Precision Data Converters

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Precision Data Converters

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  • Forum Post: Re: ADS1247's result is unstable!

    He Winston
    data rate:5 sps,PGA:1.I have checked the datasheet,ENOB should be 21.5(19.1).
    on Dec 5, 2009

  • Forum Post: Accuracy of the IDAC

    D H
    Hello, I was wondering if anyone can help me understand the datasheet. According to the datasheet the maximum initial error for each IDAC is 6% of FS (page 5) ?! So, if I have IDAC set to 0.5mA the IDAC error is 6% of 0.5mA – Is this correct? This seems like a large error. Thanks, DH
    on Jan 10, 2011

  • Forum Post: Precision Data Converters ADS1247

    oralia nolasco
    Hi there: I has been working with ADS1247 , I added an external ADC to the Keyfob of CC2540 Mini Development Kit , it´s an ADS1247 communicating through the SPI0 alt 2 in CC2540 . Below I put the configuration that I had used for communication with 8051: AVDD=DVDD=3.3V AVSS=0V AINN=GNDsignal...
    on May 29, 2012

  • Forum Post: On ADS1247: Does ADC input have to be bipolar to use full range? I'd like to read positive numbers only but use full ADC range.

    Catalin Cristea
    Hi, The datasheet example (Fig. 85, Pg. 57) Shows a nice way of insuring that Ain0 can go above and below Ain1, so the full ADC range can be used. If I wanted to avoid Rcomp then Ain0 could only be positive relative to Ain1. Does this mean that I would be limited to (less than) half ADC range? ...
    on Jul 25, 2012

  • Forum Post: RE: ADS1278EVM-PDK Problem

    Errol Trunch
    Thanks for your reply! Here after I ground both the negative of CH1 and the generator. To note I am using a 10:1 attenuating probe for my generator. And here how it looks like. Not sure this is because I am not using a regular BNC cable.
    on Aug 9, 2012

  • Forum Post: Configuring an ADS1247...

    Daniel Morim
    Hi, I build this circuit to work with two 3-wires PT100: Well, now I wanna read AVDD (or DVDD) value, then 1st PT100 (RJ11_1) and then the 2nd PT100 (RJ11_2). Let's start from the beginning: AVDD measurement! I did: WriteSPI1(0x40); // WREG command WriteSPI1(0x03); // 4 registers - 1...
    on Sep 12, 2012

  • Forum Post: about ADS1146 Which Conversion does the customer use?

    Shinichi1
    Dear specialist. I am writing to ask you about aDS1146. It has two types of conversion control,STARTpin and SYNC mode. I think START pin is hardware conversion control and SYNC mode is software conversion. Which conversion is adopted in a maket? My customer needs a information and He wants...
    on Oct 1, 2012

  • Forum Post: About ADS1146 ,How can I know maximum value of electrical specifications?

    Shinichi1
    Dear specialists I am writing to ask you about ADS1146's electrical specifications. They don't have maximum value ,only describe typical value. How can I estimate the maximum value? I want to know especially offset error、offset drift、gain drift. Do you have any guideline or empirical...
    on Oct 1, 2012

  • Forum Post: Are ADS1247 and ADS1147 distinguishable by software?

    Aleksey Musin
    Hi, These parts have identical command set. Is there any way to distinguish them via SPI interface?
    on Oct 1, 2012

  • Forum Post: correct usage of ADS1247 to get high precision temperature reading

    varun dongre
    hey... i m a beginner in the field of precision data converters... i am making a high precision temperature controller using ADS1247 and arduino mega 2560 board. in the starting of the project i want to know some basic connection algorithms for ADS1247. i am trying to achieve an accuracy of 0.01C and...
    on Feb 23, 2013

  • Forum Post: interfacing of LMP90100 AFE

    varun dongre
    hey... searching TI components for required design is very easy and efficient. I wanna say thanks TI for this very easy and useful interface...I was looking for a high accuracy 24 bit ADC for temperatrure measurment with RTD(PT100) and endup my search when i came across the IC LMP90100. i read the...
    on Apr 29, 2013

  • Forum Post: SPI interface of lmp90100 with arduino...

    varun dongre
    he TI.. glad to know about this perfect AFE for sensor...i want to use this one in my application but i am lilll confused in using it. my first confusion is how i programe the internal registers.please make me understand in a programming aspect as i m a beginner in SPI communication... can i use...
    on May 2, 2013

  • Forum Post: ADS1248 2 CHANNEL CONNECTION FOR 4 LEAD STRAIN GAUGE

    SATYA VENKATA
    CAN ANY ONE PLEASE POST OR SUGGEST THE HARDWARE CONNECTIONS FOR 2 FULL BRIDGE STRAIN GAUGES FOR ADS1248 IS IT SIMILAR TO THE CONNECTIONOF RTD ? OR IT IS DIFFERENT? WE HAVE TO CONNECT THE BIAS RESISTANCE FOR ADS1248 REF. PIN OR NOT ? ANY SUGGESTIONS ARE APPRECIATED THANK YOU SATYA VENKATA
    on May 8, 2013

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