Solutions Search - LTC6242 - Quad 18MHz, Low Noise, Rail-to-Rail Output, CMOS Op Amp

Paralleling Amplifiers to Reduce Noise

Jun 27th 2005
In high gain circuits noise reduction is an important consideration. Paralleling four amplifiers will reduce the total noise of the circuit by a factor of two. The output noise of each amplifier, enOUTx, is attenuated by four and summed at the output terminal. Since noise from uncorrelated sources is summed in RMS fashion the ...