Forum Post: RE: ADC3663: FCLK duty cycle 55/45 when using 18 bit mapping
Hi Joseph, yes, I thats the issue. I was under the assumption, that FCLK gets adjusted according to my config. But I recently came across the following text in ADC3663 datasheet (sbas991b, page 44):...
View ArticleForum Post: RE: TLV62085: [D1COMPANY] Product design inquiries
Hi Josef, 1. Do you have seen this behavior on more than 1 unit? => This occurred in 1 out of 8 cases. 2. Is this happening after startup only? => This occurs after first turning on the power at...
View ArticleForum Post: ADC3683EVM: Access to 20-bit mode GUI selection and bit...
Part Number: ADC3683EVM Other Parts Discussed in Thread: ADC3683 Tool/software: I use the ADC eval board (ADC3683EVM).My plan had been to use the control program provided by TI (ADC35XXEVM GUI, as...
View ArticleForum Post: RE: ADS1672: Regarding the Future of the ADS1672
Hello Valentin, The ADS1672 device is fully active and built on a modern process node. There are no plans to obsolete this device. We had to obsolete the evaluation board because the software was no...
View ArticleForum Post: RE: ADS7038: Erroneous ADC values being returned
Hi Darren, I think you've got a clear understanding of this device down! It is important to note that when programming the device to switch to a different channel, this channel's data will be output 2...
View ArticleForum Post: RE: ADC128S102-SEP: Input rise/fall times
Hi Guido, There aren't any strict rise/fall time requirements for this device. Below is a thread with further discussion on the rise/fall timing requirements. I hope it provides some clarity....
View ArticleForum Post: RE: ADS7142-Q1: Schematic review
Hello, Since this would seem to be a slow moving signal for temperature sensing, I would expect this configuration to work well! Thanks for sharing. Regards, Joel
View ArticleForum Post: RE: ADC081C021: ADC081C021CIMMX/NOPB
Edi, I see you have reopened this thread. Is there something else I can help you with, or have I failed to answer your questions? Regards, Joel
View ArticleForum Post: RE: ADC081C021: ADC081C021CIMMX/NOPB
Issue is that input is 3v, however I2C read is: D15: 1 D14: 1 D13: 1 D12: 0 D11: 0 D10: 0 D09: 0 D08: 0 D07: 0 D06: 0 D05: 0 D04: 0 D03: 1 D02: 1 D01: 1 D00: 0 As per data sheet D11 to D4 value is 00,...
View ArticleForum Post: RE: AFE4490SPO2EVM: Adding reverse voltage at Photodiode.
Hello Hyeon-Gu, Thank you for your post. The bias voltage on INP and INN are set internally by the TIA front-end. The typical bias voltage is 900 mV. It is not possible to apply a direct 0V bias. The...
View ArticleForum Post: RE: ADC081C021: ADC081C021CIMMX/NOPB
Hi Edi, I can definitely help you out with this. Since D14, D13, D12, D3, D2, D1, and D0 are supposed to always return 0, this suggests you are reading from the wrong register (though I'm not sure...
View ArticleForum Post: RE: LMP90080-Q1: Values won't update
Hi Levi De Leus, I replicated your settings on my EVM, and I do not see any issues. I was able to get the IDACs to output and read back the voltage across a resistor Can you provide logic analyzer...
View ArticleForum Post: RE: TLV2548: TLV2548CPW
Hi Hong, Unfortunately I wasn't able to find anything else that would be wrong from your captures. My only recommendation then would be to verify your timing parameters. Regards, Joel
View ArticleForum Post: RE: ADS1286: ADS1286UL/2K5
Hello Zhang, Sorry for the delay here. We are able to confirm, based on the information in the pictures you sent above, that the material is the ADS1286UL even though the marking does not match. We...
View ArticleForum Post: RE: AFE7225: Differential Clock Input Level
Hi Brady, I will have to do a bit of research on this as this part is old, your LVDS clock should be fine. However, if you can use a DIFF PECL style clock swing, that is always better in performance...
View ArticleForum Post: ADC3683: SPI write utility
Part Number: ADC3683 Tool/software: The supplied 20-bit_Configs.txt file defines SPI writes for configuration. The question is if ther is a way to load that file through the ADC35xx_EVM_GUI? The...
View ArticleForum Post: RE: ADS54J60EVM: Reducing the interleaving spurs
Hi LK, No you won't be able to eliminate the IL spurs completely, this is product of interleaving architectures unfortunately. If you let me know you application requirements, I can help you down...
View ArticleForum Post: RE: ADS131A02: Problem with ADS131A02 and SPI Communication using...
Hi Juan Esteban Botero Rodriguez, The ADC appears to be setup correctly, given the information you have provided Can you provide logic analyzer plots showing the data you are sending to and receiving...
View ArticleForum Post: RE: ADC12DJ5200RFEVM: Trouble in setting JMODE5
Hi, Eric-San. One of the factors that caused this phenomenon seems to be that the LMFC Buffer Size was too small. After changing the LMFC Buffer Size from 128 to 1024, the sine wave could be captured....
View ArticleForum Post: RE: AFE4490SPO2EVM: Adding reverse voltage at Photodiode.
If I apply reverse bias to the photodiode and connect a Bias Tee structure to the anode and cathode, would this allow normal operation without causing a voltage difference between INN and INP?...
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