LOG300数据手册TI中文资料规格书

描述 Description

The LOG300 is an integrated low-noise amplifier (LNA) + log detector analog front end (AFE). This device supports an input frequency range of up-to 40MHz and a typical dynamic range of 97dB. The LOG300 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 6µVP. The transient output response can be adjusted by tuning of the capacitor and the resistor connected at the Log o/p pin. The integrated frequency detect feature of LOG300 enables users to extract input signal frequency and zero-crossing information.

The LOG300 is available in a 16-pin SOIC and 16-pin VQFN package. The LOG300 is operational from a 3V to 5.25V supply and over the full ambient temperature range of –40°C to +125°C.

SA614 AD8314 NJM2549 AD8310

特性 Features

Input range:

LNA + log detector: 6µVP to 200mVP

Log detector: 25µVP to 1.6VP



Low input-referred noise: < 3µVRMS

Dynamic range: > 97dB with log conformance error (LCE) = ±1dB

Signal detection up to 40MHz; even higher with reduced LCE

Input frequency detection, zero cross detect

Supply: 3V to 5.25V