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Differential analog microphone amplifier to single ended ADC input on ADAU1787

Category: Hardware
Product Number: ADAU1787


I need a help to review schematics implementation converting analog microphone differential output to ADC single ended input on ADAU1787. 

Here are details: 

- the microphone used Infineon analog IM73A135V01XTSA1 microphone with diff. output; 

- the microphone powered from 1.8V;

- I want to connect this microphone to single ended ADC input on ADAU1787 device; 

- To support full dynamic range I want to use external OPAMP circuits powered from 1.8V as well; 

- The part OPA1671 part selected - see circuit shown. 

Is any concerns about this circuit? 

Thank you! 

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[edited by: GenevaCooper at 7:28 PM (GMT -4) on 11 May 2023]
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