Part Number: ADS8691 I intend to use the ADS8691 with a throughput rate of 1000kSPS and now checking the requirements to the SPI. I’m confused regarding the serial clock frequency with a maximum of 66.67MHz. As I understand, data transfer time (Data Read…
Hi Dale Li..,
Sorry for delayed response.
I tried as per your suggestion, I am unable to receive any data in the SD0 pin.
I am using master as Raspberry pi 3 board - bcm2835 Library.
From the master board, I need to read the ADC port of ads8691.
…
Part Number: ADS8691
Dear All,
I am trying to get the converted signal from ADS8691 on my MCU.
It seems to perform the reset and basic communication of the ADC, but there seems to be a problem in the register setting to obtain accurate conversion data…
Part Number: ADS8691 Other Parts Discussed in Thread: OPA141 , Dear All,
My last problem was solved with your help. Thanks again.
When the ADC input test was performed based on the completed code, it was found that the converted value was abnormal when…
Thanks, Bryan.
Hi Ahmet,
Please use the attached file for unipolar input conversion. Also, I updated the bipolar calculation because of an error. Please try and let me know if you have any questions.
Regards,
Dale
/cfs-file/__key/communityserver-discussions…
Other Parts Discussed in Thread: ADS122U04 , ADS1220 , ADS122C04 , ADS1219 , ADS8691 , ADS8910B , ADS9110 , ADS1252 , ADS1235 , ADS1261 , ADS1260 Hi Team,
A customer of mine is looking for two ADCs. Could you please recommend suitable solutions?
Single Channel,…
Hi arun chaudhary,
Unfortunately, we do not have a sample code for this ADC. Except the datasheet, the recommendations in previous posts on E2E forum below can help you understand the timing and register writing and reading.
ADS8681: Configuration Iss…
Hello Albert,
Please refer to the answer in another thread, ADS8685 has a similar command structure as ADS8691.
https://e2e.ti.com/support/data-converters/f/73/t/886861
Please let me know if you still have questions after check.
Thanks®ards,
D…
Hi Brecky,
The conversion code you got is close to the code for 5V input since you missed two bits also you have to make sure your are using a precision DC signal generator instead of a power supply as input to the ADC
1. The second byte should have 8…