Quotient circuits employing VVR

The addition of two fixed resistors to a recently proposed, inexpensive quotient circuit based on the voltage variable resistance (VVR) property of an FET is shown to improve the dynamic range of operation. A model for both the original and final circuits is provided which shows that the circuits can have an all-pass behavior when operated in the neighborhood of certain denominator voltages. The new circuit is derived in steps from the original circuit, and laboratory data and error measurements are provided for all the circuits.<
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