SIGNAL PROCESSING WITH ANALOG CIRCUIT Chun Lo. Analog circuit design  Main disadvantage: low precision  Due to mismatch in analog circuit components.

Slides:



Advertisements
Similar presentations
COEN 180 Flash Memory.
Advertisements

Differential Amplifiers and Integrated Circuit (IC) Amplifiers
The Industry’s Smallest 16 Bit ADC’s
CMOS Comparator Data Converters Comparator Professor Y. Chiu
Sensors Interfacing.
RF Circuit Design Chris Fuller /7/2012.
Linearized MOSFET Resistors
Analog to Digital Conversion. Introduction  An analog-to-digital converter (ADC, A/D, or A to D) is a device that converts continuous signals to discrete.
NSoC 3DG Paper & Progress Report
1 Dr. Un-ki Yang Particle Physics Group or Shuster 5.15 Amplifiers and Feedback: 3.
Analogue Input/Output
VLSI System Design – ECES 681 Lecture: Interconnect -1 Prashant Bhadri Office: Rhodes Hall - 933C Department of ECECS, College of.
Microelectronic circuits by Meiling CHEN 1 Lecture 13 MOSFET Differential Amplifiers.
CMOS VLSIAnalog DesignSlide 1 CMOS VLSI Analog Design.
1 Digital to Analog Converter Nov. 1, 2005 Fabian Goericke, Keunhan Park, Geoffrey Williams.
ADVANCED INTEGRATED CIRCUITS Eugenio Culurciello Spring 2005 Yale University SWITCHED CAPACITORS CIRCUITS.
Preliminary stuff Prof. Paul Hasler.
Controlling Systems Using IT (Level 3) Lecture – 1030 Thursday 23/04/2015 Boston College (Rochford Campus)
Amplifier Circuit This amplifier circuit DC analysis.
12/1/2004EE 42 fall 2004 lecture 381 Lecture #38: Memory (2) Last lecture: –Memory Architecture –Static Ram This lecture –Dynamic Ram –E 2 memory.
Audio Players 1 Audio Players. Audio Players 2 Introductory Question Audio players record sound in digital form but play it in analog form. The transformation.
Analog IC Design First – A OPAMP Design Example. Date: 15th NOV, 2007 報告人:何建興.
Electronics Involves the use of devices and circuits to control the flow of electric current to achieve some purpose. These circuits contain: Resistors,
Electronics for PS and LHC transformers Grzegorz Kasprowicz Supervisor: David Belohrad AB-BDI-PI Technical student report.
Low Cost DAQ Implementation
Modern VLSI Design 4e: Chapter 6 Copyright  2008 Wayne Wolf Topics Memories: –ROM; –SRAM; –DRAM; –Flash. Image sensors. FPGAs. PLAs.
Chapter 4 Logic Families.
Mixed Signal Chip LAB.Kyoung Tae Kang Dynamic Offset Cancellation Technique KyoungTae Kang, Kyusun Choi CSE598A/EE597G Spring 2006.
Lecture 15: Digital to Analog Converters Lecturers: Professor John Devlin Mr Robert Ross.
Introduction Advantage of DSP: - Better signal quality & repeatable performance - Flexible  Easily modified (Software Base) - Handle more complex processing.
˜ SuperHeterodyne Rx ECE 4710: Lecture #18 fc + fLO fc – fLO -fc + fLO
1 Brandon Rumberg West Virginia University Analog Filter Banks.
Digital Electronics and Computer Interfacing Tim Mewes 5. Computer Interfacing – DAQ cards.
ASIC Activities for the PANDA GSI Peter Wieczorek.
Budapest University of Technology and Economics Department of Electron Devices Microelectronics, BSc course MOS inverters
Digital to Analog Converter (DAC)
CHAPTER 6: MOSFET & RELATED DEVICES CHAPTER 6: MOSFET & RELATED DEVICES Part 2.
The AQuA Converter An Analog Memory Cell Micah O’Halloran Prof. Rahul Sarpeshkar Analog VLSI & Biological Systems Group Jan. 25, 2002.
1 Analog versus Digital Information-bearing signals can be either analog or digital. Analog signal takes on a continuous range of amplitude values. Whereas.
D/A Converters Dr. Paul Hasler and Dr. Phil Allen.
1 Differential Amplifier Input of every operational amplifier is a differential amplifier Performance of the differential pair depends critically on the.
2/June/2009LHCb Upgrade1 Single ended ADC Differential ADC –Convert single ended signal to differential (use AD8138 amp) –ASIC differential output ADC.
Digital-to-Analog Analog-to-Digital Week 10. Data Handling Systems  Both data about the physical world and control signals sent to interact with the.
VK-PA-Pico Power Analyzer Picoammeter Mode - Operating Principle to Measure Short Circuit Current (I sc ) of Solar Cell + - Solar Cell To Analog to Digital.
Digital-to-Analog Analog-to-Digital
EKT 314/4 WEEK 7 : CHAPTER 3 SIGNAL CONDITIONING ELECTRONIC INSTRUMENTATION.
Digital Signal Processor HANYANG UNIVERSITY 학기 Digital Signal Processor 조 성 호 교수님 담당조교 : 임대현
Norhayati Soin 06 KEEE 4426 WEEK 15/1 6/04/2006 CHAPTER 6 Semiconductor Memories.
Basics of Bypass Capacitor, Its Functions and Applications.
Enhancement Presentation Carlos Abellan Barcelona September, 9th 2009.
Nonvolatile memories:
Smruti R. Sarangi IIT Delhi
Ivan Perić University of Heidelberg Germany
Digital-to-Analog Analog-to-Digital
What is a DAC? A digital to analog converter (DAC) converts a digital signal to an analog voltage or current output DAC.
Floating-Gate Circuits, Systems, and Adaptation
MOSFET The MOSFET (Metal Oxide Semiconductor Field Effect Transistor) transistor is a semiconductor device which is widely used for switching and amplifying.
Y2K Floating-Gate Workshop
Analog-Digital Conversion
Data Acquisition System
Hugo França-Santos - CERN
How to avoid catching things on fire.
Digital-to-Analog Analog-to-Digital
Floating-Gate Circuits
Memory.
Chapter 1 Introduction to Electronics
Digital to Analog Converters (DAC)
COSMOS Summer 2008 Necessary Electronics
What is Digital Information?
1.Introduction to Advanced Digital Design (14 marks)
Presentation transcript:

SIGNAL PROCESSING WITH ANALOG CIRCUIT Chun Lo

Analog circuit design  Main disadvantage: low precision  Due to mismatch in analog circuit components such as transistors, resistors and capacitors  e.g. Amplifiers: lower input signal dynamic range Comparator: lower signal resolution Transistors: lower accuracy in current mode DAC  Advantage:  Less power consumption  Possibly smaller area

Mismatch correction  By trimming device  Larger device, layout technique in component mismatch  Autozeroing, correlated double sampling in amplifiers  Cost of extra area, power and design complexity  By in herent programming elements  Floating gate MOSFETs

 First paper  Floating Gates Transistors For Precision Analog circuit Design: An Overview  Srinivasan, Graham and Hasler  Second paper  Analog Floating –Gate On chip Auditory Sensing System Interfaces  Hasler, Smith, Graham, Ellis and Anderson

First paper  Structure of Floating Gate MOSFET  Programming floating gate transistors  Programming precision  Charge retention  Application examples of Floating Gate MOSFET  Differential pairs  DAC  ADC

MOSFET  MOS Transistor  Floating Gate MOSFET  The gate is completely surrounded by SiO2  No DC to ground  Used in Flash memory, ROM

Programming FG-MOSFET  Setting the DC voltage  Add or remove charge  Mainly two methods  Fowler Nordheim tunneling As a global eraser for all floating gates  Hot electron injection Program each floating gate to the desired value individually

Programming precision  What is the smallest drain current change  A single electron change results in an accuracy of or 12 bits

Charge Retention  Short term drift  Observed immediately after programming  Proportional to the amount of change that is programmed into the floating gate  Long term charge loss  Themionic emission  Related to both temperature and time

Applications  Differential pair  DAC  ADC

Second paper  Advance in analog VLSI circuits  Performance close to DSP  More option for designeer  Analog Digital Partition  Signal Processing Circuits  Noise Suppression for speech enhancement  Speech Recognition

Analog Digital Partitioning  Power and space  No overhead for tuning and programming  Work in subthreshold save power  SN VS Cost

Analog Signal Processing

Noise suppression  Main Idea: Attenuate the noise components

Speech Recognition  HMMs  States, transition probabilities and  Hidden states are words, output is audio signal produced by speaker  Recognition problem: what is the state of the system