Can AD8476 be used to drive ad7176-2(24-bit ,250ksps) adc?

Question

I want to use AD8476 as a single ended to differential convereter. Converted differential signal will be read by using ad7176-2 which is 24 bit adc.AD8476 datasheet says that it is suited for driving 18-bit converters up to 4 MSPS. Can I use it to drive ad7176-2(24-bit ,250ksps)?

krisf · Accepted Answer

Hi Ajay, 
 If you will be using the AD7176-2 at 250ksps, the AD8476 should be ok for you. The main thing to guard against is the noise that the amplifier will add to the circuit. Based on the datasheet of the AD7176-2, with default configurations, you would have a peak to peak noise of 66uV at an output data rate of 250ksps. The amplifier would add only about 6uVpp, which is comparably lower to the ADC's. I think this should be ok. 
 Where will you be taking your input signal from? Do you plan on having some sensor hooked up to it? What is your general application? 
 Thanks, 
 Kris)

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Can AD8476 be used to drive ad7176-2(24-bit ,250ksps) adc?

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