What is your suggestion to match the specs of the HP3400A AC millivoltmeter’s rms converter with analog parts available today? I’m drawing a line to exclude AD conversion and digital rms calculation. So it stays analog.
Below is the spec sheet:
Be sure to click 'more' and select 'suggest as answer'!
If you're the thread creator, be sure to click 'more' then 'Verify as Answer'!
What is your suggestion to match the specs of the HP3400A AC millivoltmeter’s rms converter with analog parts available today? I’m drawing a line to exclude AD conversion and digital rms calculation. So it stays analog.
Below is the spec sheet:
Thanks for keeping the convo going. The strange layout led me to look around on ADI's, and now I have a new favorite: ADL5511 for the rebuild. https://www.analog.com/media/en/technical-documentation/data-sheets/ADL5511.pdf
Looks like they gave higher priority to getting that bottom pad connected. DC-wise, what they did is valid. Maybe at 10 MHz, it's still ok to not have that balanced layout...
You get excellent results considering the markings are not right for a genuine part.
considering the markings are not right for a genuine part.
Q1 is per AD specs. What's off with that package?