   (tcpa)   has   been   described   as   a   criti- cal  pathogenicity  factor  of   vibrio  cholerae .  tcpa  is  a  candidate  for  making  subunit  vaccine  against  chol- era.  the  aim  of  this  study  was  to  produce  a  candidate  vaccine  by  expressing  recombinant  tcpa  in   e.  coli . materials and methods: i...