Forum Post: ADS52J91: Documentation details
Part Number: ADS52J91 Other Parts Discussed in Thread: ADS52J90 , Tool/software: Hi, I was going through good ADC that supports both LVDS & JESD and i came accross ADS52J90 & ADS52J91. But for...
View ArticleForum Post: RE: AFE4300EVM-PDK: Questions Regarding AFE4300 for BCM Measurement
Hi Katelyn, Do you have any feedback? I managed to find a few answers to my questions but, i still have questions about the chip. Especially about calibration and test impedances. I would like to know...
View ArticleForum Post: RE: ADS124S08: Thermal pad connection in QFN package with...
Than You. That explains everything. Marcin.
View ArticleForum Post: RE: ADS52J91: Documentation details
Also please let us know whether both these devices are pin to pin compatible to each other. If we design a board with ADS52J91, will it work with ADS52J90 without any change?
View ArticleForum Post: RE: ADS1247: Anti-aliasing and filtering with software.
Hi Nimit Vachhani, What are the cutoff frequencies of your filters? Did you identify fMOD for the ADS1247? What kind of overvoltage protection do you need? The FAQ is intended to help you answer these...
View ArticleForum Post: ADS124S06: technical question
Other Parts Discussed in Thread: ADS124S06 Hello, I'm currently encountering some issues while debugging SPI communication: 1. We are using the ADS124S06 chip. When reading the chip ID (address 0x00)...
View ArticleForum Post: RE: DAC8571: Convert 0 to 2.5 VDc to 0 to 60 mV
Hi Nimit, The first stage of your circuit is a voltage divider. At lower DAC codes you're dividing down an already small signal and then feeding this to the op amp input. You need to make sure that...
View ArticleForum Post: AFE7950EVM: Use with TSW14J50
Part Number: AFE7950EVM Other Parts Discussed in Thread: TSW14J58EVM , AFE7950 , TSW14J50EVM , Tool/software: Hello, I would like to know if the AFE7950 evaluation board can be used with the data...
View ArticleForum Post: RE: DAC38J82: DAC38J82IAAV
Hi, this sounds like an assembly quality problem most likely, especially if the control circuit has been proven out in previous design revisions. Please inspect the quality of assembly.
View ArticleForum Post: RE: AMC131M03: Issue with DCDC Output When Controlled via SPI
Hi Omkar, Can you scope out and send your SPI initialization frames (DIN,DOUT,SCLK,CS)? Thanks.
View ArticleForum Post: RE: ADC12DL040: ADC12DL040 design single-ended input
Hi Hoang, The datasheet is pretty clear from the directions above. Please drive the positive input and the negative input should be connected to VCM with a 0.1uF cap to ground. Regards, Rob
View ArticleForum Post: RE: ADS7830: Reading full range
OK then - we have a few videos on the web describing how to drive the input and reference of a SAR converter. Please review these videos and try to verify that there is nothing influencing the...
View ArticleForum Post: RE: ADC12DL040: ADC12DL040 design single-ended input
Hi Hoang, Unfortunately there is no data taken or reference on operating this ADC with a single ended input. As this is a 20 yr old ADC, anybody who worked on this is no longer on the team and to...
View ArticleForum Post: RE: ADC3541: ADC3541 DDR mode
Hi Enhui, Using the EVM and GUI, I was able to generate a config for DDR Bypass mode. The cusotmer will need to program all of these registers in the same order. Below is the capture I took using the...
View ArticleForum Post: RE: ADC12DJ3200QML-SP: Overshoot Question
Hi, Yes, this is of concern. We do not guarantee the device if you violate the abs max recommendations for any given time period. Regards, Rob
View ArticleForum Post: RE: ADS1278-SP: Differential Input Impedance
Hello Albin, The ADS1278-SP differential input impedance is directly proportional to the inverse of modulator frequency. Figure 65 in the datasheet provides the formula: Zeff = 14kOhm * (6.75MHz/fmod)...
View ArticleForum Post: RE: ADS1278-SP: Differential Input Impedance
Keith, Do you expect that the +/-20% is a fairly fixed value related to processing? What variations can I expect with temperature and aging? Albin
View ArticleForum Post: RE: DAC8562: DAC Not Responding Even With Supposedly Correct SPI...
Hi Andrew, Oh, I see, I got it backwards. Your HW SPI was faster than SW SPI. In that case it likely isn't an issue with timing violations with the slower SW SPI. At this point I'm thinking the issue...
View ArticleForum Post: RE: DAC8562: DAC Not Responding Even With Supposedly Correct SPI...
That sounds like a good test. I'll try it out, maybe tomorrow. I think I should be able to add some NOPs in there to increase the delay. We have discovered undocumented debug and testing modes by...
View ArticleForum Post: RE: AFE7950EVM: Use with TSW14J50
Hi Thibault, The AFE7950EVM is not compatible with the TSW14J50EVM. As mentioned in the AFE webpage the TSW14J58EVM should be used for evaluation of the AFE7950EVM. To send and receive data on the...
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