Analog Devices AD8330 Manuals

This document describes the features and characteristics of the AD8330 variable gain amplifier. It has a fully differential signal path, which can also be used with single-sided signals. The input range is from 0.3mV to 1V rms, and the output is in rail-to-rail mode. It also has automatic offset compensation, linear-in-dB and linear-in-magnitude gain modes. The gain range is from 0dB to 50dB, with an inverted gain range of 50dB to 0dB. The nominal gain range is from 0.03 to 10, with a magnitude range of 15mV to 5V. It has a constant bandwidth of 150MHz, low noise, low distortion, and low power consumption. It is suitable for applications such as pre-ADC signal conditioning and driving adjustable AGC amplifiers.

AD8330 is a low cost DC-150MHz variable gain amplifier from Analog Devices. This product has a fully differential signal path and can also be used with single-ended signals. The input range is from 0.3mV to 1Vrms and the output is rail-to-rail. The differential RIN is 1kΩ and each output ROUT is 75Ω. This product also has automatic offset compensation and can operate in either linear dB or linear magnitude gain modes. In the linear dB gain mode, the gain range is from 0dB to 50dB with a gain slope of 30mV/dB. In the inverted gain mode, the gain range is from 50dB to 0dB with a gain slope of -30mV/dB. The input voltage VMAG is in the range of -0.03 to -10.

The document introduces the AD8330 variable gain amplifier, which has the characteristics of low cost, low noise, low distortion, and low power consumption. It is suitable for applications such as pre-ADC signal conditioning, 75Ω cable driving, etc.