I need one signal to convert into two signals, and that between the phase difference was 90 degrees. Spread, the inaccuracy of the phases is not more than 0.2 degrees. Powered from a unipolar +5 to +13.8 V. the input sine or square, the output is the same or sine, or square, in principle, not important. All other parameters in the figure. Is there such, not an expensive chip from Analog Devices?