Browsing by Subject "Integrated circuits"
Now showing items 1-20 of 34
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1.5V, 2.4GHz highly linear CMOS downconversion mixer
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)In the tremendous growth of wireless handheld devices, low power consumption becomes a major consideration in radio frequency integrated circuit (RFIC) designs. This thesis explores low voltage low power RFIC design for ... -
Adaptive biased switched capacitor filters
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)The demand from today’s handheld devices, such as laptop, ipod, cellphones is to have a long battery life with no compromises in speed. The devices dissipate power even in standby mode also. Op-amp is a major block in all ... -
Analysis and modeling of power distribution network and decoupling network design strategies for high speed digital and analog VLSI system
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)Today’s high speed digital and analog VLSI systems are operating in GHz frequency range. With high switching rate of the devices, power distribution network (PDN) impedance causes ripples in power supply. If PDN is not ... -
ASIC implementation of discrete fourier transform processing module
(Dhirubhai Ambani Institute of Information and Communication Technology, 2007)This work presents the design and ASIC implementation of Discrete Fourier Transform Processing Module. The performance of designed DFT processing module is better than radix-2 and radix-4 FFT algorithms, and is comparable ... -
Asynchronous analog to digital converter
(Dhirubhai Ambani Institute of Information and Communication Technology, 2011)Nowadays, asynchronous systems are becoming more popular for low power applications. Asynchronous Systems help to reduce metastability errors and clock skew errors. This thesis is about an asynchronous analog to digital ... -
Auto tuning circuit for continuous time filters
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)This thesis presents the design of auto tuning circuit for continuous time filters and is designed for applications that require high linearity and moderate precision. This scheme is used to improve tuning range of 50% and ... -
Built-in self test architecture for mixed signal systems
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)Built-in self test architecture or BIST as we call them, are the necessity of time since the shrinking sizes of component on-chip with advance in IC technology are making it BIST artistries are being rapidly developed and ... -
Capacitor mismatch in switched capacitor circuits, techniques to minimize mismatch
(Dhirubhai Ambani Institute of Information and Communication Technology, 2011)This thesis about the designing of capacitive mismatch insensitive switched capacitor amplifier for analog to digital converters (ADC). The accuracy of the conversion is an important factor. The accuracy depends upon the ... -
Column decoder for memory redundant cell array
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)As the semiconductor technology advances, the yield of memory chip is reducing. The cause of yield degradation is errors in manufacturing process associated with tight geometries. The thesis work proposes a redundancy ... -
CTS and CCOpt metodology's to achieve low skew-low power clock.
(Dhirubhai Ambani Institute of Information and Communication Technology, 2013)In synchronous VLSI chips, clock distribution network plays an important role. The quality of clock network mainly effects the performance of the chip, because the speed of data transfer depends on clock signal. Achieving ... -
Design & layout of a low voltage folding & interpolation ADC for high speed applications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2012)Analog to Digital Converters (ADC) and Digital to Analog Converters (DAC) plays a vital role in mixed analog signalling, communication and digital signal processing world. Now a day, the demand for designing of high ... -
Design of a CMOS variable gain amplifier
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)In advanced CMOS technologies as device dimensions are decreasing, requirement for lower supply voltages are increasing to make certain device reliability. So, challenges for analog circuit designers are to discover new ... -
Design of laser driver circuit
(Dhirubhai Ambani Institute of Information and Communication Technology, 2005)Designing an Optoelectronic Integrated Circuit (OEIC) is an attractive field of research as it bridges the interface between electrical and optical components. The design of laser driver in optical transmitter is very ... -
Design of low-voltage, low-power, wide-band CMOS LC VCO using active inductors
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)In this thesis the design of low-voltage, low-power, wide-band CMOS LC VCO using active inductor has been proposed. The oscillator is based upon the classic LC-tuned negative-resistance topology, with a novel active inductor ... -
Design of the analog front end circuit for X-ray detectors
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)The Thesis presents a novel idea to efficiently read out the value corresponding to incident X-Ray, from X-Ray sensor. A system level solution has been proposed which is unique in itself in terms of approach. A simple ... -
Design of the high speed, high accuracy and low power current comparators
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)Comparators are non linear, decision making analog circuits, which find wide spread application in data converters, data transmission and others. Comparison can be done in terms of “Voltage” or “Current”. A current ... -
Design of voltage reference circuits
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)Shrinking device dimensions in advancing CMOS technologies require lower supply voltages to ensure device reliability. As a result, analog circuit designers are faced with many challenges in finding new ways to build analog ... -
Designing of an efficient power clock generation circuit for complementary pass-transistor adiabatic logic carry save multiplier
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)This thesis presents a novel four-phase power clock generator for low power adiabatic logic without using inductors. The power clock generator is designed using current mirror arrangement of PMOS and NMOS transistors. ... -
Efficient scan-based BIST scheme for low heat dissipation and reduced test application time
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)Switching activity during test application can be significantly higher than that during normal circuit operation in many circuits. This is due to the fact that the correlation between consecutive test vectors is significantly ... -
High speed sample and hold circuit design
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)Sampling of the time-varying input signal is the first step in any type of Analog to Digital (A/D) conversion. For Low Power and high-speed A/D converter, a high-performance Sample and Hold (S/H) circuit is needed as its ...