Nonlinear Ramp Generators
S. Faetti, M. Martinelli, Pierangelo A. Rolla, S. Santucci · IEEE Transactions on Instrumentation and Measurement · 1983
Several circuits generating nonlinear time functions by digital techniques are shown. The functions we treat are logarithmic, exponential, square root law, and quadratic law. The specific advantages, general characteristics, and criteria for the selection of components are discussed. Simplicity and high slew rate capability are the main advantages of these circuits.