This is an AD844 IV stage with OPA627 buffer at the output. I got the Gerber file posted by a member here some time ago and recently done up a few boards since I have 5 of them (MOQ by JLCPCB).
DC can be easily trimmed using the trimmer at the AD844 and measured at pin5. Then it can be trimmed out again at the trimmer at OPA627. Holds at zero Volts DC using 300mV range on my FLuke multimeter, rock steady all the time. No caps needed at all at the output. I am using 1.5k as the IV resistor and running this board for my Miro AD1862 dac.
65usd net , shipped to your country.
DC can be easily trimmed using the trimmer at the AD844 and measured at pin5. Then it can be trimmed out again at the trimmer at OPA627. Holds at zero Volts DC using 300mV range on my FLuke multimeter, rock steady all the time. No caps needed at all at the output. I am using 1.5k as the IV resistor and running this board for my Miro AD1862 dac.
65usd net , shipped to your country.
