SLOU582 September 2024
The LOG300 is an integrated low-noise amplifier (LNA) + log detector analog front end (AFE). This device supports an input frequency range of 100Hz to 80MHz and a typical dynamic range of 97dB. The is intended for use in applications that require a wide dynamic range of voltage and signal measurement. The low input noise and high sensitivity of the integrated LNA, allows voltage measurement of signals as low as 4 µVrms up to 1.4 Vrms. The transient output response can be adjusted by tuning of the capacitor and the resistor connected at the log o/p pin. The LOG300 is available in a 16-pin SOIC and 16-pin VQFN package. The LOG300 is operational from a 3V to 5V supply and over the full ambient temperature range of –40°C to +125°C.