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The Ex-OR and Ex-NOR gates are the basic building blocks of various digital system applications like adder, comparator, and parity generator/checker and encryption processor. This paper proposes a full swing pass transistor based Ex-OR/Ex-NOR gate which gives better driving capability, less propagation delay and low power dissipation as compared to the existing Ex-ORlEx-NOR circuits, and by modifying...
This paper presents a well-defined method for the design of a high gain, high CMRR two-stage CMOS operational amplifier using 0.18μm CMOS technology for Bio-medical applications. The Op-amp consists of a cascade of Folded-cascode differential amplifier in first stage followed by a fully differential amplifier with PMOS current source load in second stage. The gm/Id technique is employed in designing...
Single ended data sensing for asymmetrical low voltage memories has become a topic of much interest due to its application in very low energy computing and communication. In this paper, we present an ultra-high-speed (UHS) data sensing scheme for single ended near threshold asymmetric static random access memory (SRAM) design in a 45nm standard CMOS process. The proposed bit-line decoupled single...
As Analog CMOS ICs are prone to process variations, a minute change in the WIL ratio during fabrication might vary the specifications of the Op-Amp drastically. It is therefore essential to develop a means by which, the specification of IC can be restored even after fabrication. One such approach is to make Analog ICs programmable, so that the specifications can be restored by applying digital input...
In this paper an enhanced fully differential recycling folded cascode operational trans conductance amplifier that achieves higher DC gain with same power and area as that of recycling folded cascode OTA is discussed. Generally, the output impedance of the cascode amplifier depends on the current flowing into the cascode node. Hence, in order to increase the DC gain of the conventional Recycling Folded...
Design of high speed low power comparators are required to build an efficient analog to digital converters (ADCs). This paper mainly focuses on the preamplifier positive feedback latch based comparator for Asynchronous Successive Approximation Register ADC (ASAR ADC). The main components of such comparator are the preamplifier and latch circuit. Preamplifier is used for removing the kickback noise...
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