Design of limiter circuit based on differential amplifier AD8350 and comparator ADCMP601
Qian Gao · Journal of Magnetic Materials and Devices · 2014
An ultra-wide band and large dynamic range limiter with operating frequency range of 30 to 512MHz was designed, which based on low distortion differential amplifier AD8350, Schottky barrier diode HSMS2822 and fast comparator ADCMP601. The balanced outputs of the AD8350, along with a couple of Schottky diodes HSMS2822, make up a very high speed, full-wave rectifier supplying rectified voltage, from which transistor-transistor logic(TTL)level signal is obtained by comparator ADCMP601. The limiter has such advantages as ultra wide-band, high-precision, high response speed and large dynamic range, etc, meeting the requirements of high performance input limiter.