To whom it may concern,
We are planning to use the product in the pre-ADC amplifier stage. A signal that we deal with has frequency range between 150 kHz and 2 MHz. In this sense, minimum level that I meet is about -95dBm (corresponds to 0.4 uVrms for 78ohm differential system). In the datasheet of the product, it is stated input voltage noise as 1.1 nV/sqrt(Hz). This value also corresponds to 1.6uV for my highest frequency point and it looks I cannot properly amplify my weakest signal which is at -95dBm. My question is: Are my way of thinking and calculation I made correct? If so, we propose to use RF transformer to increase voltage level at input of the product. Does this method look applicable for you?
