Isolated USB Analog To Digital Converter

For measurement and audio input.

Main features:

  • 2 channels, 96/24 digitizing

  • Full galvanic isolation between USB digital part and ADC part.

  • Better than -135 dBFS Noise Floor

  • Better than -110 dBFS 2nd/3rd harmonics @0 dBFS signal.

  • Better than -135 dBFS 2nd/3rd harmonics @-20 dBFS signal.

  • UAC1 operation (not need driver for Windows) with firmware upgrade.

  • No external power supply need (USB-Powered).

  • Input level control potentiometer added.

  • 0.5Vrms Full Scale (max., with potentiometer at right position)*

    • Power and Overload LED indication.

  • Small 120x75x30mm case (Depth-Width-Height).

* - changes since April 2019: Full Scale increased to 0.8Vrms, input is DC-coupled.

Olivine-2 Measurements

Summer 2020 WARNING!

Last time we faced a drop sample problem with some computers. It can be seen in spectrum analyzer as a higher level, or (with small FFT points quantity) - jumping up-down.

This phenomena occurs as on new as on old PC, without any correlation!

And is independent from the Windows type - we tested Win 7/32, Win 7/64 and Win 10/64 on different hardware.

We found solution, so we can continue to manufacture Olivine-2.

Solution is here. (firmware update process may not work under MacOS/Linux!)