[Stephen Woodward] is familiar with digital potentiometers but is also familiar ... t useful at even moderately high frequencies. The circuit works by driving two CMOS switches into an RC circuit.

The circuit works by driving two CMOS switches ... While it might not solve all your digital potentiometer problems, there are cases where it will be just what you need. We’ve looked at ...

This work has shown that predictable parameter variations can be utilized even to improve quality and reliability of analog circuit design beyond known limits. A parameter variation aware 14 bit 1V ...