Hello, I am looking for some facts or specifications about an ADC quantizer. Firstly I want to know if it possible for quantizers to dynamically change their resolution? or is it fixed for a quantizer. If the quantizer can actually change its resolution, I would be very grateful if somebody could direct me to a site or a article about this mechanism. Specifically; 1) The connection between resolution and sampling rate 2) Resolution and power consumption. Any wisdom or reference is greatly appreciated. Thank you.
ADC quantizer question.
Started by ●October 9, 2009
Reply by ●October 9, 20092009-10-09
On 09-10-2009 at 08:33:39 m26k9 <maduranga.liyanage@gmail.com> wrote:> Hello, > > I am looking for some facts or specifications about an ADC quantizer. > Firstly I want to know if it possible for quantizers to dynamically > change > their resolution? or is it fixed for a quantizer.My first thought was oversampling, shortly it is changing resolution within increasing sampling rate (and there is a strict formula on that) Very, very good tutorial is here: http://www.lr.ttu.ee/irm/sideseadmete_mudeldamine/AD_MT_Tutorial.pdf -- Mikolaj
Reply by ●October 9, 20092009-10-09
Dear Mikolaj. Thank you very much. It is indeed an excellent tutorial. Has lot more contents than the textbook I was using. Thank you again.
Reply by ●October 9, 20092009-10-09
On 10/9/2009 1:07 AM, Mikolaj wrote:> On 09-10-2009 at 08:33:39 m26k9 <maduranga.liyanage@gmail.com> wrote: > >> Hello, >> >> I am looking for some facts or specifications about an ADC quantizer. >> Firstly I want to know if it possible for quantizers to dynamically >> change >> their resolution? or is it fixed for a quantizer. > > My first thought was oversampling, > shortly it is changing resolution within increasing sampling rate > (and there is a strict formula on that) > > Very, very good tutorial is here: > http://www.lr.ttu.ee/irm/sideseadmete_mudeldamine/AD_MT_Tutorial.pdf >I don't know who Walt Kester is, but I'm a fan! That's an excellent reference for all things having to do with ADC/DAC technology and issues. -- Eric Jacobsen Minister of Algorithms Abineau Communications http://www.abineau.com
Reply by ●October 9, 20092009-10-09
Eric Jacobsen <eric.jacobsen@ieee.org> writes:> On 10/9/2009 1:07 AM, Mikolaj wrote: >> On 09-10-2009 at 08:33:39 m26k9 <maduranga.liyanage@gmail.com> wrote: >> >>> Hello, >>> >>> I am looking for some facts or specifications about an ADC quantizer. >>> Firstly I want to know if it possible for quantizers to dynamically >>> change >>> their resolution? or is it fixed for a quantizer. >> >> My first thought was oversampling, >> shortly it is changing resolution within increasing sampling rate >> (and there is a strict formula on that) >> >> Very, very good tutorial is here: >> http://www.lr.ttu.ee/irm/sideseadmete_mudeldamine/AD_MT_Tutorial.pdf >> > > I don't know who Walt Kester is, but I'm a fan! > > That's an excellent reference for all things having to do with ADC/DAC > technology and issues.It *is* a very nice reference. He looks like he was (or is) an Analog Devices engineer - probably the type that writes their application notes. I guess these *are* application notes? -- Randy Yates % "Bird, on the wing, Digital Signal Labs % goes floating by mailto://yates@ieee.org % but there's a teardrop in his eye..." http://www.digitalsignallabs.com % 'One Summer Dream', *Face The Music*, ELO
Reply by ●October 9, 20092009-10-09
On pi�, 09 pa� 2009 19:03:06 in article news:<m3bpkgwldh.fsf@ieee.org> Randy Yates wrote:>>> Very, very good tutorial is here: >>> http://www.lr.ttu.ee/irm/sideseadmete_mudeldamine/AD_MT_Tutorial.pdf >>> >> >> I don't know who Walt Kester is, but I'm a fan! >> >> That's an excellent reference for all things having to do with ADC/DAC >> technology and issues. > > It *is* a very nice reference. He looks like he was (or is) an Analog > Devices engineer - probably the type that writes their application notes. I > guess these *are* application notes?Newer versions here: D/A Converters - Tutorials http://www.analog.com/en/training-and-tutorials/tutorials/design-center/products/digital-to-analog-converters/da-converters/resources/index.html
Reply by ●October 9, 20092009-10-09
> >I don't know who Walt Kester is, but I'm a fan! > >That's an excellent reference for all things having to do with ADC/DAC >technology and issues. > >-- >Eric Jacobsen >Minister of Algorithms >Abineau Communications >http://www.abineau.com >Walt has been working at ADI for many years. He is the editor of Data Conversion Handbook and these tutorials are just the excerpts from there. You can find the whole book here: http://www.analog.com/library/analogDialogue/archives/39-06/analog_digital_conversion.zip --Alexander
Reply by ●October 9, 20092009-10-09
"Alexander Sotnikov" <sotnikov@scideco.ru> writes:> Walt has been working at ADI for many years. He is the editor of Data > Conversion Handbook and these tutorials are just the excerpts from > there.Ah! I have a 1986 copy of that book! It is quite excellent.> You can find the whole book here: > http://www.analog.com/library/analogDialogue/archives/39-06/analog_digital_conversion.zipThank you! -- Randy Yates % "Though you ride on the wheels of tomorrow, Digital Signal Labs % you still wander the fields of your mailto://yates@ieee.org % sorrow." http://www.digitalsignallabs.com % '21st Century Man', *Time*, ELO
Reply by ●October 10, 20092009-10-10
Reply by ●October 22, 20092009-10-22
On Fri, 09 Oct 2009 13:03:06 -0400, Randy Yates <yates@ieee.org> wrote:>Eric Jacobsen <eric.jacobsen@ieee.org> writes: > >> On 10/9/2009 1:07 AM, Mikolaj wrote: >>> On 09-10-2009 at 08:33:39 m26k9 <maduranga.liyanage@gmail.com> wrote: >>> >>>> Hello, >>>> >>>> I am looking for some facts or specifications about an ADC quantizer. >>>> Firstly I want to know if it possible for quantizers to dynamically >>>> change >>>> their resolution? or is it fixed for a quantizer. >>> >>> My first thought was oversampling, >>> shortly it is changing resolution within increasing sampling rate >>> (and there is a strict formula on that) >>> >>> Very, very good tutorial is here: >>> http://www.lr.ttu.ee/irm/sideseadmete_mudeldamine/AD_MT_Tutorial.pdf >>> >> >> I don't know who Walt Kester is, but I'm a fan! >> >> That's an excellent reference for all things having to do with ADC/DAC >> technology and issues. > >It *is* a very nice reference. He looks like he was (or is) an Analog >Devices engineer - probably the type that writes their application notes. I >guess these *are* application notes?Hi Randy, you're right. Some years ago I called Walt Kester to warn him of a rogue Interent site that illegally posted a copy of one of Walt's books. He is a nice guy. m26k9 might want to have a look at: http://www.analog.com/processors/learning/training/design_techniques.html See Ya', [-Rick-]
