PN differences

Question

Hello , 
 
 is anyone can support and let me know what are the main differences between the following EOL parts 
 AD977ABRZ Vs AD977ABR S Z Vs AD977A A RSZ

MTF_Walker · Accepted Answer

Decode the part number as follows: 
 AD977 - 100 ksps AD977A - 200 ksps 
 AD977(A)A - A Grade AD977(A)B - B Grade AD977(A)C - C Grade 
 AD977(A)xRZ 20-Lead SOIC AD977(A)xRSZ 28-Lead SSOP 
 So, 
 AD977ABRZ - AD977A (200ksps) - B-Grade - 20-Lead SOIC AD977ABRSZ - AD977A (200ksps) - B-Grade - 28-Lead SSOP AD977AARSZ - AD977A (200ksps) - A-Grade - 28-Lead SSOP)

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PN differences