Part Number: ADS7886 Hi,
1. I was looking for detailed calculations for 1MSPS for Fsclk of 20MHz. The value which I get is 1.25MSPS but mentioned in the datasheet is 1MSPS for 20MHz. Can you please help me what i am missing and what calculation is…
Part Number: ADS7886 I am running the ADS7886 but the output appears to be opposite to what I expect so 5V returns a value of zero and 0V returns a value of almost 4095.
Do you know why this might be happening? I am running off of a 5.0V supply.
…
Part Number: ADS7886 After digging through the datasheet I can't find a good description of what the output data bits are actually representing?
My guess is that the bits are representing some kind of GND to VDD scale for the input voltage, but I…
Part Number: ADS7886 Hello,
Our customer is trying to develop AD conversion circuit for 500kHz 12bit 4.096V full-scale signal from Sensing block.
They look for >1MSPS, >12bit, Serial interface, Small PKG, Low-power SAR ADC.
ADS7886 had been selected…
Part Number: ADS7886 Hello, I have an external 12 bit ADC (ADS7886) on a custom designed PCB with SMT32F767. This ADC interfaces with the microprocessor with SPI. Now my problem is that I couldn't read digitized values correctly. Maybe because of the…
Part Number: ADS7885 Other Parts Discussed in Thread: ADS7886 My customer is evaluating ADS7886 and inquires supply current. They pull up to VDD by 1Mohm resister and SCLK and SDO pin is OPEN.
When they evaluate some unit, some unit has VDD current…
Part Number: ADS7886 I have been looking into providing adequate Anti-Aliasing for the front end of a 1Msps ADC. The actual maximum input waveform is expected to be of no higher a frequency than 100 KHz, but may be a little higher. My initial investigation…
Hi Jonathan
ADS7886 maximum serial clock frequency is 20MHz. This corresponds to full throughput of 1MSPS. You need to provide external clock of <= 20MHz to SCLK based on your sampling speed. Though Rasberry Pi is based on 250MHz clock and if you are…
