Performance advantage of ratioed circuits without the. We present a new logic family, differential current switch logic dcsl for implementing clocked cmos circuits. Design procedures for differential cascode voltage switch circuits. Us4570084a clocked differential cascode voltage switch. Ultralow subthreshold voltage research has become increasingly important with the recent shift in consumer electronics towards low power designs for mobile. In conventional dcvsl structure there lies a drawback which explained lowto. The circuit is in principle a differ ential cascode voltage switch logic circuit dcvs. Singleended cascode voltage switches have been described by hiltebeitel in a technical article cmos xor in the ibm technical disclosure bulletin, vol. The first procedure makes use of a karnaugh map and the second. This logic family is also known as differential cascode voltage switch logic dcvs or. Abstract differential cascode voltage switch dcvs logic is a cmos circuit technique which has potential advantages over conventional nand nor logicin terms of circuit delay, layout density, power dissipation, and logic flexibility. Ep0220459a2 differential cascode voltage switch logic.
Differential cascode voltage switch dcvs is a wellknown logic style, which constructs robust and reliable circuits. Differential logic cascode voltage switch logic cvsl aka, differential logic performance advantage of ratioed circuits without the extra power requires complementary inputs produces complementary outputs operation two nmos arrays o ferno f, one for f pdmaoos ldelpuocsscor one path is always active. In cornparimson to other forms of clocked dcvs, dcsl achieves better performance both in terms. Pdf optimal synthesis of differential cascode voltage. We discuss about its voltage gain, common mode input voltage range, output voltage range and its input referred offset. Referring to the drawings in more detail, there is illustrated in fig. Important criteria for choosing a suitable vlsi logic family include power, delay, logic circuit density, deviceprocess complexity, and compatibility with design automation tools. Differential cascode voltage switch logic versus conventional logic kan m. In this paper, two new structures for differential cascode voltage switch logic dcvsl pullup stage are proposed.
This paper will describe a differential cmos logic family cascode voltage switch logic cvsl. Design procedures for differential cascode voltage switch. In this video, we explain how a differential input stage works. A logic technology that has been gaining widespread acceptance is differential cascode voltage switch dvcs logic. Cascode voltage switch logic cvsl refers to a cmostype logic family which is designed for. This thesis presents two new procedures for constructing differential cvs circuits to perform random logic functions.
Pdf modified differential cascode voltage switch logic optimized. Pulfrey, member, ieee abstract differential caseode voltage switch dcvs logic is a cmos circuit technique which has potential advantages over conventional nand nor logic in terms of circuit delay, layout density, power dissipation, aud logic. Differential cascode voltage switch dcvs logic is a cmos circuit technique that has potential advantages over conventional nandnor logic in terms of circuit delay, layout density, power. This paper will describe a differential cmos logic family. Logic dcvsl as a replacement to cmos for near threshold voltage circuits, demonstrating faster. Pdf design and implementation of differential cascode voltage. Two main strategies are studied in this paper to form static dcvsbased standard ternary fundamental logic components in digital electronics. Differential cascode voltage switch dcvs strategies by. Performance and variation robustness of nearthreshold. In this paper, two procedures are presented for constricting dcvs trees to perform random logic functions.