Single-ended Input to Differential Output Circuits. A Comparative Analysis

Circuits for the precise generation of balanced signals from single-ended input are very important in many instrumentation and communication systems. We present in this work a comparative study between two alternatives of designs when we use high frequency sinusoidal input signal (up to few tens of megahertz). Mathematical models of the error in magnitude and phase of the output signals have been developed. The experimental results of the discrete implementation have validated our models