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latika
   Hello, AD7193 calibration issue is solved & now i am getting values of offset register & Full scale register as follows.         Offset register=8389236       Full scale register=5584950   AD7193 Configured as follows: Mode register=0x0C0060 Configuration register=0x040118 Gain=1, Vref1=2.5, Chop disable, FS[9:0]=96,Continuous… (Show more)
in Precision ADCs
tmc_EAS
I am looking for an ADC (16-24 bit) that has an AVDD voltage of 1.8V (typical). It would appear that the online ADI search engine only provides the IOVDD rail parameter and does not have a filter parameter for the AVDD. Can you let me know if the AVDD search parameter is available in the online search engine or what other search options might be… (Show more)
in Precision ADCs
duduzhuzi
SPI can use. Write the register as Example 4. But the DRDY I/O always high, and the OPSTAT register(0x1F) is 0x0004. Read by the frames mode(0x40), the Frame Header is 0xC0000.  All the Ready bit is 1.Write the register as Example 1. The status is also like Example 1.  Is there any operation I should do after reset the chip? Why it always be… (Show more)
in Precision ADCs
SteveRodeen
Hello, we need to interface the AD7124-8 with an ATMEGA32U4 (5V mcu) through SPI. We are conisdering the attached shifting diagram: Does anybody have any insight on: 1. Will we have any issues with the fact that we are not using any pull-ups particularly to the CS pin? (I think the ADG3300 pins will not be able to handle lowervalue pull-ups -… (Show more)
in Precision ADCs
muthusms
Hi,   For Our upcoming project, requirement is to measure from 50nV to 1V. Previously, I worked with AD7124 to measure RTD,K-type thermocouple and Pressure sensor. Even if I get 100% throughput (All 24 bits) which is not practically possible, I will only get 150nV per count for 2.5V reference. So, I have to go to 32 bit ADC to get the accuracy.… (Show more)
in Precision ADCs
latika
AD 7193 Calibration issues??.... Please refer attached file for detail configuration started with ad7193 data reading from channel1 but got around 2% error near to zero to minimize it i am trying to do the internal zero scale & internal full calibration of AD7193.   But MISO never going low ones calibration is initiated.
in Precision ADCs
majkls
Hello, I have a problem with integrating my circuit with AD7124 IC. When I shorten the inputs of the OP-amp circuit driving the ADC, ADC shows that there is a 0,95 mV offset. However when I measure voltage on input capacitor between AIN2, AIN3 (my differential pair) I got something like 0,09mV (corresponds to offset of the OP-AMP). When I apply… (Show more)
in Precision ADCs
virk_ps
hello   i am using Arduino Uno connected to PModAD5 to capture some real time signals from a geophone ( ~500 Hz and ~10mv) , i am using the arduino library written by you AnneM for this. there is an example Voltage Measure in that library , and i am trying to use that to sample some AC signals from signal generator (i have tried sine wave , ramp… (Show more)
in Precision ADCs
LDBM
Hi, This is a bit of following question on this post. I am using a AD7608: every time a conversion is initiated (CONV), once the BUSY signal indicates the conversion has completed, reading the 8 channel data on the SPI bus is initiated with /CS and clocking the SPI MISO line. Now typically one would read 8 channels * 18 bit = 144 bits on the… (Show more)
in Precision ADCs
jem
The data sheet doesn't include any requirements on the 32.768 xtal.  Can ADI recommend a specific part?  Or provide guidance on allowable ESR for the xtal?
in Precision ADCs
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