Part Number: ADS8661
All use CPHA = 0, CPOL = 0.
1. The issue is for description of datasheet.
Datasheet shows, the delay time , tD_CKDO , is 12ns, which is SCLK launch edge to (next) data valid on SDO-x.
The described in the datasheet shows, setting…
Hi Ethan,
In the case of input protection, the clamping diodes can be placed at the input of the ADC, not necessarily the OPA input. I recommend the following video as well, which goes over many options to protect the inputs of the ADC. The ADS8661, ADS8665…
Part Number: ADS8661 Other Parts Discussed in Thread: ADS8688 , ADS8674 , ADS8665 Hi All,
I bought a ADS8661 . I want to program this device but I couldnt find any Application Note for development. Is there any example or any code for the program.
Th…
Part Number: ADS8661 Hello,
I am trying to work with the device but with no success, the datasheet is not clear enough.
1) I am using SPI MODE0.
2) I am sending data in 8bit data groups (same when receiving data) ie sending 8 clocks at a time, hence for…
Hi Luke,
Both ADS8661 and ADS8681 definitely should work for analog DC input or 1KHz sinewave signal. The glitch you observed was caused by something else in your system. When you check glitch on the analog input, make sure you have proper settings on…
Hello Takashi,
Your understanding is correct, ADS8506IB has smaller INL,DNL and Full Sclae Error. The new SAR ADCs which can cover +/-10V bipolar and unipolar input include ADS8661 (12-Bit, 1.25mSPS), ADS8665 (12-Bit, 500ksps), also 14-Bit ADS867x and 16…
Part Number: ADS8665 Other Parts Discussed in Thread: ADS8661 , ADS8556 , ADS8557 , ADS8558 , ADS8568 , ADS8548 , ADS8528 , THS4561 , OPA192 Hi 2 all! Maybe my question is fool byt i need answer. I looking for ADC for sampling 50kHz bipolar signal. My choise is…
Hi Takashi,
1. I did not see any risk to use a ceramic cap for the power supply, ceramic caps are frequently used on our EVM boards.
2. The analog power supply is very important for data conversion because it can directly affect your measured performance…
