LT1930A, Fiber Optic Communication Systems Benefit from Tiny, Low Noise Avalanche Photodiode Bias Supply

LT1930A-Based Boost Regulator Produces 30V to 90V for Avalanche Photodiode Bias Supplies with Only 200mVP-P Noise. The DAC, driven from a processor, adjusts the output from 30V to 90V to compensate for temperature dependent APD gain fluctuations