Texas Instruments LOG300 40MHz Logarithmic Detector is an integrated Analog Front End (AFE) consisting of a low-noise amplifier (LNA) and a Log Detector block. This device supports an input frequency range of up to 40MHz and a typical dynamic range of 98dB. The LOG300 is intended for applications requiring a wide dynamic voltage and signal measurement range. The Log Detector block of the LOG300 supports both single-ended and differential inputs. The low input noise of the integrated LNA allows the measurement of signals as low as 7µVP. The transient output response can be adjusted by tuning the capacitor connected to the Log_Out pin. The integrated frequency detect feature of LOG300 enables users to extract input signal frequency and zero-crossing information.
