Hittite has released a new 54 dB dynamic range, millimetre-wave logarithmic detector capable of operation over a wide frequency range spanning 1 to 23 GHz. The HMC948LP3E is designed for broadband test and measurement, point-to-point microwave radio, VSAT, receiver signal strength indication and wideband power monitoring applications. It employs successive compression topology which delivers high dynamic range over a wide input frequency range. As the input power is increased, successive amplifiers move into saturation one by one, creating an approximation of the logarithm function. The device provides a nominal logarithmic slope of +14,2 mV/dB and an intercept of -111 dBm at 23 GHz. Logarithmic error over temperature is ±1,5 dB at 23 GHz, specified over the entire -40°C to +85°C operating temperature range.
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