Data Converters

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Data Converters

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Data converters
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  • Forum Post: SPICE (or other) models for data converters

    Rick Downs - WEBENCH Design Center
    Here's something I'd like to get some feedback on from the community: We offer SPICE macromodels for our amplifiers and some other linear products, but, at least in the precision space, have never done a SPICE macromodel for a data converter. The reason for this is that a true model for say...
    on Dec 4, 2009

  • Forum Post: Re: ADS7861/ADS1251 all synchronously sampling

    Cor
    Rick, The application is as follows. I want to measure two sensors at 24bit resolution and measure 3 analog encoders with 2 differential channels each (sin and cos) at least 12bit resolution. All signals must be sampled synchonously and at 10KHz sample rate. I like the ADS1278 especially the passband...
    on Feb 12, 2010

  • Forum Post: ADS7861's Questions

    Ken19261
    HI,everybody.I am new to hardware design and i currently doing a project regarding analog to digital data conversion. I am comstructing an induction motor and working on the feedback part now. I am facing problems on the SPI and the hardware (ADC) testing. 1. I designed a VHDL code for the interface...
    on Feb 28, 2010

  • Forum Post: ADS855xEVM Problems

    Ted Konetski
    I am using an EVM for the ADS8558 6 channel converter and am having a problem getting it to perform. First here is my purpose, have to sample 6 signals at 42KSPS. The signals are from 0 - 5V and the processing I do later on requires 16 bit resolution. Yes I know that the 8558 only does 12, I will...
    on Sep 23, 2010

  • Forum Post: TLC3578

    karthik K R
    Hai I am karthik. I am using TLC3578 to read single end voltages of range +5 to -5 Volt. I have used reference voltage of +4.096V at REFP and REFM is connected to AGND. I wanted to know am i right with the REFM connection because the TLC3578EVM Family pdf shows negative reference voltage should be...
    on May 28, 2011

  • Forum Post: ADS 1258 Features

    Talha Saleem
    hi, I am currently working on ADS1258. I wanted to know that How can a ADS1258 eliminate the need of a separate HPF and antialising filter before the MUX part in whole AFE??? Thanks...
    on Jun 8, 2011

  • Forum Post: ADS1258 harmonics and noise revisited

    Eduardo Pellini
    Greetings to everybody, We`re working with a ADS1258 for the sampling of three differential analog channels, rated from -2.5V to 2.5 V with a band f rom DC to around 2000 Hz . The AD has a voltage reference circuit with 2V5 and -2V5, with good stability. There is a buffer circuit with a OPA2727...
    on Jun 8, 2011

  • Forum Post: ADS7809 Low Sample Rate Usage

    Barry Berdanier
    I have an ADS7809 in an existing design. We are only sampling at around 100Hz. We are having a problem with crosstalk between adjacent samples with large dynamic ranges. Is it possible that we need to increase the size of the 2.2uF filter capacitors on the Cap and/or Ref pins of the ADS7809 because of...
    on Jun 10, 2011

  • Forum Post: AMC7823 default values

    Frank
    Hello, I'm using a AMC7823 Evaluation Module labled as: AMC7823_REV A BOM 6468330_REV D According to the AMC7823 DATA SHEET (SLAS453E-APRIL 2005-REVISED JANUARY 2010, Revision E) from the following page: http://www-s.ti.com/sc/ds/amc7823.pdf the AMC7832 should deliver default values ...
    on Jun 20, 2011

  • Blog Post: Keeping in touch...

    Kristina Arnold
    Welcome to the new High Speed Data Converters Announcements tab! We'll be using this area to post the latest and greatest in TI High Speed Data Converter products, along with other information we think you'll love. We'll post a ton of great stuff here, including, but not limited to: ...
    on Jul 19, 2011

  • Forum Post: ADS7863 on McBSP

    Daniel Haslimann
    Hi I'm trying to read out the ADS7863 by the McBPS of a C28346. Now I am confused about a timing issue that is pointed out in the manual. I am referring to the data sheet of the ADS7863 from January 2011. I connect both CONVST and RD together, and this signal is generated by the MFSXA signal...
    on Jul 20, 2011

  • Blog Post: Wowza!! Eight new low-power, dual-channel, 12- and 14-bit ADCs from 65 to 250 MSPS

    Kristina Arnold
    Today we announced eight new high-speed, ultra-low power consumption ADCs. These dual-channel devices are available in 12- and 14-bit resolutions at speeds from 65 to 250 MSPS. EVMs and samples are available for most of the devices today! Here’s the press release with links to more information…...
    on Jul 21, 2011

  • Blog Post: Get Your Signal Chain Basics: “Digital features in high-speed digital-to-analog converters”

    Kristina Arnold
    Robert Keller, who oversees our illustrious high-speed data converters systems and apps team, is a regular contributo r to the “Signal Chain Basics” series on EE Times . In his newest article, “ Digital features in high-speed digital-to-analog converters ,” Robert explains how...
    on Jul 25, 2011

  • Blog Post: Industry's lowest power 2- and 4-channel 1.25GSPS Digital-to-Analog Converters: DAC3484, DAC3482, DAC34H84 now in production!

    Philip Pratt
    These are now available for orders! Part Numbers and Product Descriptions – DAC3484, 4-channel 16-bit 1.25GSPS DAC with 312.5MSPS/DAC input rate, multi-row QFN package DAC3482, 2-channel 16-bit 1.25GSPS DAC with 625MSPS/DAC input rate, multi-row QFN package DAC34H84, 4-channel 16...
    on Aug 2, 2011

  • Forum Post: ADS1278 Clock Requirements (acceptable jitter)

    Jonathan Horne
    Can someone offer guidance on clock requirements for the ADS1278 24-bit sigma-delta ADC? We'd like to optimize SNR performance for a relatively low frequency input signal (~4kHz). We plan to clock the device at roughly 4MHz in high resolution mode. I am trying to specify a VCXO to use as the source...
    on Aug 19, 2011

  • Forum Post: ADS1274

    Baycan Akcay
    Hi, I am using ADS1274 EVM with TI delfino experiment kit(TMDSDOCK28335). I am trying sample data at high resolution, SPI discrete data mode, only using Dout1. I am supplying ADS1274 EVM from Ti delfino experiment kit. The delfino exp. kit is supplied by a computer via usb, generates 3.3V with...
    on Aug 25, 2011

  • Forum Post: Re: Multiple DAC7513s on same SPI bus

    John Schnellenberger
    Tony, Thanks for your detailed response. We are planning on using two of these DACs as well as a third IC on the SPI bus. Based on your explanation, I'm assuming that the loading effects will not be significant enough to cause any communication problems. Is that correct? Thanks. John S.
    on Sep 1, 2011

  • Forum Post: Precision Analog-to-Digital Converter (ADC) with 8051 Microcontroller and Flash Memory MSC1210Y5... I can't not download the .HEX file!

    Julio Matos
    I can't not download the .HEX file!
    on Sep 5, 2011

  • Forum Post: ADS79xx Charge injection

    Tom Roe
    I am looking for a detailed description of the ADS7953 so I can figure out how the different internal capacitors cause charge injection out to the Ain pins. I see the timing diagram in the data sheet but from that it looks like there is only one time at which charge injection occurs. From the timing...
    on Sep 21, 2011

  • Blog Post: Lowest power dual 14-bit 250MSPS ADS4249 ADC - now in production!

    Philip Pratt
    Checkout the world's lowest power dual 14-bit 250MSPS ADC, the ADS4249. Its now in full production. http://www.ti.com/product/ads4249 This is TI's 2nd generation, following the ADS62P49 with 60% lower power at 560mW, SNR >72dBFS and SFDR>80dBc. It has a similar pinout to the ADS62P49...
    on Oct 17, 2011

  • Forum Post: ADS8556 , parallel mode and endian issues

    David Henry52307
    I'm in my first project with the ADS8556 and am struggling to get correct looking data. My board is hard wired to use parallel, word and hardware modes. As I know the input voltage to various channels I can predict what values should be read in, but I'm nowhere close. I've probably...
    on Oct 18, 2011

  • Blog Post: Smallest, least-expensive, lowest-power 500-MSPS DACs

    Kristina Arnold
    In case you missed it, we recently announced the smallest, least-expensive and lowest-power dual 500-MSPS DACs. The 12-bit DAC3162 and 10-bit DAC3152 were designed for wideband transmit systems like base stations, software defined radio and portable test equipment. To dive a little deeper, check...
    on Nov 10, 2011

  • Blog Post: EE Times names DAC3162/DAC3152 "Product of the Week"

    Kristina Arnold
    So excited EE Times named our new low-power, 500-MSPS DACs - the 12-bit DAC3162 and 10-bit DAC3152 - "Product of the Week". What an honor! If you don't subscribe to the EE Times Products Newsletter or missed it last week, check it out below. Woo-Hoo! :-) ...
    on Nov 14, 2011

  • Forum Post: differential or single-ended???

    Manuel Malagon
    Hi everybody I have little experience in signal acquisition and now I´m facing a big problem, for some of you is something easy to understand so that´s why I need help. I have to design a system that has to acquire a signal. This signal is about 200mv p-p and in a frequency range from...
    on Nov 18, 2011

  • Forum Post: ADS7950 Configuration failure

    STAN POLIPAS
    Hello, I am using ADS7950 in AUTO1 mode. At power up ADS7950 configured to read CH2 and CH3 and voltage scale set to 5V. After about 500ms ADS7950 reconfigured to AUTO1 mode for CH0 and CH1 with 5V voltage scale. The problem is that occasionally ADS7950 does not reconfigure itself and remains in...
    on Dec 5, 2011
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