Hi Angel,
I found a problem about library which I used for ADS1220. In the process, there are two delay before and after CS Low - High operation. I changed the delay from ms to us as in the datasheet values, finally the issue resolved. Thank you very…
Hi,
I recreated a 2-wire and 3-wire RTD setup on the ADS1220 EVM.
I used a 100 Ohm resistor for the 2-wire RTD, and the reference resistor on the EVM was 2.4kOhms.
Gain = 1, PGA disabled, 175SPS DR.
The followings are the results for when the IDAC was…
Part Number: ADS1220 Tool/software: Hi DC team, What is our alternative to AD7793BRUZ? Crossref suggest different devices depending on the reel size of ADI !?? AD7793BRUZ -> ADS1220IRVAR
AD7793BRUZ-REEL -> ADS1219IRTER
BR Josef
Part Number: ADS1220 Tool/software: Hello,
Looking at section 9.2.2 of the datasheet details an example application with a 3 wire RTD. What would be the consequence of removing Rf4 and Ccm4 in the reference design? would that effect noise performance…
Hi Zabieru,
Have you tried measuring the voltage across the RTD and across the reference resistor with an oscilloscope? With the IDACs set at 250uA the voltage across the reference resistor should be around 1.2V and the voltage across the RTD should be…
Part Number: ADS1220 Other Parts Discussed in Thread: ADS1120 Tool/software: Dear All, I am looking for integrated(digital IC) solution for measuring temperature range from 0-300 degc. If not please suggest a low cost temp solution using external sensor…
Part Number: ADS1220 Dear TI, this is always a great pleasure to use your product and namely the ADS1220 24-bits ADC to be used with RTD 3-wires. Actually this thread is a follow-up of the [1] thread about the ADS1220-EVM tests. This time we want to validate…
Part Number: ADS1220 Dear
I plan to use ADS1220 with single ended analog input in the range of 0- 3,2 Volts.
AVdd = 3,3 volts and DVdd = 3,3 volts.
Since Internal ref is limited to 2,048 Volts, Does the best solution is to connect external 3,3 volts Ref…
Hi Sebastian,
Sebastian Sokolowski1 said: 1. "DRDY remains low but pulses high for a duration of 2 · t(MOD) prior to the next DRDY falling edge" What will happen when the pulse is observed during active SCLK? I know that with the first SCLK DRDY will go…
Part Number: ADS1220 Other Parts Discussed in Thread: ISO6741 , Tool/software: Hello, i want to use ADS1220 with iso6741 and there is 4 pin for SPI isolation barrier. The question is do i need to use DRDY pin while using ADS1220 to read thermocouple?
