Low Power CMOS Dynamic Latch Comparator using 0.18μm Technology

2015 ◽  
Vol 3 (2) ◽  
Author(s):  
Rahul Singh ◽  
And Arun Sharma
Keyword(s):  
Low Power ◽  
Power Dissipation ◽  
High Speed ◽  
Propagation Delay ◽  
Current Sensing ◽  
Low Power Cmos ◽  
Simulation Results ◽  
Supply Voltages ◽  
Differential Current

The design and analysis of low power, high speed CMOS dynamic latch comparator is presented. The comparator combines the features of both, the resistive dividing network and differential current sensing comparator. The proposed design will improve the comparator performance by reducing the propagation delay, power dissipation. Simulation results are obtained in 0.18um with supply voltages of 1.8v respectively. The schematic of comparator is captured using Cadence Virtuoso schematic editor and simulated using the Cadence Spectre simulator.

A LOW-POWER AND HIGH-SPEED D FLIP-FLOP USING A SINGLE LATCH

2002 ◽  
Vol 11 (01) ◽  
pp. 51-55
Author(s):  
ROBERT C. CHANG ◽  
L.-C. HSU ◽  
M.-C. SUN
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Power Dissipation ◽  
High Speed ◽  
Operating Frequency ◽  
Flip Flop ◽  
Lower Power ◽  
Simulation Results ◽  
Hspice Simulation

A novel low-power and high-speed D flip-flop is presented in this letter. The flip-flop consists of a single low-power latch, which is controlled by a positive narrow pulse. Hence, fewer transistors are used and lower power consumption is achieved. HSPICE simulation results show that power dissipation of the proposed D flip-flop has been reduced up to 76%. The operating frequency of the flip-flop is also greatly increased.

Design of Low Power CMOS Comparator using 180nm Technology for ADC Application

2017 ◽  
Vol MCSP2017 (01) ◽  
pp. 11-13
Author(s):  
Truptimayee Behera ◽  
Ritisnigdha Das
Keyword(s):  
Low Power ◽  
Power Dissipation ◽  
High Speed ◽  
High Performance ◽  
Input Voltage ◽  
Clock Frequency ◽  
Nmos Transistor ◽  
Body Effect ◽  
Low Power Dissipation ◽  
Low Power Cmos

In our design of CMOS comparator with high performance using GPDK 180nm technology we optimize these parameters. We analyse the transient response of the schematic design and the gain is calculated in AC analysis and also we measure the power dissipation. The circuit is built by using PMOS and NMOS transistor with a body effect. A plot of phase and gain also discussed in the paper. Finally a test schematic is built and transient analysis for an input voltage of 2V is measured using Cadence virtuoso. Simulation results are presented and it shows that this design can work under high speed clock frequency 200MHz. The design has low power dissipation.

scholarly journals Implementation of Energy Efficient gates using Adiabatic Logic for Low Power Applications

2019 ◽  
Vol 8 (3) ◽  
pp. 3327-3332
Keyword(s):  
Energy Dissipation ◽  
Power Systems ◽  
Low Power ◽  
Power Dissipation ◽  
High Speed ◽  
Heat Removal ◽  
Propagation Delay ◽  
Digital Devices ◽  
Adiabatic Logic ◽  
Combinational And Sequential Circuits

In today's electronic sector, low energy has appeared as a major feature. Power effectiveness is one of the most significant characteristics of contemporary, high-speed and mobile digital devices. Different methods are available to decrease energy dissipation at distinct stages of the planning method and have been applied. As the transistors count per device region continues to rise, while the switching energy does not rise at the same pace, power dissipation increases, and heat removal becomes more hard and costly. The power consumption of electronic appliances can be decreased by using various logic types. For such low-power electronic applications, adiabatic logic mode is very appealing. Using adiabatic logic, distinct powerefficient gates are intended in this document and contrasted for energy dissipation, propagation delay and no of the transistors used. In addition, the circuit developer can use these gates in the combinational and sequential circuits to develop low-power systems. The simulations of these gates are carried out in 90 nm technology using cadence virtuoso instrument.

scholarly journals DESIGN OF A LOW POWER FLIP-FLOP USING CMOS DEEP SUBMICRON TECHNOLOGY

2013 ◽  
pp. 260-264
Author(s):  
B. FRANCIS ◽  
Y. APPARAO ◽  
B. CHINNARAO
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Power Dissipation ◽  
High Speed ◽  
Short Pulse ◽  
Propagation Delay ◽  
Deep Submicron ◽  
Leakage Power ◽  
Flip Flop ◽  
Propagation Delays

This paper enumerates low power, high speed design of flip-flop having less number of transistors and only one transistor being clocked by short pulse train which is true single phase clocking (TSPC) flip-flop. Compared to Conventional flip-flop, it has 5 Transistors and one transistor clocked, thus has lesser size and lesser power consumption. It can be used in various applications like digital VLSI clocking system, buffers, registers, microprocessors etc. The analysis for various flip flops and latches for power dissipation and propagation delays at 0.13μm and 0.35μm technologies is carried out. The leakage power increases as technology is scaled down. The leakage power is reduced by using best technique among all run time techniques viz. MTCMOS. Thereby comparison of different conventional flip-flops, latches and TSPC flip-flop in terms of power consumption, propagation delays and product of power dissipation and propagation delay with SPICE simulation results is presented.

Performance Analysis of Various Multipliers Using 8T-full Adder with 180nm Technology

2020 ◽  
Vol 13 (6) ◽  
pp. 864-870
Author(s):  
Sai Venkatramana Prasada G.S ◽  
G. Seshikala ◽  
S. Niranjana
Keyword(s):  
Low Power ◽  
Power Dissipation ◽  
High Speed ◽  
High Performance ◽  
Full Adder ◽  
Fundamental Operation ◽  
Wallace Tree ◽  
Power Delay Product ◽  
The Comparative Study ◽  
Wallace Tree Multiplier

Background: This paper presents the comparative study of power dissipation, delay and power delay product (PDP) of different full adders and multiplier designs. Methods: Full adder is the fundamental operation for any processors, DSP architectures and VLSI systems. Here ten different full adder structures were analyzed for their best performance using a Mentor Graphics tool with 180nm technology. Results: From the analysis result high performance full adder is extracted for further higher level designs. 8T full adder exhibits high speed, low power delay and low power delay product and hence it is considered to construct four different multiplier designs, such as Array multiplier, Baugh Wooley multiplier, Braun multiplier and Wallace Tree multiplier. These different structures of multipliers were designed using 8T full adder and simulated using Mentor Graphics tool in a constant W/L aspect ratio. Conclusion: From the analysis, it is concluded that Wallace Tree multiplier is the high speed multiplier but dissipates comparatively high power. Baugh Wooley multiplier dissipates less power but exhibits more time delay and low PDP.

scholarly journals A HIGH-PERFORMANCE AND LOW-POWER DELAY BUFFER

2013 ◽  
pp. 78-82
Author(s):  
GOPALA KRISHNA.M ◽  
UMA SANKAR.CH ◽  
NEELIMA. S ◽  
KOTESWARA RAO.P
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
High Speed ◽  
High Performance ◽  
Vlsi Design ◽  
Flip Flop ◽  
Ring Counter ◽  
Double Edge ◽  
Low Power Cmos ◽  
Cmos Vlsi

In this paper, presents circuit design of a low-power delay buffer. The proposed delay buffer uses several new techniques to reduce its power consumption. Since delay buffers are accessed sequentially, it adopts a ring-counter addressing scheme. In the ring counter, double-edge-triggered (DET) flip-flops are utilized to reduce the operating frequency by half and the C-element gated-clock strategy is proposed. Both total transistor count and the number of clocked transistors are significantly reduced to improve power consumption and speed in the flip-flop. The number of transistors is reduced by 56%-60% and the Area-Speed-Power product is reduced by 56%-63% compared to other double edge triggered flip-flops. This design is suitable for high-speed, low-power CMOS VLSI design applications.

A LOW POWER AND VARIATION-INSENSITIVE CURRENT-MODE SIGNALING SCHEME

2013 ◽  
Vol 22 (08) ◽  
pp. 1350068
Author(s):  
XINSHENG WANG ◽  
YIZHE HU ◽  
LIANG HAN ◽  
JINGHU LI ◽  
CHENXU WANG ◽  
...  
Keyword(s):  
Low Power ◽  
High Speed ◽  
Current Mode ◽  
Signal Propagation ◽  
Cmos Technology ◽  
Propagation Delay ◽  
Noise Performance ◽  
On Chip ◽  
Variation Tolerance ◽  
Driving Signal

Process and supply variations all have a large influence on current-mode signaling (CMS) circuits, limiting their application on the fields of high-speed low power communication over long on-chip interconnects. A variation-insensitive CMS scheme (CMS-Bias) was offered, employing a particular bias circuit to compensate the effects of variations, and was robust enough against inter-die and intra-die variations. In this paper, we studied in detail the principle of variation tolerance of the CMS circuit and proposed a more suitable bias circuit for it. The CMS-Bias with the proposed bias circuit (CMS-Proposed) can acquire the same variation tolerance but consume less energy, compared with CMS-Bias with the original bias circuit (CMS-Original). Both the CMS schemes were fabricated in 180 nm CMOS technology. Simulation and measured results indicate that the two CMS interconnect circuits have the similar signal propagation delay when driving signal over a 10 mm line, but the CMS-Proposed offers about 9% reduction in energy/bit and 7.2% reduction in energy-delay-product (EDP) over the CMS-Original. Simulation results show that the two CMS schemes only change about 5% in delay when suffering intra-die variations, and have the same robustness against inter-die variations. Both simulation and measurements all show that the proposed bias circuits, employing self-biasing structure, contribute to robustness against supply variations to some extent. Jitter analysis presents the two CMS schemes have the same noise performance.

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