Browsing by Author "Parikh, Chetan D."

Now showing items 1-20 of 33

    • 1.5V, 2.4GHz highly linear CMOS downconversion mixer 

      Kumar, Ch. Uday (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 ...

    • 10-bit high speed high SFDR current steering DAC 

      Bapodra, Dhairya B. (Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
      The Thesis presents an attempt to design a 10-bit High Speed High SFDR Current Steering DAC with a simple and different approach. Most of earlier approaches contain complex design and bulky unary portion. Here an approach ...

    • 1v rail to tail operational amplifier design for sample and hold circuits 

      Kumar, Mahesh (Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
      At low voltage, the input common mode voltage of Operational amplifier is limited which restricts its use as a buffer. This works deals with designing a rail to rail amplifier. The Thesis presents a 1V rail to rail operational ...

    • Accurate on-chip current sensing technique for Buck converter 

      Jain, Priyanka (Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
      Current mode bucks converters have many advantages over voltage mode control such automatic over-current protection, Better stability, better line regulation and faster dynamic response. Many different current sensing ...

    • Adaptive biased switched capacitor filters 

      Bajaj, Garima (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 ...

    • Area reduction in 8 bit binary DAC using current multiplication 

      Upraity, Maitry (Dhirubhai Ambani Institute of Information and Communication Technology, 2007)
      A proposed current multiplication technique is applied on 8 bit binary current steering Digital-to -Analog Converters with LSB 150 μA, to reduce area. MSB 1 and MSB 2 current are first kept half to reduce area and then ...

    • Asynchronous analog to digital converter 

      Patel, Vidyut A. (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 ...

    • Built-in self-test for a flash analog to digital converter 

      Bhalerao, Mangesh (Dhirubhai Ambani Institute of Information and Communication Technology, 2006)
      The intricacies of modern System on Chips (SoCs), comprising of analog, digital and even Redio-Frequency (RF) blocks on a single chip, are surpassing all previous conceivable limits. A more perplexing problem now is not ...

    • Capacitor mismatch in switched capacitor circuits, techniques to minimize mismatch 

      Chevella, Subhash (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 ...

    • CMOS latched comparator design for analog to digital converters 

      Gupta, Amit Kumar (Dhirubhai Ambani Institute of Information and Communication Technology, 2007)
      Conventional comparators are at the two extremes as far as power delay product and isolation between input and output is concern. Either they achieved very good isolation at the cost of power in the preamplifier or save ...

    • Comparison of single-bit and multi-bit second order sigma-delta modulators 

      Dave, Marshnil (Dhirubhai Ambani Institute of Information and Communication Technology, 2006)
      This work deals with comparison of Single-bit and Multi-bit Second Order Sigma-Delta Modulators at system level for various performance metrics and different circuit nonidealities. For this work of comparison, Boser-Wooley ...

    • Design automation of analog to digital converters based on geometric programming 

      Purushothaman, A. (Dhirubhai Ambani Institute of Information and Communication Technology, 2012)
      The trend towards digital processing of analog signals in an increasing number of application fields has stimulated significant research efforts in the area of data converters implemented in CMOS technologies. Designing ...

    • Design of a CMOS variable gain amplifier 

      Verma, Vivek (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 a high speed I/O buffer 

      Rathore, Akhil (Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
      In high speed serial transmission of data, output buffer creates the bottleneck. Current Mode Logic (CML) buffers have gained wide acceptance in most high speed serial interfaces as they reach speed of the order of Gbp/s. ...

    • Design of a low power high slew rate OPAMP and to study its impact on sigma delta modulator's performance 

      Verma, Aseem (Dhirubhai Ambani Institute of Information and Communication Technology, 2006)
      This thesis presents the work done on the design of a low-power, high slew rate opamp and subsequently the design of a fully-differential second order Switched-Capacitor architecture of a Sigma Delta modulator in 1.8 V, ...

    • Design of laser driver circuit 

      Khera, Neha (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 high performance, wide bandwidth current feedback amplifier with complementary input pair 

      Dubey, Divya (Dhirubhai Ambani Institute of Information and Communication Technology, 2007)
      This thesis presents the work done on the design of a low voltage high performance, wide bandwidth current feedback amplifier [CFA] with complementary input pair. The design is carried out in 1.8 V, 0.18 micron CMOS process. ...

    • Design of low-voltage, low-power, wide-band CMOS LC VCO using active inductors 

      Sesha Sai, Aduru Venkata Raghava (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 

      Roy, Subhash Chandra (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 

      Chasta, Neeraj Kumar (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 ...