New VFC uses flip-flops as high speed, precision analog switches
Voltage to frequency converters (VFCs) are a popular method of noise-tolerant analog to digital conversion. Synchronous VFCs (like the Analog Devices AD652) in which an external, usually crystal-derived, clock provides timing for the conversion process, have significant performance advantages (speed, linearity, precision independent of passive components) over the free-running type in which conversion timing must … Read more