High Speed Data Converters

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High Speed Data Converters

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  • Forum Post: Increasing the AD-system precision with 2 or more ADCs

    Dmitry Vasilenko - Arrow
    Colleagues, could you give me some links to app. notes that discuss the issue how to increase the AD-system precision with 2 or more ADCs. We are looking for a solution to split a dynamic range into zones and scale them to ADC full scale dynamic range. Alternatively, we think about a possibility...
    on Nov 16, 2009

  • Forum Post: Data acquisition in the 500MHz range for decay time measurements

    flix
    Hi, I would like to use the ADS5474 14bit/400MHz AD, possibly interleaced, to trace a decay curve. The decay curve will start at a voltage, and then decay typically exponentially to zero. I just ordered the ADS5474 ADX evaluation board - after reading the documentation I think I will be happy with...
    on Nov 5, 2009

  • Forum Post: Multiple Channels from a Single Channel ADC - Is it feasible?

    Alex52381
    Hello, I'm looking to add an analog to digital converter to my design. After looking through the various TI options, I'm starting to think that it might be more cost effective to buy a single channel ADC and somehow multiplex diffrent analog signals to it. I know this can be done, as various...
    on Jul 16, 2010

  • Forum Post: interfacing ADS5400EVM and DAC5682ZEVM with altera Stratix IV E development kit

    juli martin
    hello I am working with altera FPGAs and i need to connect the DAC and ADC evalution modules from texas instruments to the altera Stratix IV E development kit like apears in this link: http://www.ti.com/ww/en/analog/highspeeddataconvertersaltera/ There is any project example in quartus(or some...
    on Dec 2, 2010

  • Forum Post: DDR-to- offset binary solution?

    Robert Livingston
    Is there a recommended solution for use of the AD5481,2,3 series of ADC converters with the GC5016 DDC? The ADC has offset-binary LVDS output, while the DDC has two-complement input. I think it can be done using a LVDS receiver (e.g. SN75LVDT386) with reversed MSB lines, but I suspect that there may...
    on Jan 22, 2011

  • Forum Post: usable bits of ADC

    kevin17291
    1) When using an ADC to sample and convert an AC signal with DC component, do we need to conbine both the DC errors (offset, non-linearity, etc.) and AC errors (SINAD) in order to calculate the usable bits of an ADC? 2) An ADC system used for signal level measurement: Is there a systematic calculation...
    on Nov 17, 2009

  • Forum Post: ADS5560 Noisy Output Spectrum

    Neema Daneshvar
    Hello Engineers, Using the ADS5560 EVM, I am trying to reproduce the results shown on page 27 of the datasheet for the ADS5560 chip. The image below shows the output spectrum I generated with a 2 MHz input tone from a signal generator and a 33MHz input clock. It seems that the spectrum is quite noisier...
    on May 11, 2011

  • Forum Post: ADS805 ADC application notes?

    Matt Southgate
    I've looked and failed to find any application notes for this part, and relying on the datasheet I am left unsure about configuration of the part. For a 5v pk-pk input around 2.5v, I know to connect SEL to GND (Table 1). I want to use the internal voltage references and cannot rely on the steady...
    on Jun 7, 2011

  • Forum Post: High Speed Data Converters　ＤＡＣ５６７５Ａ

    peng li77920
    Dear TI　engineer, I did not completely understand the meaning of VTT on Page 16 in the DAC5675A-SP datasheet, and didn't know how to connect it either . And the method of connecting the CLK and CLKC to the differential LVPECL source is not very clear to me, particularly the resistors net,in the...
    on Jun 28, 2011

  • Forum Post: Symbol for Schematic / PCB design for ADS5481

    Aditya Satpute
    Hi , I am looking for the ADS5481 QFN64 footprint symbol. Unable to locate it on the website. I plan to interface it with an FPGA for DSP applications on FPGA.
    on Aug 31, 2011

  • Forum Post: ADS6144：What is the number of FFT points in the specs sheet's typical characteristics?

    Nelson Hall
    TI, To help me verify my design, how many points were taken to produce the following FFT shown in the spec sheet? Is this only an FFT or was a PSD calculated? Any help is apprecitated. Regards, Nelson
    on Sep 13, 2011

  • Forum Post: ADC14155 Timing

    Dave Altum
    The data sheet provides typical timing of CLK to DAT = 2.0 ns. I must do a worst case analysis and need the best case and worst case timing of CLK to DATA and CLK to DRDY. Is this data available? If not can it be bounded?
    on Nov 14, 2011

  • Forum Post: Xilinx FPGA code to interface with TI ADS4246EVM

    Jacob Neumann
    I am working with the ADS4246EVM and would like to read it with the Xilinx ML402 Eval Platform. It has a Virtex 4 on board (XC4VSX35). I have seen people request the Xilinx ISE files for the TSW1200EVM also with Virtex 4 on board (XC4VLX25) and I would like to be emailed these files too to help me...
    on Oct 26, 2011

  • Forum Post: ADC Selection Help

    Tidus
    I am looking for help selecting an ADC that will give me at least 12bit resolution, sampling at >100MSPS, and 200MHz input Bandwidth. Ideally the input would be 2V8 DC but I can attenuate and buffer my signal if I have to. With this in mind, I have looked at the ADS62P28 and ADS62P25 and they meet...
    on Feb 6, 2012

  • Forum Post: Re: TLC5540 with PIC18F4550

    Janaranjana Sampath
    Matt At first i need to thank for your reply. i have another problem regarding the TLC5540 . that is; can i give a signal to the input (analog in of TLC5540 ) straightway without any ic in between TLC5540 and analog in. some configurations were used as below.. do i need to use below methods...
    on Mar 1, 2012

  • Forum Post: Re: TLC5540 with PIC18F4550

    Janaranjana Sampath
    I couldnt mention this in my earlier post. my analog in range is 0v to 2.28v. i have a problem with the clock signal. Here im going to use 5MHz(i have 5MHz crystal) . for the clock circuit how can i use this crystal?? thanks in advance regards sampath
    on Mar 1, 2012

  • Forum Post: Re: TLC5540 with PIC18F4550

    Janaranjana Sampath
    Hi Matt, If I use a latch ,it ll be possible to get rid of the skew problem ? regards sampath
    on Mar 10, 2012

  • Forum Post: Minimum Clock Frequency of High Speed Data Converters

    Vineet Kumar Singh
    High Speed Data Converters usually have Minimum Clock Frequency mentioned in the data sheet. What happens when a clock below this frequency is used. Does the ADC stop working altogether or some of the performance parameters are degraded and how much degradation occurs. For example clock frequency...
    on Feb 28, 2012

  • Forum Post: Re: ADC12D1800RFRB fmc data stream to ML605

    Simon Damphousse
    Dear Yasemin, There is no sample code availble at this time but we are working on getting that functionality for the ML-605. Time estimate is about 4-6 weeks from now. Please check back with me mid April and I will provide you with a status. Regards, Simon.
    on Mar 15, 2012

  • Forum Post: For adc12d500rf,How to expand the analog differential input full scale range?

    guoping Lee
    Hello As the datasheet said the analog differential input full scale range of adc12d500rf is 1000mv,the range is too small for my project,How can i expand the range to 5000mv?
    on Mar 20, 2012

  • Forum Post: About analog Differential input range of adc12d500rf?

    guoping Lee
    Hi everyone,The datasheet said the max of analog differential input range of adc500rf is 1000mv? but the Operating Rating of adc12d500rf said . what's this meaning?what does 20% duty cycle mean?
    on Mar 20, 2012

  • Forum Post: Question regarding using ADC12D1X00RFRB Reference Board/Wave Vision 5

    M P
    I am using the ADC12D1X00RFRB reference board with Wave Vision 5 to evaluate a TI ADC. I am able to use the internal clock with a signal generator to look at an an input signal using the Wave Vision 5 software. According to the manual and the software options in Wave Vision 5, I am supposed to be able...
    on Mar 22, 2012

  • Forum Post: Re: TLC5540 with PIC18F4550

    Janaranjana Sampath
    Hi Matt, I have encounted a problem when drive the circuit(in PCB). without analog input ,that pins shows a voltage about 1.7v . I don't know the reason for it. i guess if it is properly working there should be the value "0v". the Schematic of the ADC in PCB is below shown. can u help...
    on Apr 3, 2012

  • Forum Post: TLC5540 with PIC18F4550

    Janaranjana Sampath
    Hi all, I'm going to use TLC5540 with PIC18F4550 microcontroller. Do I need 74AC573 IC when interfacing microcontroller and ADC . (I'm referring the application note "Interfacing the TLC5540 Analog to Digital Converter to the TMS320C203-80 DSP (APPLICATION REPORT: SLAA032)"...
    on Feb 21, 2012

  • Forum Post: ADS6445

    pavel tr
    Hello people. excuse for my english. I have some questions about ADC ADS6445. ADC has 2 gain parameters: "CORSE GAIN" and "FINE GAIN". Can I use this parameters together(at the same time, summary)? I need a gain about 3x, or 9.5dB. CORSE GAIN(3.5dB) + FINE GAIN(6dB) = 9.5 dB or 3x...
    on Jun 15, 2012
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