Forum Post: RE: ADS114S08: Bipolar reference voltage configuration
Hi Amol, I don't see any large issues with the schematic accept that you will need to have a capacitor at least 330nF between the AVDD and AVSS pins for stability reasons. This is a required capacitor....
View ArticleForum Post: ADS1675: Single-Cycle Settling vs Fast Response
Part Number: ADS1675 Is the ENOB (Effective Number Of Bits) for the single-cycle settling setting the same as the fast response setting in the low-latency filter mode of the ADS1675 ? If so then why?...
View ArticleForum Post: RE: TLV2553: Output pins not going low
Thanks for the replies. The level shifter pin is high (thereby releasing the inhibit) and the FPGA pins are definitely setup as inputs. The problem is the signals between U25 and U27 however, so I'm...
View ArticleForum Post: RE: ADS124S08: INMUX and IDAC Switching Speed
Thank you for your reply and explaination. I fully agree that we have an analog settling issue. That is also why I came up with the IDAC settling time. I also tried removing all filters by just adding...
View ArticleForum Post: ADS1298 Decoupling/Bypassing
Part Number: ADS1298 Hi, I have some questions about decoupling/bypassing capacitors placement. My design uses bipolar supply mode. The datasheet recommends the placement of the mentioned capacitors...
View ArticleForum Post: RE: ADS124S08: INMUX and IDAC Switching Speed
Hi Jonas, Unfortunately measuring the voltage at the reference resistor does not tell you the settling time of the IDAC current but rather the settling time of the reference voltage. The reference...
View ArticleForum Post: RE: DAC8734: DAC READ CONTROL
Hello, Uttam from my team will cover this topic for you on Monday next week. Thank you!
View ArticleForum Post: RE: ADC128S102: IBIS model
Hello, Let me follow up on that request, and let you know Regards Cynthia
View ArticleForum Post: RE: ADS1262: Voltage measurement drift
Hi Eduardo, Do you have a 5V bench supply that you can use to power the ADC + bridge? I'd recommend using the same supply to excite the bridge as well as the ADC, this way you'll know that the...
View ArticleForum Post: ADS124S08: Part selection help: Difference between ADS124S0x and...
Part Number: ADS124S08 Hi, Trying to understand - other than sample rate, number of channels and package options. What are the primary differences between - ADS124S0x and ADS1248 . Especially in terms...
View ArticleForum Post: RE: ADC12DJ3200: strange behavior vs temperature
Hi Vincenzo I'm not aware of any thermally related issues for the DAC38RF89 other than the requirements in the Recommended Operating Conditions and Absolute Maximum Ratings sections of the datasheet....
View ArticleForum Post: RE: ADS1220: ADS1220: reading data without DRDY. RDATA problem
I am still facing some major problem and cant read any valid data. In a loop I am setting REG1 to measure temperature, wait about 60ms and try to read values. Received buffer looks randomly- eg. 0x04...
View ArticleForum Post: RE: ADS1261: What is the implementation of the handleSPIerror...
Thank you very much for your reply.
View ArticleForum Post: RE: ADS1220: ADS1220: reading data without DRDY. RDATA problem
Just read my code one more time and understood what I have done: setting REG1 there is missprint & not |. I was clearing this register. Will check it later
View ArticleForum Post: RE: ADS124S08: Part selection help: Difference between ADS124S0x...
Hi SmartEngr, The ADS124S08 is an updated version of the ADS1248 with additional features. The ADS124S08 is capable of doing everything the ADS1248 . In addition the reference voltage is changed to...
View ArticleForum Post: RE: ADS1220: ADS1220: reading data without DRDY. RDATA problem
Hi Michal, The & instead of | will write 0x00 to Register 1 as you stated. That is definitely an issue. The very first conversion after power-up will require the START command to be issued to start...
View ArticleForum Post: RE: ADS124S08: Part selection help: Difference between ADS124S0x...
Thanks Bob, that's most beneficial. Appreciate your help very much.
View ArticleForum Post: RE: DAC39J84EVM: Question about choice of analog output transformers
Weiyu, By increasing the value of R135, the IOUT current of the DAC will decrease, which will allow you to reduce the differential voltage. See sections 7.3.27, 7.3.28 and 7.3.29 of the data sheet for...
View ArticleForum Post: RE: DAC39J84EVM: Question about choice of analog output transformers
Hi Jim, Sorry, I was asking if DAC3XJ8X can really produce a constant output voltage, after I bypass the balun. Thanks Weiyu.
View ArticleForum Post: [FAQ] How does the digital filter frequency response of a...
Can you explain how the digital filter frequency response of a Delta-Sigma ADC scales with clock frequency? Regards,
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