I have a question about the input buffer of the PCM4202 ADC. On page 22 of the PCM4202 datasheet, they describe an input buffer. It's pretty standard with gain and filtering. However, the ADC requires the input to centered at +3V so it uses a COM pin on the op amp (OPA1632). However, this COM output from the PCM4202 needs to be buffered which makes sense. What doesn't make sense is why they use an OPA227, a high end expensive audio op amp. To me, that seems like a job for a ua741. Digging in to the OPA227 datasheet, I see a VERY low input offset voltage (+-5uV). Is this why they chose that op amp? What issues could arise if using a ua741 (since ua741s can have a high input offset voltage)?
Note that I have access to OPA2227s, which are 2 channel OPA227s with the same functionality excluding offset trim, and ua741s. However, I don't currently have the PCM4202 or the OPA1632.
Links are provided below of the datasheets: