Forum Post: RE: LM98620 eval board schematic
Hi Syed, 1) Here is the LM98620 bench board documentation (Board / Gerber files, schematic, floor plan, BOM). Note that the LM98620 uses the LM98618 bench testing board ( Note: The board is not...
View ArticleForum Post: RE: LOG114- Positive voltage output issue
Hello, Somebody please reply. Its very urgent. I trusted the TI's simulation software but it went wrong. Please share me your thoughts ASAP. Thanks, Prabhu
View ArticleForum Post: RE: LOG114- Positive voltage output issue
Prabhu, I am reviewing your LOG114 application circuit. Is this a newly developed circuit, or one that has worked correctly before and you are just now having problems with performance? Regards, Thomas...
View ArticleForum Post: RE: LOG114- Positive voltage output issue
Hi Prabhu, I have carefully reviewed your LOG114 circuit and don't see anything grossly incorrect about it. Operating in voltage input mode its not a LOG114 strong-point, but it is doable if only three...
View ArticleForum Post: RE: LOG114- Positive voltage output issue
Hi Thomas, Thanks you very much for the detailed analysis. This is a newly developed circuit and we have not used before. We have connected the exposed thermal pad to the Ground and not on V-. May this...
View ArticleForum Post: RE: LOG114- Positive voltage output issue
Hi Prabhu, The PowerPad on the LOG114 package connects to the die substrate. Tying it to the most negative circuit potential V- keeps the individual transistors on the die electrically isolated....
View ArticleForum Post: RE: LOG114- Positive voltage output issue
Hello Thomas, I tried by connecting the thermal pad to V- but there is no good luck, there is no improvement in the performance. I think the problem is something else, not getting any clue. The output...
View ArticleForum Post: RE: LOG114- Positive voltage output issue
Hi Prabhu, The LOG114 is capable of developing very high transimpedance gain and low-level "noise" currents can be amplified greatly. The output can be contaminated with noise which end up with an...
View ArticleForum Post: LM98714 AFE Data Output
I use the LM98714 with a CIS-Module on the red Color input. My question is about the data output for one Color (red). The AFE gives me output data like this HEX-Stream 9A 5D 00 00 00 00 9A 5D It Looks...
View ArticleForum Post: TSC2007 PENIRQ oscillation
All functions of the TSC2007 are working as expected, but the PENIRQ, between interrupts, oscillates. Whether in power down with IRQ enable, or, ADC off with IRQ enable, oscillation is present . The...
View ArticleForum Post: RE: TSC2007 PENIRQ oscillation
Hi Dan, Could you show me some waveforms that you captured using a scope? Andy
View ArticleForum Post: RE: LM98714 AFE Data Output
Hello Steffen, I am moving your post to the Imaging Forum that covers the LM98714 device.
View ArticleForum Post: LMP91200 - Any alternative that supports Temp Sensor + SPI?
Hi, Based on the earlier version of LMP91200 (Rev C datasheet), customer of ours designed this in an application to support Temp sensor and pH sensor both. This is no longer available with the deletion...
View ArticleForum Post: RE: LM98714 AFE Data Output
Hi Steffen Is your CIS module a single output monochrome or single output sequential-color sensor? If it is monochrome you should be using Mode 1a-R Mono. Please refer to the MODE 1A description on...
View ArticleForum Post: RE: LM98714 AFE Data Output
Hello Jim, thanks for the answer. I use already the 1a-R Mode. I found out new perceptions. After I plug in my circuit to power supply it works fine but when I reset my uC (STM32F4) the old output data...
View ArticleForum Post: RE: LM98714 AFE Data Output
Hi Steffen Please refer to Table 64 on Page 65 of the datasheet. Best regards, Jim B
View ArticleForum Post: RE: LM98714 AFE Data Output
Thanks for the help. That was the missing puzzle piece. I have forgotten the standby bit.
View ArticleForum Post: SensorTag pH Sensor firmware download
I am using TI's SensorTag and have an interest in developing my own devpack. I have been looking at the designs for the pH Sensor devpack as a reference and on page 23 of the following link (...
View ArticleForum Post: Hope add data compression feature in AFE58xx
Dear TI developers, Is it possible to add data compression feature in subsequent AFE58xx devices? It will significantly reduce the difficulty to get AFE data in FPGA. Since in front-end data is...
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