SAMP中的PSoC 3或PSoC 5可用吗？

我认为他们为什么不在PSoC 3和5中设置一个仪表放大器是因为在大多数情况下它是不需要的。您可以认为它嵌入在∑-ΔADC中，因为它具有高CMRR和高输入阻抗的差分放大器。
我的项目的主要问题是输入失调电压（±0.1MVPPSoC 3）。你能告诉我是否可以进行偏移校正，我怎么做？



     以下为原文
  I think the reason why they don't put an instrumentation amplifier in PSoC 3 and 5 is because in most cases it's not needed. You can consider it is embedded in the sigma-delta ADC as it has a difrential amplifier with High CMRR and high input impedance.
    The main problem for my project is the input offset voltage (±0.1mVfor PSoC 3). Can you tell me if it is possible to perform offset correction and how could I do it?

看看这个KB文章：HTTP://www. CyPress？ID＝4和；RID＝43218
鲍勃



     以下为原文
  Have a look at this KB-article: http://www.cypress.com/?id=4&rID=43218 
     
    Bob

这可能有帮助
HTTP://www. CyPress？COM/？DOCID＝35630
问候，Dana。



     以下为原文
  This might help -
   
     
   
    http://www.cypress.com/?docID=35630
   
     
   
    Regards, Dana.

嗨，摩蒙，
我们可以很容易地创建一个仪表放大器与2 PGA和运算放大器的PSoC3。CMRRR将取决于使用的外部电阻器（在运算放大器周围）的精度。
当做，
普拉文



     以下为原文
  Hi mmoron,
    We can easily create an instrumentation amplifier with 2 PGAs and an OP-Amp of PSoC3. THe CMRR will depend on the precision of the external resistors (around the Op-amp) you use.
     
    Regards,
    Praveen

嗨，Quijote，
我们可以很容易地使用偏移校正寄存器来执行偏移消除。请参阅注释，最大规格为100UV。在大多数情况下，这个值小于30UV。
除了链接发布，请参见下面的链接
HTTP://www. CyPress？COM/？DOCID＝32630
当做，
普拉文



     以下为原文
  Hi Quijote,
   
    We can easily perform offset cancellation using the offset correction register. Refer the ANNote that the max spec is 100uV. In most cases this value is less than 30uV.
   
     
   
    In addition to the link posted, see the link below
   
    http://www.cypress.com/?docID=32630
   
     
   
    Regards,
   
    Praveen

在SAMP问题中，你解决了什么问题？
为了减少共模信号和放大的主信号，所以必须使用像放大器一样的延迟放大器。
HAWE能创造出类似于SAMAMP的东西吗？



     以下为原文
   I cant acheive howe do you solve INSAMP problem.
     I need to reduce common-mode signal and amplified main signal.so i must use deferential in-put amplifier like INSAMP.
     hawe can create something like INSAMP?

这个怎么样？没有测试过！
Simule01.Zip
4.4兆字节



     以下为原文
          How about this? Not Tested!   

•   INS_AMP.Bundle01.zip 4.4 MB  
  
  

PGA在IA解决方案中存在的问题是PGA增益不精确。
从一个PGA到另一个显著降低CMRR。快速直流
分析将向您展示这一点。非匹配PGA到PGA AC RES
庞塞增加了这个问题。
数据表2中的PGAG错误在G＝50时显示+/- 10%，*/--AT为2%。
g＝1。这将极端地产生非常差的IA CMRR性能。
这是直流规格。
你必须为G所需的目标，CMRR，DC规格，AC规格，和
然后回到设计中。
最好的方法是一个精度R阵列外部和使用3个opAMPS内部。
计算的参考文献
问候，Dana。
IA.ZIP
3.9兆字节



     以下为原文
  The problem with using PGA's in a IA solution is PGA gain inaccuracy
    from one PGA to another degrades CMRR significantly. A quick DC
    analysis will show you this. And non matching PGA to PGA AC res-
    ponse adds to the problem.
     
    The PGA G error in datasheet 2.0 shows +/- 10% at G = 50, */- 2% at
    G = 1. This would at either extreme produce very poor IA CMRR performance.
    And this is DC specs.
     
    You have to set goals for G desired, CMRR, DC specs, AC specs,  and
    then back into the design.
     
    The best approach will be a precision R array external and use 3 OpAmps internal.
     
    Some references to make calculations -
     
    Regards, Dana.

•   IA.zip 3.9 MB  
  
  

下一步怎么样？仍然没有测试！
Simule02.Zip
4.8兆字节



     以下为原文
          How's next? Still Not Tested!   

•   INS_AMP.Bundle02.zip 4.8 MB  
  
  

相关双采样不产生CMRR，但产率很高。
高偏移，漂移，降噪，如果这是更多的问题，你可能
有。见AP附注，一个在CD上，另一个在信号链上。
校准。
问候，Dana。
邮政编码
855.6 K



     以下为原文
  Correlated Double Sampling does not produce CMRR but does yield very
    high offset, drift, noise reduction, if that is more of the problem you might
    be having. See ap notes attached, one on CDS,m the other on signal chain
    calibration.
     
    Regards, Dana.

•   CDS.zip 855.6 K  
  
  

我的第一篇文章的设置是错误的。（1）每个PGA增益必须设置大于2。（2）VREF必须设置VDA/2（最宽输入范围），这里是一个仿真图。
锑化铟
153.5 K



     以下为原文
          The Setting of my first post was wrong. (1) Each PGA gain have to set greater than 2. (2) Vref have to set Vdda/2 (most wide input range) Here is a simulation chart.   

•   INS1.JPG 153.5 K
  
  

pSOC700，PGA的使用降低了CMRR性能，因为
PGA到PGA匹配，在差分放大器方面非常差
性能。如果你放弃PGA，只使用R数组和OpAmp，
至少你可以获得良好的CMRR，而代价是输入Z。
产生与源Z不平衡相关的CMRR误差。
做DC分析，或者看我发布的早期参考文献，这将显示
你这个。可以用MATLAB或手工进行快速分析。
问候，Dana。



     以下为原文
  @PSoC73, the use of the PGA degrades CMRR performance due to
    PGA to PGA G matching, which is very poor in terms of differential amp
    performance. If you dropped the PGAs, just used the R array and an OpAmp,
    at least you could get good CMRR, at the expense of input Z which would
    produce some CMRR error associated with source Z imbalance.
     
    Do the DC analysis, or look at earlier refeneces I posted, and that will show
    you this. A quick analysis could be done in MATLAB or by hand.
     
    Regards, Dana.

你好，Dana，珊珊“KONBANWA”谢谢。三运算放大器类型为捆绑式02.Zip。我不担心，因为当我设计一个IN—AMP应用程序时，我将使用PSoC以外的适当的IPS-AMP。



     以下为原文
          Hi Dana-san "Konbanwa" Thank you. Three OP amp type is Bundle02.zip. I'm not worry, Becouse when I design a INS-AMP application, I'll use the proper INS-AMP outside of PSoC.   

为了结束这一点，LTC在CMMRR和有限CMRAMP上做了一个很好的注释。
和R比值。你可以很快看到，获得60分贝的CMRR是不可能的。
PSoC有很多原因，除了可能在室温下。这是单一的
差异放大器配置。实现3运放配置PGAs
IA输入级是不可能的，除非CMRR的& lt；40分贝对您感兴趣。
www. GoGoL.C./URL设计说明1023 LTC
注意AP注意不包括T和V和老化效应，但是方程式可以引导你分析它。
完美的MATLAB问题。
问候，Dana。



     以下为原文
  To close this out LTC did an excellent ap note on CMRR vs finite CMRRamp
    and R ratios. You can quickly see that to get 60 db of CMRR is not doable in
    PSOC for a number of reasons, except maybe at room temp. Thats in a single
    diff amp configuration. To implement the 3 OpAmp configuration PGAs in the
    IA input stage are out of the question, unless CMRR of << 40 db interests you.
     
    www.google.com/url     Design Note 1023 LTC
     
    Note ap note did not cover T and V and aging effects, but equations can lead you to analyzing that.
    Perfect problem for MatLab.
     
    Regards, Dana.

使用的IN -AMP的应用需要很好的规格，CMRR，VOS，线性度和良好的幅度精度。我最近经常使用这种芯片。AD8253：它的十倍幅度为1/10／100/1000，由数字增益管脚控制。CMRR为100dB（最小）偏移漂移为1.2UV/C（最大）。[ HTTP//www.类比.COM/En/专用放大器/仪器放大器/ AD8253/Studio/Studio.HTML]



     以下为原文
          The application that use INS-AMP needs much good specifications, CMRR, Vos, linearity, and good amplitude precision. I recently use this chip often. AD8253: Which has decade amplitude 1/10/100/1000, controled by digital gain pins. CMRR is 100dB(minimum) Offset drift is 1.2uV/C(maximum). [ http://www.analog.com/en/specialty-amplifiers/instrumentation-amplifiers/ad8253/products/product.html ]   

其他供应商也
Fix.T.COM/PARAMSECHCH/DOCS/ValueStReChest.TSP TI/NATION
WORK.COM/产品/仪器放大器LTC
IntersIL.CON/Eng/ValueStReChig.HTML Intersil
精确的R网络在PSoC 3/5中的应用
线性/精密/电阻网络LTC
www. MigPixald.COM/DATAGETET/DIXX.MVP/ID/3255标准
www. VisHay.com／NETWorks/Alrays/Reloer-NETWorks/VISHAY
问候，Dana。



     以下为原文
   Other vendors as well -
      
          focus.ti.com/paramsearch/docs/parametricsearch.tsp     TI/National
     www.linear.com/products/instrumentation_amplifiers       LTC
     www.intersil.com/en/parametricsearch.html                         Intersil
      
     Precision R networks to make a diff amp in PSOC 3/5 -
      
     parametric.linear.com/precision_resistor_network            LTC
     www.maximintegrated.com/datasheet/index.mvp/id/3255    Maxim
     www.vishay.com/networks-and-arrays/resistor-networks/     Vishay
      
     Regards, Dana.

我无法打开你的文件。我的应用程序只打开C字段。
关于SAMSP问题，你只需要使用外部的SIMAMP？
IR是唯一可能的方法吗？
我需要放大大约1000倍和减少共模信号。



     以下为原文
  I couldn't open your files. my application open just c fiels.
    about insamp problem you just use external insamp?
    Is ir the only possible way?
    I need to amplify it about 1000 times & reduce commen mode signal.

嗨，柏油，哪个文件你打不开？如果是我的捆绑文件，我可以再次上传。在N-AMP周围，看看这篇文章，真正的分期付款在这里。[ HTPP//wwwyCyPress？COM/？APP=论坛和ID ID＝2492和；RID＝82151



     以下为原文
          Hi tar, Which file you couldn't open?   
If is it my bundle files I could be upload again.   
Around INS-AMP, take a look this article, Real instalation is here.   
[ http://www.cypress.com/?app=forum&id=2492&rID=82151 ]   

你应该从CyPress网站免费下载PSoC Creator最新版本，它能够处理C文件和PSoC3的原理图。将下拉文件从以前的帖子解压缩到一个新的目录，并通过双击它打开项目文件。
鲍勃



     以下为原文
  You should download PSoC Creator latest version from the Cypress website for free, it is able to handle the c-files AND the schematics for the PSoC3. Unzip the downloded file from the previous post into a new directory and open the project-file by double-clicking on it.
     
    Bob