ADS1202: modulator as part of sigma-delta ADC

Hi Maria,

Welcome back!  So from your previous posts, you were able to take the bit-stream output from the ADS1202 and manipulate the data to produce an FFT using some sort of digital I/O card in a PXI Chassis.  Now you want to put it all together as a stand alone ADC, is that right?  You could use a chip like the AMC1210, but that might be a little bit of an overkill for your project.  We have processors like the TMS320F28379D that can filter the ADS1202 bit stream or you could use a simple FPGA/CPLD to do the filtering.  What is it that you want to do in the end?

Hi Tom,

Thanks for your answer. I`m afraid, you got me wrong. I don`t need a separate digital filter itself. While working with ADS1202 I have already implemented it programmly.
I was thinking about ADC chip (with filter inside) which modulator is created by the same technology as ADS1202. 

Ah - OK then.  I don't know that we have a stand alone delta-sigma that used the same die as the modulator in the ADS1202, but I can check.  What sort of speed/resolution are you looking for?  What sort of interface (I2C or SPI)?

Tom Hendrick said:

What sort of speed/resolution are you looking for?  What sort of interface (I2C or SPI)?

I`m looking for resolution 16-24, there can be any sort of interface.

Thanks very much!

Thanks a lot!