Forum Post: RE: ADS1147 misbehavior at random condition
Hi,please find my comment below in bold.Without burn-out current enabled,Most of the boards are working. But, In 7 of 50 AI boards, ADC count is fluctuating from 0 to 0x7FFF for Open circuit and Short...
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Forum Post: RE: ADS131E08 CUSTOM DATA RATE
The ADS131E08 datarate is defined by the oversampling rate (OSR) setting of the converter and master clock frequency.The master clock limits for external clock are shown in the spec table of the...
View ArticleForum Post: RE: Urgent! TSW30SH84EVM configuration
I doubled checked last issue and observed that if I send a frequency of sin and cos at baseband at fbb = 100 MHz I don't see any sideband suppression but if I use a frequency baseband at fbb = 12 MHz I...
View ArticleForum Post: high precision bridge Measurement 25uV max
Hi,I want to read voltage of whetstone bridge by using ADC+internal PGA like ADS1230 but my problem is our load sel sensivity is 100uV/V and strain gauge's supportable excitation voltage is 0.1Volt...
View ArticleForum Post: RE: TVP5151 problem on s1d13515
If the 'good' channel is good with one input but bad with another input then the input part of the circuit is bad, not the TVP.Did you lift the input coupling capacitors when you did this experiment or...
View ArticleForum Post: RE: Source code DSP TMS230 for the MMB0 with ADS1299 EEG FE
May we contact you via the email address in your profile?
View ArticleForum Post: RE: ADS1248 doubts about driver, commands and work.
Hi Bob,The resistance values are 909K and 46K4. I will divide the resistance values by 10 and try again. But this can load the sensor I think.
View ArticleForum Post: RE: Corrupted data after powering up ADS1274
Mr Cammack -Where are you taking the DOUT signal from? With this device, we put in some logic to align the data with the SCLK output for higher frequency operation in FS mode. You may want to try...
View ArticleForum Post: RE: DXP + DAC8871
Hi.I am testing DAC8871 EVM with DXP tool. When using the square wave, it looks like the DAC is not meeting the slew rate parameter, mentioned in the data sheet 40V/us. Maybe I am missing something,...
View ArticleForum Post: RE: LDC1000 - Would this need to be certified as an intentional...
Mike,It is not an Intentional radiator. In order to release the EVM, we went through the internal compliance team about the same topic. Outcome was that we don't need to go through FCC certification as...
View ArticleForum Post: RE: Only getting negative values in ADS1231
Hi and sorry for my silly question.Thats the way 2s complement work.Best regards,Theo
View ArticleForum Post: Multiloads on DS90UR904Q deserializer parallel bus
I am wondering if the DS90UR904Q deserializer can drive multiple loads or is it meant for single point to point wiring?Currently we are deserializing data and sending it to multiple loads - one on the...
View ArticleForum Post: RE: ADS131E04 external clock
Thank you for your answer. I have checked (big) local distributors again and 2 of 3 doesn't have 2.048MHz oscillators in their offer and the last one has one but.. not in stock at the moment :) So...
View ArticleForum Post: RE: ADS1230
HI Ajith,Usually purchases are done through TI distributors. However, distribution may be limited to stock on hand if you need immediate delivery. I would suggest going to the ADS1230 landing page...
View ArticleForum Post: RE: Sample Code Available for LDC1000 ?
Hi Wayne,Thanks for evaluating our EVM! There are no particular software steps to initialize the LDC1000. For a specific application, you would set Rp min, Rp max, Sensor Frequency, and configuration...
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Forum Post: RE: DXP + DAC8871
Hello Armando,There are a few things in play here.A critical detail of all of this is that the bill of materials shows U2 as an OPA277 while the schematic seems to indicate an OPA211. Double-checking...
View ArticleForum Post: RE: Question for design 4 ADS1222 on board
Hi, Bob,Thanks for quick feedback. The analog input connect to AINP and AINN which is differential signal so I think no problem.
View ArticleForum Post: RE: LDC1000 wake up time
Hello Jaden,2ms is power-up time.Coming from the sleep mode it will take a few LC oscillation cycles to achieve stable oscillation, so the first 3 data samples may be somewhat inaccurate. After that...
View ArticleForum Post: RE: Question for data read from ADC131E08
Sorry, it should be for ADS131E08.
View ArticleForum Post: RE: Problem with a/d converter inputs drifting up
Hi Ron,Let's back up a bit. There are only a few things that can actually affect the measurement. One is a varying input and another is the reference. The are others of course, but those are the two...
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