Hello,
How are you using the SYNC signal so? The AD7770 is a sigma delta ADC so it will continuously run conversion managed by MCLK. SYNC_IN is just a synchronization input, that you may eventually issue if your DRDY is out out sync of a given synchronization…
Hi ,
1.Is this IC AD7770 SIL certified ? Can this be used for a design that is to be SIL certified ?
2. Also can we sense 0-200 mA using an external sense resistor through this IC. If so, what will be the sense resistor to be connected? In datasheet it…
Hello!
I have question regarding the analog channels of the AD7770: are the analog channels isolated in AD7770? Can they be coupled directly with signals coming from plcs? Isolation amplifiers required for AD7770 if necessary?
Thank you!
Hi.
I have two questions about ad7770.
1. how long time to start and finish the conversion?
'sar' has timing data(conversion time) on the data sheet, but no 'delta-sigma'.
2. When does 'MCLK Switch Error' occur?
I am trying…
I’m using an AD7770 as my main ADC on a custom board I’m designing. I’ve been playing with some prototypes and experimenting with the AD7770’s built-in temperature sensor. Using the code from ADI’s website I’m reading back some odd values for temperature…
Hello,
I'm using the Eval Board of AD7770.
The maximum amplitude I can measure between AIx+ and AIx- is +/- 1.65V (dual supply operation)
According to the AD7770 datasheet, he noted that the maximum amplitude is +/- 2.5V (according to table 11 of…
Hello,
I have a question about a differencis of digital flter between AD7770 and AD7779.
Attached file is the rms noise and resolution performance table from the datasheet.
AD7779 and AD7770 have same combination of ODR and Decimation Rate excluding 32kSPS…
DOCX
Hello.
I try to make the AD7770 read all ch with gain=1 no offset and no gain correction.
I use AD7779 example of Analog device in the GitHub which has only .c .h files (and lot of mistake I manage to correct by me or other google search).
The main setting…
Hello!
I use AD7770 with variable sps, and set new sps value approximately every 2ms.
Measurements are correct, but the ADC produces an error MEMMAP_CRC_ERR.
Any other error flags is zero (Including any SPI errors).
According to the documentation, I have…
Hello all.
I want to use the AD7770 to sample a precise point in input signal. I have 1 DAC that change the test signal for different level, and I do a single measure to each point.
There is no information on the AD7770 datasheet about the process of…
