RF-to-Bits Solution Offers Precise Phase and Magnitude Data to 6 GHz

Circuit precisely converts a 400 MHz to 6 GHz RF input signal to its corresponding digital magnitude and digital phase. The signal chain achieves 0 to 360 of phase measurement with 1 of accuracy at 900 MHz. The circuit uses a high performance quadrature demodulator, a dual differential amplifier and a dual differential 16-bit, 1 MSPS successive approximation analog-to-digital converter (SAR ADC)