BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Brazil/East BEGIN:DAYLIGHT DTSTART:20380119T001407 TZOFFSETFROM:-0300 TZOFFSETTO:-0300 RRULE:FREQ=YEARLY;BYDAY=3TU;BYMONTH=1 TZNAME:-03 END:DAYLIGHT BEGIN:STANDARD DTSTART:20190216T230000 TZOFFSETFROM:-0200 TZOFFSETTO:-0300 RRULE:FREQ=YEARLY;BYDAY=3SA;BYMONTH=2 TZNAME:-03 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20210714T015502Z UID:CF7363A9-17A0-4107-8CAC-7E7FFA7874AC DTSTART;TZID=Brazil/East:20201109T143000 DTEND;TZID=Brazil/East:20201109T153000 DESCRIPTION:The growing demand for high speed and high precision Analog-to- Digital Converters (ADCs) dictates stringent design specifications for the amplifiers which are the basic building block for numerous architectures. The pipeline ADCs are commonly used for high-resolution broadband ADCs. T his architecture is based on switched-capacitor techniques\, then transien t response of the amplifier is of primary concern. The most demanding spec ifications for the amplifier are: i) high slew-rate needed to charge/disch arge the capacitors within a fraction of the time allocated for residue ev aluation\, ii) high transconductance gain required for fast linear settlin g iii) large DC gain for accurate final settling and iv) low power consump tion. Therefore\, the design of efficient operational transconductance amp lifiers that satisfy these constraints is not straightforward. Among sever al options\, the continuous-time modulator is the preferred one for high r esolution applications in the range of 1-200MHz. Recent studies show that over 50% of the sigma-delta modulator’s power consumption is expended in the loop filter\, which usually employs an active RC\nsolution. The desig n aspects of high gain broadband amplifiers that can satisfy these stringe nt requirements are the focus of this seminar. The first part is focus on the design of amplifiers intended for high-performance pipeline ADCs. The amplifiers are optimized for non-linear and linear settling\; relevant tec hniques to achieve these goals will be covered. The second part of the tut orial is devoted to the study of operational amplifier techniques for modu lators. The properties and design techniques for resistive loaded multi-st age amplifiers are revisited\; frequency stabilization techniques based on feedforward techniques are explained in detail.\n\nhttp://www.youtube.com /sscsedssouthbrazil\n\nSpeaker(s): Prof. Dr. Jose Silva-Martinez\, \n\nPor to Alegre\, Rio Grande do Sul\, Brazil\, Virtual: https://events.vtools.ie ee.org/m/247351 LOCATION:Porto Alegre\, Rio Grande do Sul\, Brazil\, Virtual: https://event s.vtools.ieee.org/m/247351 ORGANIZER:sandro.b.ferreira@ieee.org SEQUENCE:4 SUMMARY:DISTINGUISHED TALK Webinar: Design of Operational Amplifiers for Ad vanced Analog-to-Digital Converters by Prof. Dr. Jose Silva-Martinez URL;VALUE=URI:https://events.vtools.ieee.org/m/247351 X-ALT-DESC:Description: <br /><p>The growing demand for high speed and high precision Analog-to-Digital Converters (ADCs) dictates stringent design s pecifications for the amplifiers which are the basic building block for nu merous architectures. The pipeline ADCs are commonly used for high-resolut ion broadband ADCs. This architecture is based on switched-capacitor techn iques\, then transient response of the amplifier is of primary concern. Th e most demanding specifications for the amplifier are: i) high slew-rate n eeded to charge/discharge the capacitors within a fraction of the time all ocated for residue evaluation\, ii) high transconductance gain required fo r fast linear settling iii) large DC gain for accurate final settling and iv) low power consumption. Therefore\, the design of efficient operational transconductance amplifiers that satisfy these constraints is not straigh tforward. Among several options\, the continuous-time modulator is the pre ferred one for high resolution applications in the range of 1-200MHz. Rece nt studies show that over 50% of the sigma-delta modulator&rsquo\;s power consumption is expended in the loop filter\, which usually employs an acti ve RC<br />solution. The design aspects of high gain broadband amplifiers that can satisfy these stringent requirements are the focus of this semina r. The first part is focus on the design of amplifiers intended for high-p erformance pipeline ADCs. The amplifiers are optimized for non-linear and linear settling\; relevant techniques to achieve these goals will be cover ed. The second part of the tutorial is devoted to the study of operational amplifier techniques for modulators. The properties and design techniques for resistive loaded multi-stage amplifiers are revisited\; frequency sta bilization techniques based on feedforward techniques are explained in det ail.</p>\n<p><a href="http://www.youtube.com/sscsedssouthbrazil">http://ww w.youtube.com/sscsedssouthbrazil</a></p> END:VEVENT END:VCALENDAR