I changed the op amp!

I realized today that I was using a 50 year old op amp! 50 years?! I should be able to get a op amp that’s cheap, faster, has lower noise, and is rail to rail! I found a new op amp, the COS8092SR, which features:

• 300 MHz gain bandwidth product
• 9nV/√Hz input voltage noise density
• 200 V / us slew rate
• Almost the exact same package (actually smaller)
• Rail to rail operation
• And just 30 cents apiece!

I’ve updated that and I’ve finished up my BOM.