Question
Hi,I have an excel spreadsheet with a filter model for the AD7175. I waswondering if there’s one available for the AD7124 too please?
Answer
Hello Matthew,Find enclosed the filter model for the AD7124. In the below link you can find the filter response models which also give information on timing,noise, 50/60 Hz rejection.http://www.analog.com/en/products/analog-to-digital-converters/ad-converters/ad7190.html#product-toolsTo check the noise, I recommend your customer to shotrt AIN+ and AIN- and connect them to some DC voltage such as AVDD/2. Under these conditions,the noise performance should be similar to the data sheet values. If the noise is still higher than the expected value, ensure that the power supplyis low noise and well decoupled. Also, ensure reference is low noise.